IPWorks MQ 2022 C++ Edition
Version 22.0 [Build 8369]

AMQPClassic Class

Properties   Methods   Events   Config Settings   Errors  

An easy-to-use AMQP 0.9.1 client implementation, with support for RabbitMQ extensions.

Syntax

AMQPClassic

Remarks

The AMQPClassic class provides an easy-to-use AMQP 0.9.1 client implementation, and it also supports certain RabbitMQ extensions to the AMQP 0.9.1 specification. The class supports both plaintext and TLS-enabled connections over TCP.

Connecting

The AMQP 0.9.1 transport protocol has two layers: an overall connection between the client and server, and one or more channels running over that connection.

The class implements both layers, so the first step is to initiate the overall connection. Set the AuthScheme, User, Password, SSLEnabled, and VirtualHost properties if necessary, then call the ConnectTo method, passing it the server's hostname and port number. (If the server in question is not running RabbitMQ, disabling the RabbitMQCompatible configuration setting before connecting is also recommended.)

The next step is to create at least one channel, which can be accomplished by using the CreateChannel method. The class allows creating any number of channels, up to the limit specified by the MaxChannelCount configuration setting.

Connecting and Creating a Channel // The examples in this documentation use a RabbitMQ server, which requires SASL Plain auth. amqpc1.AuthScheme = AmqpclassicAuthSchemes.smSASLPlain; amqpc1.User = "guest"; amqpc1.Password = "guest"; amqpc1.SSLEnabled = true; amqpc1.ConnectTo("amqpclassic.test-server.com", 5671); amqpc1.CreateChannel("channel");

Once the class has connected to the server, and one or more channels have been opened, the class can begin manipulating exchanges and queues, publishing messages, and creating consumers.

Note that most AMQP 0.9.1 operations can themselves vary in their complexity. The examples below are intentionally simple for the sake of clarity and brevity, but links are provided for many other parts of the class's API where more detail can be found.

Declaring Exchanges

The DeclareExchange method is used to declare (i.e., create, or verify the existence of) exchanges on the server. While all AMQP servers provide a default, direct-type exchange that all queues are bound to automatically (using their name as the routing key), more complex use-cases will often require creating additional exchanges of varying types.

Declaring an Exchange // Declare a direct-type exchange. amqpc1.DeclareExchange("channel", "MyExchange", "direct", false, false, false, false);

Exchanges can also be deleted using the DeleteExchange method.

Declaring Queues

The DeclareQueue method is used to declare (i.e., create, or verify the existence of) queues on the server. Unlike with exchanges, the server does not provide any queues by default, so declaring a queue is always necessary (unless one has already been created by another client, or configured ahead-of-time on the server itself).

Declaring a Queue // Declare a queue. amqpc1.DeclareQueue("channel", "MyQueue", false, false, false, false, false);

Queues may also be deleted or purged using the DeleteQueue and PurgeQueue methods.

Binding Queues to Exchanges

The BindQueue method is used to bind a queue to an exchange. Exchanges use the information held by their queue bindings to determine which messages to forward to which queues.

Note that all AMQP 0.9.1 servers automatically bind all queues to their default exchange (which is always a direct exchange with no name) using each queue's name as the binding's routing key. This makes it easy to send a message to a specific queue without having to declare bindings; just call PublishMessage, pass empty string for ExchangeName, and the name of the desired queue for RoutingKey.

Binding a Queue to an Exchange // Bind a queue to an exchange. Messages will only be delivered to the queue if their routing key is "MyRoutingKey". amqpc1.BindQueue("channel", "MyQueue", "MyExchange", "MyRoutingKey", false);

Queues can also be unbound from exchanges using the UnbindQueue method.

Publishing Messages

To publish a message, populate the Message* properties, and then call the PublishMessage method.

Publishing a Message amqpc1.Message.Body = "Hello, world!"; // Publish a message to the server's default (no-name) exchange, using the name of a specific queue as the routing key. amqpc1.PublishMessage("channel", "", "MyQueue", false, false); // Publish a message to the "MyExchange" exchange, using the routing key "MyRoutingKey". amqpc1.PublishMessage("channel", "MyExchange", "MyRoutingKey", false, false);

Note that outgoing messages may be handled differently by the server if the channel they are sent over is in transaction or (for RabbitMQ only) "publish confirmations" mode. Refer to the EnableTransactionMode and EnablePublishConfirms methods for more information.

Receiving Messages

There are two possible ways for the class to receive a message:

  • Messages can be asynchronously pushed to the class from the server. At any point in time, the server may push a message to the class from a queue that the Consume method has been used to attach a consumer to.
  • Messages can be synchronously pulled from the server by the class. The FetchMessage method is used to attempt to pull (or "fetch") messages from a specific queue.

Regardless of how they are received, all incoming messages cause the ReceivedMessage* properties to be populated and the MessageIn event to fire.

Receiving a Message // MessageIn event handler. amqpc1.OnMessageIn += (s, e) => { if (e.MessageCount == -1) { // The server pushed a message to us asynchronously due to a consumer we created. Console.WriteLine("The server pushed this message to us via consumer '" + e.ConsumerTag + "':"); Console.WriteLine(amqpc1.ReceivedMessage.Body); } else if (e.DeliveryTag > 0) { // We pulled a message from a queue with the FetchMessage() method. Console.WriteLine("Message successfully pulled:"); Console.WriteLine(amqpc1.ReceivedMessage.Body); Console.WriteLine(e.MessageCount + " messages are still available to pull."); } else { // We tried to pull a message, but there were none available to pull. Console.WriteLine("No messages available to pull."); } }; // Attach a consumer to "MyQueue". amqpc1.Consume("channel", "MyQueue", "consumerTag", false, true, false, false); // Or, try to fetch a message from "MyQueue". amqpc1.FetchMessage("channel", "MyQueue", true);

Note that the MessageIn event always fires if FetchMessage is called successfully, even if there were no messages available to fetch; refer to MessageIn for more information.

Property List


The following is the full list of the properties of the class with short descriptions. Click on the links for further details.

ArgumentCountThe number of records in the Argument arrays.
ArgumentNameThe table property's name.
ArgumentValueThe table property's value.
ArgumentValueTypeThe table property's value type.
AuthSchemeThe authentication scheme to use when connecting.
ChannelCountThe number of records in the Channel arrays.
ChannelAcceptWhether the channel is currently accepting new messages from the server.
ChannelModeWhat mode the channel is operating in.
ChannelNameThe name of the channel.
ChannelReadyToSendWhether the channel is ready to send a message.
ClientPropertyCountThe number of records in the ClientProperty arrays.
ClientPropertyNameThe table property's name.
ClientPropertyValueThe table property's value.
ClientPropertyValueTypeThe table property's value type.
ConnectedThis property triggers a connection or disconnection.
FirewallAutoDetectThis property tells the class whether or not to automatically detect and use firewall system settings, if available.
FirewallTypeThis property determines the type of firewall to connect through.
FirewallHostThis property contains the name or IP address of firewall (optional).
FirewallPasswordThis property contains a password if authentication is to be used when connecting through the firewall.
FirewallPortThis property contains the transmission control protocol (TCP) port for the firewall Host .
FirewallUserThis property contains a user name if authentication is to be used connecting through a firewall.
HeartbeatThe heartbeat timeout value.
IncomingMessageCountThe number of records in the IncomingMessage arrays.
IncomingMessageAppIdThe Id of the application that created the message.
IncomingMessageBodyThe message body.
IncomingMessageChannelNameThe name of the channel the message is associated with.
IncomingMessageContentEncodingThe content encoding of the message's body.
IncomingMessageContentTypeThe content type (MIME type) of the message's body.
IncomingMessageCorrelationIdThe correlation Id of the message.
IncomingMessageDeliveryModeThe delivery mode of the message.
IncomingMessageExpirationThe time-to-live value for this message.
IncomingMessageHeadersHeaders associated with the message.
IncomingMessageIdThe unique Id of the message.
IncomingMessagePriorityThe priority of the message.
IncomingMessageReplyToThe address to send replies to for the message.
IncomingMessageTimestampThe message's timestamp.
IncomingMessageTypeThe message's type.
IncomingMessageUserIdThe identity of the user responsible for producing the message.
LocalHostThe name of the local host or user-assigned IP interface through which connections are initiated or accepted.
LocalPortThe TCP port in the local host where the class binds.
MessageAppIdThe Id of the application that created the message.
MessageBodyThe message body.
MessageChannelNameThe name of the channel the message is associated with.
MessageContentEncodingThe content encoding of the message's body.
MessageContentTypeThe content type (MIME type) of the message's body.
MessageCorrelationIdThe correlation Id of the message.
MessageDeliveryModeThe delivery mode of the message.
MessageExpirationThe time-to-live value for this message.
MessageHeadersHeaders associated with the message.
MessageIdThe unique Id of the message.
MessagePriorityThe priority of the message.
MessageReplyToThe address to send replies to for the message.
MessageTimestampThe message's timestamp.
MessageTypeThe message's type.
MessageUserIdThe identity of the user responsible for producing the message.
OutgoingMessageCountThe number of records in the OutgoingMessage arrays.
OutgoingMessageAppIdThe Id of the application that created the message.
OutgoingMessageBodyThe message body.
OutgoingMessageChannelNameThe name of the channel the message is associated with.
OutgoingMessageContentEncodingThe content encoding of the message's body.
OutgoingMessageContentTypeThe content type (MIME type) of the message's body.
OutgoingMessageCorrelationIdThe correlation Id of the message.
OutgoingMessageDeliveryModeThe delivery mode of the message.
OutgoingMessageExpirationThe time-to-live value for this message.
OutgoingMessageHeadersHeaders associated with the message.
OutgoingMessageIdThe unique Id of the message.
OutgoingMessagePriorityThe priority of the message.
OutgoingMessageReplyToThe address to send replies to for the message.
OutgoingMessageTimestampThe message's timestamp.
OutgoingMessageTypeThe message's type.
OutgoingMessageUserIdThe identity of the user responsible for producing the message.
PasswordA password to use for SASL authentication.
QueueMessageCountThe message count returned by various queue operations.
ReceivedMessageAppIdThe Id of the application that created the message.
ReceivedMessageBodyThe message body.
ReceivedMessageChannelNameThe name of the channel the message is associated with.
ReceivedMessageContentEncodingThe content encoding of the message's body.
ReceivedMessageContentTypeThe content type (MIME type) of the message's body.
ReceivedMessageCorrelationIdThe correlation Id of the message.
ReceivedMessageDeliveryModeThe delivery mode of the message.
ReceivedMessageExpirationThe time-to-live value for this message.
ReceivedMessageHeadersHeaders associated with the message.
ReceivedMessageIdThe unique Id of the message.
ReceivedMessagePriorityThe priority of the message.
ReceivedMessageReplyToThe address to send replies to for the message.
ReceivedMessageTimestampThe message's timestamp.
ReceivedMessageTypeThe message's type.
ReceivedMessageUserIdThe identity of the user responsible for producing the message.
RemoteHostThis property includes the address of the remote host. Domain names are resolved to IP addresses.
RemotePortThe port of the AQMP server (default is 5672). The default port for SSL is 5671.
ServerPropertyCountThe number of records in the ServerProperty arrays.
ServerPropertyNameThe table property's name.
ServerPropertyValueThe table property's value.
ServerPropertyValueTypeThe table property's value type.
SSLAcceptServerCertEncodedThis is the certificate (PEM/base64 encoded).
SSLCertEncodedThis is the certificate (PEM/base64 encoded).
SSLCertStoreThis is the name of the certificate store for the client certificate.
SSLCertStorePasswordIf the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
SSLCertStoreTypeThis is the type of certificate store for this certificate.
SSLCertSubjectThis is the subject of the certificate used for client authentication.
SSLEnabledWhether TLS/SSL is enabled.
SSLProviderThis specifies the SSL/TLS implementation to use.
SSLServerCertEncodedThis is the certificate (PEM/base64 encoded).
TimeoutA timeout for the class.
UserA username to use for SASL authentication.
VirtualHostThe virtual host to connect to.

Method List


The following is the full list of the methods of the class with short descriptions. Click on the links for further details.

BindQueueBinds a queue to an exchange.
CancelConsumeCancels an existing consumer.
CloseChannelCloses a channel.
CommitTransactionCommits the current transaction for a channel.
ConfigSets or retrieves a configuration setting.
ConnectThis method connects to a remote host.
ConnectToThis method connects to a remote host.
ConsumeStarts a new consumer for a given queue.
CreateChannelCreates a new channel.
DeclareExchangeVerifies that an exchange exists, potentially creating it if necessary.
DeclareQueueVerifies that a queue exists, potentially creating it if necessary.
DeleteExchangeDeletes an exchange.
DeleteQueueDeletes a queue.
DisconnectThis method disconnects from the remote host.
DoEventsProcesses events from the internal message queue.
EnablePublishConfirmsEnables publish confirmations mode for a channel.
EnableTransactionModeEnables transaction mode for a channel.
FetchMessageAttempts to fetch a message from a given queue.
InterruptInterrupt the current action and disconnects from the remote host.
PublishMessagePublishes a message.
PurgeQueuePurges all messages from a queue.
RecoverRequest that the server redeliver all messages on a given channel that have not been acknowledged.
ResetReset the class.
ResetMessageResets the Message properties.
RollbackTransactionRolls back the current transaction for a channel.
SetChannelAcceptDisables or enables message acceptance for a given channel.
SetQoSRequests a specific quality of service (QoS).
UnbindQueueRemoves a previously-created queue binding.

Event List


The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.

ChannelReadyToSendFires when a channel is ready to send messages.
ConnectedThis event is fired immediately after a connection completes (or fails).
ConnectionStatusThis event is fired to indicate changes in the connection state.
DisconnectedThis event is fired when a connection is closed.
ErrorInformation about errors during data delivery.
LogFires once for each log message.
MessageInFires when a message is received; as well as when an attempt is made to fetch a message from a currently empty queue.
MessageOutFires when a message is published.
MessageReturnedFires if a previously published message is returned by the server due to it being undeliverable.
SSLServerAuthenticationFired after the server presents its certificate to the client.
SSLStatusShows the progress of the secure connection.

Config Settings


The following is a list of config settings for the class with short descriptions. Click on the links for further details.

AuthorizationIdentityThe value to use as the authorization identity when SASL authentication is used.
ConsumerTagThe consumer tag associated with the most recently created consumer.
LocaleThe desired message locale to use.
LocalesThe message locales supported by the server.
LogLevelThe level of detail that is logged.
MaxChannelCountThe maximum number of channels.
MaxFrameSizeThe maximum frame size.
MechanismsThe authentication mechanisms supported by the server.
NackMultipleWhether negative acknowledgments should be cumulative or not.
ProtocolVersionThe AMQP protocol version to conform to.
QueueConsumerCountThe consumer count associated with the most recently created (or verified) queue.
QueueNameThe queue name associated with the most recently created (or verified) queue.
RabbitMQCompatibleWhether to operate in a mode compatible with RabbitMQ.
ConnectionTimeoutSets a separate timeout value for establishing a connection.
FirewallAutoDetectTells the class whether or not to automatically detect and use firewall system settings, if available.
FirewallHostName or IP address of firewall (optional).
FirewallPasswordPassword to be used if authentication is to be used when connecting through the firewall.
FirewallPortThe TCP port for the FirewallHost;.
FirewallTypeDetermines the type of firewall to connect through.
FirewallUserA user name if authentication is to be used connecting through a firewall.
KeepAliveIntervalThe retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received.
KeepAliveRetryCountThe number of keep-alive packets to be sent before the remotehost is considered disconnected.
KeepAliveTimeThe inactivity time in milliseconds before a TCP keep-alive packet is sent.
LingerWhen set to True, connections are terminated gracefully.
LingerTimeTime in seconds to have the connection linger.
LocalHostThe name of the local host through which connections are initiated or accepted.
LocalPortThe port in the local host where the class binds.
MaxLineLengthThe maximum amount of data to accumulate when no EOL is found.
MaxTransferRateThe transfer rate limit in bytes per second.
ProxyExceptionsListA semicolon separated list of hosts and IPs to bypass when using a proxy.
TCPKeepAliveDetermines whether or not the keep alive socket option is enabled.
TcpNoDelayWhether or not to delay when sending packets.
UseIPv6Whether to use IPv6.
LogSSLPacketsControls whether SSL packets are logged when using the internal security API.
OpenSSLCADirThe path to a directory containing CA certificates.
OpenSSLCAFileName of the file containing the list of CA's trusted by your application.
OpenSSLCipherListA string that controls the ciphers to be used by SSL.
OpenSSLPrngSeedDataThe data to seed the pseudo random number generator (PRNG).
ReuseSSLSessionDetermines if the SSL session is reused.
SSLCACertFilePathsThe paths to CA certificate files on Unix/Linux.
SSLCACertsA newline separated list of CA certificate to use during SSL client authentication.
SSLCipherStrengthThe minimum cipher strength used for bulk encryption.
SSLEnabledCipherSuitesThe cipher suite to be used in an SSL negotiation.
SSLEnabledProtocolsUsed to enable/disable the supported security protocols.
SSLEnableRenegotiationWhether the renegotiation_info SSL extension is supported.
SSLIncludeCertChainWhether the entire certificate chain is included in the SSLServerAuthentication event.
SSLKeyLogFileThe location of a file where per-session secrets are written for debugging purposes.
SSLNegotiatedCipherReturns the negotiated ciphersuite.
SSLNegotiatedCipherStrengthReturns the negotiated ciphersuite strength.
SSLNegotiatedCipherSuiteReturns the negotiated ciphersuite.
SSLNegotiatedKeyExchangeReturns the negotiated key exchange algorithm.
SSLNegotiatedKeyExchangeStrengthReturns the negotiated key exchange algorithm strength.
SSLNegotiatedVersionReturns the negotiated protocol version.
SSLSecurityFlagsFlags that control certificate verification.
SSLServerCACertsA newline separated list of CA certificate to use during SSL server certificate validation.
TLS12SignatureAlgorithmsDefines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal.
TLS12SupportedGroupsThe supported groups for ECC.
TLS13KeyShareGroupsThe groups for which to pregenerate key shares.
TLS13SignatureAlgorithmsThe allowed certificate signature algorithms.
TLS13SupportedGroupsThe supported groups for (EC)DHE key exchange.
AbsoluteTimeoutDetermines whether timeouts are inactivity timeouts or absolute timeouts.
FirewallDataUsed to send extra data to the firewall.
InBufferSizeThe size in bytes of the incoming queue of the socket.
OutBufferSizeThe size in bytes of the outgoing queue of the socket.

ArgumentCount Property (AMQPClassic Class)

The number of records in the Argument arrays.

Syntax

ANSI (Cross Platform)
int GetArgumentCount();
int SetArgumentCount(int iArgumentCount); Unicode (Windows) INT GetArgumentCount();
INT SetArgumentCount(INT iArgumentCount);
int ipworksmq_amqpclassic_getargumentcount(void* lpObj);
int ipworksmq_amqpclassic_setargumentcount(void* lpObj, int iArgumentCount);
int GetArgumentCount();
int SetArgumentCount(int iArgumentCount);

Default Value

0

Remarks

This property controls the size of the following arrays:

The array indices start at 0 and end at ArgumentCount - 1.

This property is not available at design time.

Data Type

Integer

ArgumentName Property (AMQPClassic Class)

The table property's name.

Syntax

ANSI (Cross Platform)
char* GetArgumentName(int iArgumentIndex);
int SetArgumentName(int iArgumentIndex, const char* lpszArgumentName); Unicode (Windows) LPWSTR GetArgumentName(INT iArgumentIndex);
INT SetArgumentName(INT iArgumentIndex, LPCWSTR lpszArgumentName);
char* ipworksmq_amqpclassic_getargumentname(void* lpObj, int argumentindex);
int ipworksmq_amqpclassic_setargumentname(void* lpObj, int argumentindex, const char* lpszArgumentName);
QString GetArgumentName(int iArgumentIndex);
int SetArgumentName(int iArgumentIndex, QString qsArgumentName);

Default Value

""

Remarks

The table field's name.

This property specifies the table field's name. The name must be an ASCII string that:

  • Starts with an ASCII letter, $, or $ character.
  • Only contains ASCII letters, digits, underscores, $, and $ characters.
  • Is unique among all sibling table field ArgumentNames.
  • Is no longer than 128 characters.

The ArgumentIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ArgumentCount property.

This property is not available at design time.

Data Type

String

ArgumentValue Property (AMQPClassic Class)

The table property's value.

Syntax

ANSI (Cross Platform)
char* GetArgumentValue(int iArgumentIndex);
int SetArgumentValue(int iArgumentIndex, const char* lpszArgumentValue); Unicode (Windows) LPWSTR GetArgumentValue(INT iArgumentIndex);
INT SetArgumentValue(INT iArgumentIndex, LPCWSTR lpszArgumentValue);
char* ipworksmq_amqpclassic_getargumentvalue(void* lpObj, int argumentindex);
int ipworksmq_amqpclassic_setargumentvalue(void* lpObj, int argumentindex, const char* lpszArgumentValue);
QString GetArgumentValue(int iArgumentIndex);
int SetArgumentValue(int iArgumentIndex, QString qsArgumentValue);

Default Value

""

Remarks

The table field's value.

This property specifies the table field's value.

The ArgumentIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ArgumentCount property.

This property is not available at design time.

Data Type

String

ArgumentValueType Property (AMQPClassic Class)

The table property's value type.

Syntax

ANSI (Cross Platform)
int GetArgumentValueType(int iArgumentIndex);
int SetArgumentValueType(int iArgumentIndex, int iArgumentValueType); Unicode (Windows) INT GetArgumentValueType(INT iArgumentIndex);
INT SetArgumentValueType(INT iArgumentIndex, INT iArgumentValueType);

Possible Values

FVT_BOOLEAN(0), 
FVT_BYTE(1),
FVT_UBYTE(2),
FVT_SHORT(3),
FVT_USHORT(4),
FVT_INT(5),
FVT_UINT(6),
FVT_LONG(7),
FVT_ULONG(8),
FVT_FLOAT(9),
FVT_DOUBLE(10),
FVT_DECIMAL(11),
FVT_SSTRING(12),
FVT_STRING(13),
FVT_ARRAY(14),
FVT_TIMESTAMP(15),
FVT_TABLE(16),
FVT_NULL(17)
int ipworksmq_amqpclassic_getargumentvaluetype(void* lpObj, int argumentindex);
int ipworksmq_amqpclassic_setargumentvaluetype(void* lpObj, int argumentindex, int iArgumentValueType);
int GetArgumentValueType(int iArgumentIndex);
int SetArgumentValueType(int iArgumentIndex, int iArgumentValueType);

Default Value

17

Remarks

The table field's value type.

This property specifies the table field's value type (and thus, the format of the data in the ArgumentValue property). Acceptable value types are:

Value Type JSON Value TypeDescriptionValue Format
fvtBoolean (0) boolean Boolean "True" or "False"
fvtByte (1) byte Byte -128 to 127
fvtUbyte (2) ubyte Unsigned byte 0 to 255
fvtShort (3) short Short -32768 to 32767
fvtUshort (4) ushort Unsigned short 0 to 65535
fvtInt (5) int Integer -2147483648 to 2147483647
fvtUint (6) uint Unsigned integer 0 to 4294967295
fvtLong (7) long Long -9223372036854775808 to 9223372036854775807
fvtUlong (8) ulong Unsigned long 0 to 18446744073709551615
fvtFloat (9) float Float IEEE 754 32-bit floating point number
fvtDouble (10) double Double IEEE 754 64-bit floating point number
fvtDecimal (11) decimal Decimal Hex-encoded byte string
fvtSstring (12) sstring Short string UTF-8 string data, limited to 255 bytes; may not contain null bytes (\0)
fvtString (13) string String String data
fvtArray (14) array Array JSON array of type-value pairs
fvtTimestamp (15) timestamp Timestamp Number of milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC)
fvtTable (16) table Table JSON object containing name-type-value tuples
fvtNull (17 - default)null Null N/A (ArgumentValue is ignored)

Note: The fvtUlong (8) and fvtSstring (12) value types are not supported when the RabbitMQCompatible configuration setting is enabled.

For the fvtArray (14) value type, the ArgumentValue should be specified as a JSON array of type-value pairs; for example:

[
  { "type": "int", "value": 23 },
  { "type": "int", "value": -52 },
  { "type": "int", "value": 153325 }
]

For the fvtTable (16) value type, the ArgumentValue should be specified as a JSON object containing name-type-value tuples; for example:

{
  { "name": "Test1", "type": "long", "value": 12345678901234 },
  { "name": "Test2", "type": "boolean", "value": "false" },
  { "name": "Test3", "type": "string", "value": "This is a test." }
}

Notes regarding fvtArray (14) and fvtTable (16) type ArgumentValues:

  • All "type" fields in the JSON content must be set to one of the value types in the table above.
  • For fvtTable (16) type ArgumentValues, all "name" fields must adhere to the rules described by the ArgumentKey documentation.
  • Nesting and mixing multiple levels of arrays and tables in the JSON is allowed.

The ArgumentIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ArgumentCount property.

This property is not available at design time.

Data Type

Integer

AuthScheme Property (AMQPClassic Class)

The authentication scheme to use when connecting.

Syntax

ANSI (Cross Platform)
int GetAuthScheme();
int SetAuthScheme(int iAuthScheme); Unicode (Windows) INT GetAuthScheme();
INT SetAuthScheme(INT iAuthScheme);

Possible Values

SM_NONE(0), 
SM_SASLANONYMOUS(1),
SM_SASLPLAIN(2),
SM_SASLEXTERNAL(3)
int ipworksmq_amqpclassic_getauthscheme(void* lpObj);
int ipworksmq_amqpclassic_setauthscheme(void* lpObj, int iAuthScheme);
int GetAuthScheme();
int SetAuthScheme(int iAuthScheme);

Default Value

2

Remarks

This property controls what authentication scheme the class should use when connecting to the remote host.

Valid values are:

  • smNone (0)
  • smSASLAnonymous (1)
  • smSASLPlain (2) - Default
  • smSASLExternal (3)

This property is not available at design time.

Data Type

Integer

ChannelCount Property (AMQPClassic Class)

The number of records in the Channel arrays.

Syntax

ANSI (Cross Platform)
int GetChannelCount();

Unicode (Windows)
INT GetChannelCount();
int ipworksmq_amqpclassic_getchannelcount(void* lpObj);
int GetChannelCount();

Default Value

0

Remarks

This property controls the size of the following arrays:

The array indices start at 0 and end at ChannelCount - 1.

This property is read-only and not available at design time.

Data Type

Integer

ChannelAccept Property (AMQPClassic Class)

Whether the channel is currently accepting new messages from the server.

Syntax

ANSI (Cross Platform)
int GetChannelAccept(int iChannelIndex);

Unicode (Windows)
BOOL GetChannelAccept(INT iChannelIndex);
int ipworksmq_amqpclassic_getchannelaccept(void* lpObj, int channelindex);
bool GetChannelAccept(int iChannelIndex);

Default Value

TRUE

Remarks

Whether the channel is currently accepting new messages from the server.

This property reflects whether the channel is currently accepting new messages from the server. When the channel is created, this property is True by default.

The SetChannelAccept method can be used to disable and re-enable message acceptance at any time; refer to that method for more information.

The ChannelIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ChannelCount property.

This property is read-only and not available at design time.

Data Type

Boolean

ChannelMode Property (AMQPClassic Class)

What mode the channel is operating in.

Syntax

ANSI (Cross Platform)
int GetChannelMode(int iChannelIndex);

Unicode (Windows)
INT GetChannelMode(INT iChannelIndex);

Possible Values

CMT_NORMAL(0), 
CMT_TRANSACTIONAL(1),
CMT_PUBLISH_CONFIRMS(2)
int ipworksmq_amqpclassic_getchannelmode(void* lpObj, int channelindex);
int GetChannelMode(int iChannelIndex);

Default Value

0

Remarks

What mode the channel is operating in.

This property reflects what mode the channel is operating in. Possible values are:

  • cmtNormal (0 - default): Normal mode.
  • cmtTransactional (1): Transaction mode.
  • cmtPublishConfirms (2): Publish confirmations mode.

All channels are in normal mode when they are created; there's nothing special about a channel in normal mode.

Channels can be put in transaction mode using the EnableTransactionMode method. While a channel is in transaction mode, all messages published and acknowledgements sent over it will be part of a transaction, and the server will wait to process them until the transaction is either committed or rolled back.

Channels can be put in publish confirmations mode using the EnablePublishConfirms method. While a channel is in publish confirmations mode, the server will acknowledge each message published by the class. The class will wait to fire the MessageOut event until it receives this acknowledgement. (Note that this mode is only available when the RabbitMQCompatible configuration setting is enabled.)

Note: Switching a channel to transaction or publish confirmations mode is a permanent action; the channel will then remain in that mode for the remainder of its lifetime.

The ChannelIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ChannelCount property.

This property is read-only and not available at design time.

Data Type

Integer

ChannelName Property (AMQPClassic Class)

The name of the channel.

Syntax

ANSI (Cross Platform)
char* GetChannelName(int iChannelIndex);

Unicode (Windows)
LPWSTR GetChannelName(INT iChannelIndex);
char* ipworksmq_amqpclassic_getchannelname(void* lpObj, int channelindex);
QString GetChannelName(int iChannelIndex);

Default Value

""

Remarks

The name of the channel.

This property reflects the name of the channel.

The ChannelIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ChannelCount property.

This property is read-only and not available at design time.

Data Type

String

ChannelReadyToSend Property (AMQPClassic Class)

Whether the channel is ready to send a message.

Syntax

ANSI (Cross Platform)
int GetChannelReadyToSend(int iChannelIndex);

Unicode (Windows)
BOOL GetChannelReadyToSend(INT iChannelIndex);
int ipworksmq_amqpclassic_getchannelreadytosend(void* lpObj, int channelindex);
bool GetChannelReadyToSend(int iChannelIndex);

Default Value

TRUE

Remarks

Whether the channel is ready to send a message.

This property reflects whether the channel is currently ready to send a message or not.

The ChannelIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ChannelCount property.

This property is read-only and not available at design time.

Data Type

Boolean

ClientPropertyCount Property (AMQPClassic Class)

The number of records in the ClientProperty arrays.

Syntax

ANSI (Cross Platform)
int GetClientPropertyCount();
int SetClientPropertyCount(int iClientPropertyCount); Unicode (Windows) INT GetClientPropertyCount();
INT SetClientPropertyCount(INT iClientPropertyCount);
int ipworksmq_amqpclassic_getclientpropertycount(void* lpObj);
int ipworksmq_amqpclassic_setclientpropertycount(void* lpObj, int iClientPropertyCount);
int GetClientPropertyCount();
int SetClientPropertyCount(int iClientPropertyCount);

Default Value

0

Remarks

This property controls the size of the following arrays:

The array indices start at 0 and end at ClientPropertyCount - 1.

This property is not available at design time.

Data Type

Integer

ClientPropertyName Property (AMQPClassic Class)

The table property's name.

Syntax

ANSI (Cross Platform)
char* GetClientPropertyName(int iClientPropertyIndex);
int SetClientPropertyName(int iClientPropertyIndex, const char* lpszClientPropertyName); Unicode (Windows) LPWSTR GetClientPropertyName(INT iClientPropertyIndex);
INT SetClientPropertyName(INT iClientPropertyIndex, LPCWSTR lpszClientPropertyName);
char* ipworksmq_amqpclassic_getclientpropertyname(void* lpObj, int clientpropertyindex);
int ipworksmq_amqpclassic_setclientpropertyname(void* lpObj, int clientpropertyindex, const char* lpszClientPropertyName);
QString GetClientPropertyName(int iClientPropertyIndex);
int SetClientPropertyName(int iClientPropertyIndex, QString qsClientPropertyName);

Default Value

""

Remarks

The table field's name.

This property specifies the table field's name. The name must be an ASCII string that:

  • Starts with an ASCII letter, $, or $ character.
  • Only contains ASCII letters, digits, underscores, $, and $ characters.
  • Is unique among all sibling table field ClientPropertyNames.
  • Is no longer than 128 characters.

The ClientPropertyIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ClientPropertyCount property.

This property is not available at design time.

Data Type

String

ClientPropertyValue Property (AMQPClassic Class)

The table property's value.

Syntax

ANSI (Cross Platform)
char* GetClientPropertyValue(int iClientPropertyIndex);
int SetClientPropertyValue(int iClientPropertyIndex, const char* lpszClientPropertyValue); Unicode (Windows) LPWSTR GetClientPropertyValue(INT iClientPropertyIndex);
INT SetClientPropertyValue(INT iClientPropertyIndex, LPCWSTR lpszClientPropertyValue);
char* ipworksmq_amqpclassic_getclientpropertyvalue(void* lpObj, int clientpropertyindex);
int ipworksmq_amqpclassic_setclientpropertyvalue(void* lpObj, int clientpropertyindex, const char* lpszClientPropertyValue);
QString GetClientPropertyValue(int iClientPropertyIndex);
int SetClientPropertyValue(int iClientPropertyIndex, QString qsClientPropertyValue);

Default Value

""

Remarks

The table field's value.

This property specifies the table field's value.

The ClientPropertyIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ClientPropertyCount property.

This property is not available at design time.

Data Type

String

ClientPropertyValueType Property (AMQPClassic Class)

The table property's value type.

Syntax

ANSI (Cross Platform)
int GetClientPropertyValueType(int iClientPropertyIndex);
int SetClientPropertyValueType(int iClientPropertyIndex, int iClientPropertyValueType); Unicode (Windows) INT GetClientPropertyValueType(INT iClientPropertyIndex);
INT SetClientPropertyValueType(INT iClientPropertyIndex, INT iClientPropertyValueType);

Possible Values

FVT_BOOLEAN(0), 
FVT_BYTE(1),
FVT_UBYTE(2),
FVT_SHORT(3),
FVT_USHORT(4),
FVT_INT(5),
FVT_UINT(6),
FVT_LONG(7),
FVT_ULONG(8),
FVT_FLOAT(9),
FVT_DOUBLE(10),
FVT_DECIMAL(11),
FVT_SSTRING(12),
FVT_STRING(13),
FVT_ARRAY(14),
FVT_TIMESTAMP(15),
FVT_TABLE(16),
FVT_NULL(17)
int ipworksmq_amqpclassic_getclientpropertyvaluetype(void* lpObj, int clientpropertyindex);
int ipworksmq_amqpclassic_setclientpropertyvaluetype(void* lpObj, int clientpropertyindex, int iClientPropertyValueType);
int GetClientPropertyValueType(int iClientPropertyIndex);
int SetClientPropertyValueType(int iClientPropertyIndex, int iClientPropertyValueType);

Default Value

17

Remarks

The table field's value type.

This property specifies the table field's value type (and thus, the format of the data in the ClientPropertyValue property). Acceptable value types are:

Value Type JSON Value TypeDescriptionValue Format
fvtBoolean (0) boolean Boolean "True" or "False"
fvtByte (1) byte Byte -128 to 127
fvtUbyte (2) ubyte Unsigned byte 0 to 255
fvtShort (3) short Short -32768 to 32767
fvtUshort (4) ushort Unsigned short 0 to 65535
fvtInt (5) int Integer -2147483648 to 2147483647
fvtUint (6) uint Unsigned integer 0 to 4294967295
fvtLong (7) long Long -9223372036854775808 to 9223372036854775807
fvtUlong (8) ulong Unsigned long 0 to 18446744073709551615
fvtFloat (9) float Float IEEE 754 32-bit floating point number
fvtDouble (10) double Double IEEE 754 64-bit floating point number
fvtDecimal (11) decimal Decimal Hex-encoded byte string
fvtSstring (12) sstring Short string UTF-8 string data, limited to 255 bytes; may not contain null bytes (\0)
fvtString (13) string String String data
fvtArray (14) array Array JSON array of type-value pairs
fvtTimestamp (15) timestamp Timestamp Number of milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC)
fvtTable (16) table Table JSON object containing name-type-value tuples
fvtNull (17 - default)null Null N/A (ClientPropertyValue is ignored)

Note: The fvtUlong (8) and fvtSstring (12) value types are not supported when the RabbitMQCompatible configuration setting is enabled.

For the fvtArray (14) value type, the ClientPropertyValue should be specified as a JSON array of type-value pairs; for example:

[
  { "type": "int", "value": 23 },
  { "type": "int", "value": -52 },
  { "type": "int", "value": 153325 }
]

For the fvtTable (16) value type, the ClientPropertyValue should be specified as a JSON object containing name-type-value tuples; for example:

{
  { "name": "Test1", "type": "long", "value": 12345678901234 },
  { "name": "Test2", "type": "boolean", "value": "false" },
  { "name": "Test3", "type": "string", "value": "This is a test." }
}

Notes regarding fvtArray (14) and fvtTable (16) type ClientPropertyValues:

  • All "type" fields in the JSON content must be set to one of the value types in the table above.
  • For fvtTable (16) type ClientPropertyValues, all "name" fields must adhere to the rules described by the ClientPropertyKey documentation.
  • Nesting and mixing multiple levels of arrays and tables in the JSON is allowed.

The ClientPropertyIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ClientPropertyCount property.

This property is not available at design time.

Data Type

Integer

Connected Property (AMQPClassic Class)

This property triggers a connection or disconnection.

Syntax

ANSI (Cross Platform)
int GetConnected();
int SetConnected(int bConnected); Unicode (Windows) BOOL GetConnected();
INT SetConnected(BOOL bConnected);
int ipworksmq_amqpclassic_getconnected(void* lpObj);
int ipworksmq_amqpclassic_setconnected(void* lpObj, int bConnected);
bool GetConnected();
int SetConnected(bool bConnected);

Default Value

FALSE

Remarks

This property triggers a connection or disconnection. Setting this property to True makes the class attempt to connect to the host identified by the RemoteHost property. If successful, after the connection is achieved, the value of the property changes to True and the Connected event is fired.

Setting this property to False closes the connection. How and when the connection is closed is controlled by the Linger property.

Note: It is recommended to use the Connect or Disconnect method instead of setting this property.

This property is not available at design time.

Data Type

Boolean

FirewallAutoDetect Property (AMQPClassic Class)

This property tells the class whether or not to automatically detect and use firewall system settings, if available.

Syntax

ANSI (Cross Platform)
int GetFirewallAutoDetect();
int SetFirewallAutoDetect(int bFirewallAutoDetect); Unicode (Windows) BOOL GetFirewallAutoDetect();
INT SetFirewallAutoDetect(BOOL bFirewallAutoDetect);
int ipworksmq_amqpclassic_getfirewallautodetect(void* lpObj);
int ipworksmq_amqpclassic_setfirewallautodetect(void* lpObj, int bFirewallAutoDetect);
bool GetFirewallAutoDetect();
int SetFirewallAutoDetect(bool bFirewallAutoDetect);

Default Value

FALSE

Remarks

This property tells the class whether or not to automatically detect and use firewall system settings, if available.

Data Type

Boolean

FirewallType Property (AMQPClassic Class)

This property determines the type of firewall to connect through.

Syntax

ANSI (Cross Platform)
int GetFirewallType();
int SetFirewallType(int iFirewallType); Unicode (Windows) INT GetFirewallType();
INT SetFirewallType(INT iFirewallType);

Possible Values

FW_NONE(0), 
FW_TUNNEL(1),
FW_SOCKS4(2),
FW_SOCKS5(3),
FW_SOCKS4A(10)
int ipworksmq_amqpclassic_getfirewalltype(void* lpObj);
int ipworksmq_amqpclassic_setfirewalltype(void* lpObj, int iFirewallType);
int GetFirewallType();
int SetFirewallType(int iFirewallType);

Default Value

0

Remarks

This property determines the type of firewall to connect through. The applicable values are as follows:

fwNone (0)No firewall (default setting).
fwTunnel (1)Connect through a tunneling proxy. FirewallPort is set to 80.
fwSOCKS4 (2)Connect through a SOCKS4 Proxy. FirewallPort is set to 1080.
fwSOCKS5 (3)Connect through a SOCKS5 Proxy. FirewallPort is set to 1080.
fwSOCKS4A (10)Connect through a SOCKS4A Proxy. FirewallPort is set to 1080.

Data Type

Integer

FirewallHost Property (AMQPClassic Class)

This property contains the name or IP address of firewall (optional).

Syntax

ANSI (Cross Platform)
char* GetFirewallHost();
int SetFirewallHost(const char* lpszFirewallHost); Unicode (Windows) LPWSTR GetFirewallHost();
INT SetFirewallHost(LPCWSTR lpszFirewallHost);
char* ipworksmq_amqpclassic_getfirewallhost(void* lpObj);
int ipworksmq_amqpclassic_setfirewallhost(void* lpObj, const char* lpszFirewallHost);
QString GetFirewallHost();
int SetFirewallHost(QString qsFirewallHost);

Default Value

""

Remarks

This property contains the name or IP address of firewall (optional). If a FirewallHost is given, the requested connections will be authenticated through the specified firewall when connecting.

If this property is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, the class fails with an error.

Data Type

String

FirewallPassword Property (AMQPClassic Class)

This property contains a password if authentication is to be used when connecting through the firewall.

Syntax

ANSI (Cross Platform)
char* GetFirewallPassword();
int SetFirewallPassword(const char* lpszFirewallPassword); Unicode (Windows) LPWSTR GetFirewallPassword();
INT SetFirewallPassword(LPCWSTR lpszFirewallPassword);
char* ipworksmq_amqpclassic_getfirewallpassword(void* lpObj);
int ipworksmq_amqpclassic_setfirewallpassword(void* lpObj, const char* lpszFirewallPassword);
QString GetFirewallPassword();
int SetFirewallPassword(QString qsFirewallPassword);

Default Value

""

Remarks

This property contains a password if authentication is to be used when connecting through the firewall. If FirewallHost is specified, the FirewallUser and FirewallPassword properties are used to connect and authenticate to the given firewall. If the authentication fails, the class fails with an error.

Data Type

String

FirewallPort Property (AMQPClassic Class)

This property contains the transmission control protocol (TCP) port for the firewall Host .

Syntax

ANSI (Cross Platform)
int GetFirewallPort();
int SetFirewallPort(int iFirewallPort); Unicode (Windows) INT GetFirewallPort();
INT SetFirewallPort(INT iFirewallPort);
int ipworksmq_amqpclassic_getfirewallport(void* lpObj);
int ipworksmq_amqpclassic_setfirewallport(void* lpObj, int iFirewallPort);
int GetFirewallPort();
int SetFirewallPort(int iFirewallPort);

Default Value

0

Remarks

This property contains the transmission control protocol (TCP) port for the firewall FirewallHost. See the description of the FirewallHost property for details.

Note: This property is set automatically when FirewallType is set to a valid value. See the description of the FirewallType property for details.

Data Type

Integer

FirewallUser Property (AMQPClassic Class)

This property contains a user name if authentication is to be used connecting through a firewall.

Syntax

ANSI (Cross Platform)
char* GetFirewallUser();
int SetFirewallUser(const char* lpszFirewallUser); Unicode (Windows) LPWSTR GetFirewallUser();
INT SetFirewallUser(LPCWSTR lpszFirewallUser);
char* ipworksmq_amqpclassic_getfirewalluser(void* lpObj);
int ipworksmq_amqpclassic_setfirewalluser(void* lpObj, const char* lpszFirewallUser);
QString GetFirewallUser();
int SetFirewallUser(QString qsFirewallUser);

Default Value

""

Remarks

This property contains a user name if authentication is to be used connecting through a firewall. If the FirewallHost is specified, this property and FirewallPassword properties are used to connect and authenticate to the given Firewall. If the authentication fails, the class fails with an error.

Data Type

String

Heartbeat Property (AMQPClassic Class)

The heartbeat timeout value.

Syntax

ANSI (Cross Platform)
int GetHeartbeat();
int SetHeartbeat(int iHeartbeat); Unicode (Windows) INT GetHeartbeat();
INT SetHeartbeat(INT iHeartbeat);
int ipworksmq_amqpclassic_getheartbeat(void* lpObj);
int ipworksmq_amqpclassic_setheartbeat(void* lpObj, int iHeartbeat);
int GetHeartbeat();
int SetHeartbeat(int iHeartbeat);

Default Value

0

Remarks

This property specifies the heartbeat timeout value, in seconds. Heartbeats are disabled if set to 0 (default).

Before connecting, this property can be set to indicate the desired heartbeat timeout value. During the connection process, the class and the server will compare their desired heartbeat values and choose the lower one.

Once connected, this property will reflect the agreed-upon heartbeat value. While the connection is idle, heartbeats are sent by both the class and the server approximately once every (Heartbeat / 2) seconds. If either side has not received a heartbeat (or other transmission) for ~Heartbeat seconds, it will consider the other side unreachable and close the connection.

This setting cannot be changed while connected.

This property is not available at design time.

Data Type

Integer

IncomingMessageCount Property (AMQPClassic Class)

The number of records in the IncomingMessage arrays.

Syntax

ANSI (Cross Platform)
int GetIncomingMessageCount();

Unicode (Windows)
INT GetIncomingMessageCount();
int ipworksmq_amqpclassic_getincomingmessagecount(void* lpObj);
int GetIncomingMessageCount();

Default Value

0

Remarks

This property controls the size of the following arrays:

The array indices start at 0 and end at IncomingMessageCount - 1.

This property is read-only and not available at design time.

Data Type

Integer

IncomingMessageAppId Property (AMQPClassic Class)

The Id of the application that created the message.

Syntax

ANSI (Cross Platform)
char* GetIncomingMessageAppId(int iIncomingMessageIndex);

Unicode (Windows)
LPWSTR GetIncomingMessageAppId(INT iIncomingMessageIndex);
char* ipworksmq_amqpclassic_getincomingmessageappid(void* lpObj, int incomingmessageindex);
QString GetIncomingMessageAppId(int iIncomingMessageIndex);

Default Value

""

Remarks

The Id of the application that created the message.

This property holds the Id of the application that created the message. It may be empty if the message does not have an application Id set.

This value must be specified as a string no longer than 255 characters.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

IncomingMessageBody Property (AMQPClassic Class)

The message body.

Syntax

ANSI (Cross Platform)
int GetIncomingMessageBody(int iIncomingMessageIndex, char* &lpIncomingMessageBody, int &lenIncomingMessageBody);

Unicode (Windows)
INT GetIncomingMessageBody(INT iIncomingMessageIndex, LPSTR &lpIncomingMessageBody, INT &lenIncomingMessageBody);
int ipworksmq_amqpclassic_getincomingmessagebody(void* lpObj, int incomingmessageindex, char** lpIncomingMessageBody, int* lenIncomingMessageBody);
QByteArray GetIncomingMessageBody(int iIncomingMessageIndex);

Default Value

""

Remarks

The message body.

This property holds the body of the message. It may be empty.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

Binary String

IncomingMessageChannelName Property (AMQPClassic Class)

The name of the channel the message is associated with.

Syntax

ANSI (Cross Platform)
char* GetIncomingMessageChannelName(int iIncomingMessageIndex);

Unicode (Windows)
LPWSTR GetIncomingMessageChannelName(INT iIncomingMessageIndex);
char* ipworksmq_amqpclassic_getincomingmessagechannelname(void* lpObj, int incomingmessageindex);
QString GetIncomingMessageChannelName(int iIncomingMessageIndex);

Default Value

""

Remarks

The name of the channel the message is associated with.

This property reflects the name of the channel which the message is associated with; it is populated automatically by the class.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

IncomingMessageContentEncoding Property (AMQPClassic Class)

The content encoding of the message's body.

Syntax

ANSI (Cross Platform)
char* GetIncomingMessageContentEncoding(int iIncomingMessageIndex);

Unicode (Windows)
LPWSTR GetIncomingMessageContentEncoding(INT iIncomingMessageIndex);
char* ipworksmq_amqpclassic_getincomingmessagecontentencoding(void* lpObj, int incomingmessageindex);
QString GetIncomingMessageContentEncoding(int iIncomingMessageIndex);

Default Value

""

Remarks

The content encoding of the message's body.

This property holds the content encoding of the message's body. It may be empty if the message does not have a content encoding set.

This value must be specified as a string no longer than 255 characters.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

IncomingMessageContentType Property (AMQPClassic Class)

The content type (MIME type) of the message's body.

Syntax

ANSI (Cross Platform)
char* GetIncomingMessageContentType(int iIncomingMessageIndex);

Unicode (Windows)
LPWSTR GetIncomingMessageContentType(INT iIncomingMessageIndex);
char* ipworksmq_amqpclassic_getincomingmessagecontenttype(void* lpObj, int incomingmessageindex);
QString GetIncomingMessageContentType(int iIncomingMessageIndex);

Default Value

""

Remarks

The content type (MIME type) of the message's body.

This property holds the content type (MIME type) of the message's body. It may be empty if the message does not have a content type set.

This value must be specified as a string no longer than 255 characters.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

IncomingMessageCorrelationId Property (AMQPClassic Class)

The correlation Id of the message.

Syntax

ANSI (Cross Platform)
char* GetIncomingMessageCorrelationId(int iIncomingMessageIndex);

Unicode (Windows)
LPWSTR GetIncomingMessageCorrelationId(INT iIncomingMessageIndex);
char* ipworksmq_amqpclassic_getincomingmessagecorrelationid(void* lpObj, int incomingmessageindex);
QString GetIncomingMessageCorrelationId(int iIncomingMessageIndex);

Default Value

""

Remarks

The correlation Id of the message.

This property holds the correlation Id of the message. It may be empty if the message does not have a correlation Id set.

This value must be specified as a string no longer than 255 characters.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

IncomingMessageDeliveryMode Property (AMQPClassic Class)

The delivery mode of the message.

Syntax

ANSI (Cross Platform)
int GetIncomingMessageDeliveryMode(int iIncomingMessageIndex);

Unicode (Windows)
INT GetIncomingMessageDeliveryMode(INT iIncomingMessageIndex);
int ipworksmq_amqpclassic_getincomingmessagedeliverymode(void* lpObj, int incomingmessageindex);
int GetIncomingMessageDeliveryMode(int iIncomingMessageIndex);

Default Value

0

Remarks

The delivery mode of the message.

This property holds the delivery mode of the message; possible values are:

  • 0: Unspecified.
  • 1: Non-persistent; the message may be lost if the server encounters an error.
  • 2: Persistent; the message will not be lost, even in case of server errors.

The default is 0, which indicates that the message does not have an explicit delivery mode set.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

Integer

IncomingMessageExpiration Property (AMQPClassic Class)

The time-to-live value for this message.

Syntax

ANSI (Cross Platform)
char* GetIncomingMessageExpiration(int iIncomingMessageIndex);

Unicode (Windows)
LPWSTR GetIncomingMessageExpiration(INT iIncomingMessageIndex);
char* ipworksmq_amqpclassic_getincomingmessageexpiration(void* lpObj, int incomingmessageindex);
QString GetIncomingMessageExpiration(int iIncomingMessageIndex);

Default Value

""

Remarks

The time-to-live value for this message.

This property specifies the time-to-live (TTL) value, in milliseconds, for this message. It may be -1 if this message does not have a TTL.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

IncomingMessageHeaders Property (AMQPClassic Class)

Headers associated with the message.

Syntax

ANSI (Cross Platform)
char* GetIncomingMessageHeaders(int iIncomingMessageIndex);

Unicode (Windows)
LPWSTR GetIncomingMessageHeaders(INT iIncomingMessageIndex);
char* ipworksmq_amqpclassic_getincomingmessageheaders(void* lpObj, int incomingmessageindex);
QString GetIncomingMessageHeaders(int iIncomingMessageIndex);

Default Value

""

Remarks

Headers associated with the message.

This property holds additional Headers associated with the message. It may be empty if the message does not have any headers set.

This property must be specified as a JSON object containing name-type-value tuples; for example:

{
  { "name": "Header1", "type": "long", "value": 12345678901234 },
  { "name": "Header2", "type": "boolean", "value": "false" },
  { "name": "Header3", "type": "string", "value": "This is a test." }
}

All "name" values must be ASCII strings that:

  • Start with an ASCII letter, $, or $ character.
  • Only contain ASCII letters, digits, underscores, $, and $ characters.
  • Are unique among their siblings.
  • Are no longer than 128 characters.

The following table describes all valid "type" values, and how to format the "value" field for each:

JSON Value TypeDescriptionValue Format
boolean Boolean "True" or "False"
byte Byte -128 to 127
ubyte Unsigned byte 0 to 255
short Short -32768 to 32767
ushort Unsigned short 0 to 65535
int Integer -2147483648 to 2147483647
uint Unsigned integer 0 to 4294967295
long Long -9223372036854775808 to 9223372036854775807
ulong Unsigned long 0 to 18446744073709551615
float Float IEEE 754 32-bit floating point number
double Double IEEE 754 64-bit floating point number
decimal Decimal Hex-encoded byte string
sstring Short string UTF-8 string data, limited to 255 bytes; may not contain null bytes (\0)
string String String data
array Array JSON array of type-value pairs
timestamp Timestamp Number of milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC)
table Table JSON object containing name-type-value tuples
null Null N/A (IncomingMessageValue is ignored)

Note: The ulong and sstring value types are not supported when the RabbitMQCompatible configuration setting is enabled.

Headers of the table type should be specified in the same manner as shown above, while headers of the array type should be specified as a JSON array of type-value pairs; for example:

[
  { "type": "int", "value": 23 },
  { "type": "int", "value": -52 },
  { "type": "int", "value": 153325 }
]

Nesting and mixing multiple levels of arrays and tables is allowed.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

IncomingMessageId Property (AMQPClassic Class)

The unique Id of the message.

Syntax

ANSI (Cross Platform)
char* GetIncomingMessageId(int iIncomingMessageIndex);

Unicode (Windows)
LPWSTR GetIncomingMessageId(INT iIncomingMessageIndex);
char* ipworksmq_amqpclassic_getincomingmessageid(void* lpObj, int incomingmessageindex);
QString GetIncomingMessageId(int iIncomingMessageIndex);

Default Value

""

Remarks

The unique Id of the message.

This property holds the unique Id of the message. It may be empty if the message does not have a unique Id.

This value must be specified as a string no longer than 255 characters.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

IncomingMessagePriority Property (AMQPClassic Class)

The priority of the message.

Syntax

ANSI (Cross Platform)
int GetIncomingMessagePriority(int iIncomingMessageIndex);

Unicode (Windows)
INT GetIncomingMessagePriority(INT iIncomingMessageIndex);
int ipworksmq_amqpclassic_getincomingmessagepriority(void* lpObj, int incomingmessageindex);
int GetIncomingMessagePriority(int iIncomingMessageIndex);

Default Value

0

Remarks

The priority of the message.

This property holds the priority of the message. Valid priority values are 0-9; any other value causes the message to have unspecified priority when sent.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

Integer

IncomingMessageReplyTo Property (AMQPClassic Class)

The address to send replies to for the message.

Syntax

ANSI (Cross Platform)
char* GetIncomingMessageReplyTo(int iIncomingMessageIndex);

Unicode (Windows)
LPWSTR GetIncomingMessageReplyTo(INT iIncomingMessageIndex);
char* ipworksmq_amqpclassic_getincomingmessagereplyto(void* lpObj, int incomingmessageindex);
QString GetIncomingMessageReplyTo(int iIncomingMessageIndex);

Default Value

""

Remarks

The address to send replies to for the message.

This property specifies the address to send replies to for the message. It may be empty if the message does not have a specific reply-to address set.

This value must be specified as a string no longer than 255 characters.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

IncomingMessageTimestamp Property (AMQPClassic Class)

The message's timestamp.

Syntax

ANSI (Cross Platform)
int64 GetIncomingMessageTimestamp(int iIncomingMessageIndex);

Unicode (Windows)
LONG64 GetIncomingMessageTimestamp(INT iIncomingMessageIndex);
int64 ipworksmq_amqpclassic_getincomingmessagetimestamp(void* lpObj, int incomingmessageindex);
qint64 GetIncomingMessageTimestamp(int iIncomingMessageIndex);

Default Value

0

Remarks

The message's timestamp.

This property holds the timestamp of the message, specified as milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC). It may be less than or equal to 0 (default) if the message does not have a timestamp set.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

Long64

IncomingMessageType Property (AMQPClassic Class)

The message's type.

Syntax

ANSI (Cross Platform)
char* GetIncomingMessageType(int iIncomingMessageIndex);

Unicode (Windows)
LPWSTR GetIncomingMessageType(INT iIncomingMessageIndex);
char* ipworksmq_amqpclassic_getincomingmessagetype(void* lpObj, int incomingmessageindex);
QString GetIncomingMessageType(int iIncomingMessageIndex);

Default Value

""

Remarks

The message's type.

This property holds the type of the message. It may be empty if the message does not have a type set.

This value must be specified as a string no longer than 255 characters.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

IncomingMessageUserId Property (AMQPClassic Class)

The identity of the user responsible for producing the message.

Syntax

ANSI (Cross Platform)
char* GetIncomingMessageUserId(int iIncomingMessageIndex);

Unicode (Windows)
LPWSTR GetIncomingMessageUserId(INT iIncomingMessageIndex);
char* ipworksmq_amqpclassic_getincomingmessageuserid(void* lpObj, int incomingmessageindex);
QString GetIncomingMessageUserId(int iIncomingMessageIndex);

Default Value

""

Remarks

The identity of the user responsible for producing the message.

This property specifies the identity of the user responsible for producing the message. It may be empty if no specific user was responsible for creating the message.

A message's user Id may be used for verification or authentication by the server and/or the final consumer.

This value must be specified as a string no longer than 255 characters.

The IncomingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

LocalHost Property (AMQPClassic Class)

The name of the local host or user-assigned IP interface through which connections are initiated or accepted.

Syntax

ANSI (Cross Platform)
char* GetLocalHost();
int SetLocalHost(const char* lpszLocalHost); Unicode (Windows) LPWSTR GetLocalHost();
INT SetLocalHost(LPCWSTR lpszLocalHost);
char* ipworksmq_amqpclassic_getlocalhost(void* lpObj);
int ipworksmq_amqpclassic_setlocalhost(void* lpObj, const char* lpszLocalHost);
QString GetLocalHost();
int SetLocalHost(QString qsLocalHost);

Default Value

""

Remarks

The LocalHost property contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface.

If the class is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).

NOTE: LocalHost is not persistent. You must always set it in code, and never in the property window.

Data Type

String

LocalPort Property (AMQPClassic Class)

The TCP port in the local host where the class binds.

Syntax

ANSI (Cross Platform)
int GetLocalPort();
int SetLocalPort(int iLocalPort); Unicode (Windows) INT GetLocalPort();
INT SetLocalPort(INT iLocalPort);
int ipworksmq_amqpclassic_getlocalport(void* lpObj);
int ipworksmq_amqpclassic_setlocalport(void* lpObj, int iLocalPort);
int GetLocalPort();
int SetLocalPort(int iLocalPort);

Default Value

0

Remarks

This property must be set before a connection is attempted. It instructs the class to bind to a specific port (or communication endpoint) in the local machine.

Setting this property to 0 (default) enables the system to choose an open port at random. The chosen port will be returned by the LocalPort property after the connection is established.

LocalPort cannot be changed once a connection is made. Any attempt to set this property when a connection is active will generate an error.

This property is useful when trying to connect to services that require a trusted port in the client side.

Data Type

Integer

MessageAppId Property (AMQPClassic Class)

The Id of the application that created the message.

Syntax

ANSI (Cross Platform)
char* GetMessageAppId();
int SetMessageAppId(const char* lpszMessageAppId); Unicode (Windows) LPWSTR GetMessageAppId();
INT SetMessageAppId(LPCWSTR lpszMessageAppId);
char* ipworksmq_amqpclassic_getmessageappid(void* lpObj);
int ipworksmq_amqpclassic_setmessageappid(void* lpObj, const char* lpszMessageAppId);
QString GetMessageAppId();
int SetMessageAppId(QString qsMessageAppId);

Default Value

""

Remarks

The Id of the application that created the message.

This property holds the Id of the application that created the message. It may be empty if the message does not have an application Id set.

This value must be specified as a string no longer than 255 characters.

This property is not available at design time.

Data Type

String

MessageBody Property (AMQPClassic Class)

The message body.

Syntax

ANSI (Cross Platform)
int GetMessageBody(char* &lpMessageBody, int &lenMessageBody);
int SetMessageBody(const char* lpMessageBody, int lenMessageBody); Unicode (Windows) INT GetMessageBody(LPSTR &lpMessageBody, INT &lenMessageBody);
INT SetMessageBody(LPCSTR lpMessageBody, INT lenMessageBody);
int ipworksmq_amqpclassic_getmessagebody(void* lpObj, char** lpMessageBody, int* lenMessageBody);
int ipworksmq_amqpclassic_setmessagebody(void* lpObj, const char* lpMessageBody, int lenMessageBody);
QByteArray GetMessageBody();
int SetMessageBody(QByteArray qbaMessageBody);

Default Value

""

Remarks

The message body.

This property holds the body of the message. It may be empty.

This property is not available at design time.

Data Type

Binary String

MessageChannelName Property (AMQPClassic Class)

The name of the channel the message is associated with.

Syntax

ANSI (Cross Platform)
char* GetMessageChannelName();

Unicode (Windows)
LPWSTR GetMessageChannelName();
char* ipworksmq_amqpclassic_getmessagechannelname(void* lpObj);
QString GetMessageChannelName();

Default Value

""

Remarks

The name of the channel the message is associated with.

This property reflects the name of the channel which the message is associated with; it is populated automatically by the class.

This property is read-only and not available at design time.

Data Type

String

MessageContentEncoding Property (AMQPClassic Class)

The content encoding of the message's body.

Syntax

ANSI (Cross Platform)
char* GetMessageContentEncoding();
int SetMessageContentEncoding(const char* lpszMessageContentEncoding); Unicode (Windows) LPWSTR GetMessageContentEncoding();
INT SetMessageContentEncoding(LPCWSTR lpszMessageContentEncoding);
char* ipworksmq_amqpclassic_getmessagecontentencoding(void* lpObj);
int ipworksmq_amqpclassic_setmessagecontentencoding(void* lpObj, const char* lpszMessageContentEncoding);
QString GetMessageContentEncoding();
int SetMessageContentEncoding(QString qsMessageContentEncoding);

Default Value

""

Remarks

The content encoding of the message's body.

This property holds the content encoding of the message's body. It may be empty if the message does not have a content encoding set.

This value must be specified as a string no longer than 255 characters.

This property is not available at design time.

Data Type

String

MessageContentType Property (AMQPClassic Class)

The content type (MIME type) of the message's body.

Syntax

ANSI (Cross Platform)
char* GetMessageContentType();
int SetMessageContentType(const char* lpszMessageContentType); Unicode (Windows) LPWSTR GetMessageContentType();
INT SetMessageContentType(LPCWSTR lpszMessageContentType);
char* ipworksmq_amqpclassic_getmessagecontenttype(void* lpObj);
int ipworksmq_amqpclassic_setmessagecontenttype(void* lpObj, const char* lpszMessageContentType);
QString GetMessageContentType();
int SetMessageContentType(QString qsMessageContentType);

Default Value

""

Remarks

The content type (MIME type) of the message's body.

This property holds the content type (MIME type) of the message's body. It may be empty if the message does not have a content type set.

This value must be specified as a string no longer than 255 characters.

This property is not available at design time.

Data Type

String

MessageCorrelationId Property (AMQPClassic Class)

The correlation Id of the message.

Syntax

ANSI (Cross Platform)
char* GetMessageCorrelationId();
int SetMessageCorrelationId(const char* lpszMessageCorrelationId); Unicode (Windows) LPWSTR GetMessageCorrelationId();
INT SetMessageCorrelationId(LPCWSTR lpszMessageCorrelationId);
char* ipworksmq_amqpclassic_getmessagecorrelationid(void* lpObj);
int ipworksmq_amqpclassic_setmessagecorrelationid(void* lpObj, const char* lpszMessageCorrelationId);
QString GetMessageCorrelationId();
int SetMessageCorrelationId(QString qsMessageCorrelationId);

Default Value

""

Remarks

The correlation Id of the message.

This property holds the correlation Id of the message. It may be empty if the message does not have a correlation Id set.

This value must be specified as a string no longer than 255 characters.

This property is not available at design time.

Data Type

String

MessageDeliveryMode Property (AMQPClassic Class)

The delivery mode of the message.

Syntax

ANSI (Cross Platform)
int GetMessageDeliveryMode();
int SetMessageDeliveryMode(int iMessageDeliveryMode); Unicode (Windows) INT GetMessageDeliveryMode();
INT SetMessageDeliveryMode(INT iMessageDeliveryMode);
int ipworksmq_amqpclassic_getmessagedeliverymode(void* lpObj);
int ipworksmq_amqpclassic_setmessagedeliverymode(void* lpObj, int iMessageDeliveryMode);
int GetMessageDeliveryMode();
int SetMessageDeliveryMode(int iMessageDeliveryMode);

Default Value

0

Remarks

The delivery mode of the message.

This property holds the delivery mode of the message; possible values are:

  • 0: Unspecified.
  • 1: Non-persistent; the message may be lost if the server encounters an error.
  • 2: Persistent; the message will not be lost, even in case of server errors.

The default is 0, which indicates that the message does not have an explicit delivery mode set.

This property is not available at design time.

Data Type

Integer

MessageExpiration Property (AMQPClassic Class)

The time-to-live value for this message.

Syntax

ANSI (Cross Platform)
char* GetMessageExpiration();
int SetMessageExpiration(const char* lpszMessageExpiration); Unicode (Windows) LPWSTR GetMessageExpiration();
INT SetMessageExpiration(LPCWSTR lpszMessageExpiration);
char* ipworksmq_amqpclassic_getmessageexpiration(void* lpObj);
int ipworksmq_amqpclassic_setmessageexpiration(void* lpObj, const char* lpszMessageExpiration);
QString GetMessageExpiration();
int SetMessageExpiration(QString qsMessageExpiration);

Default Value

""

Remarks

The time-to-live value for this message.

This property specifies the time-to-live (TTL) value, in milliseconds, for this message. It may be -1 if this message does not have a TTL.

This property is not available at design time.

Data Type

String

MessageHeaders Property (AMQPClassic Class)

Headers associated with the message.

Syntax

ANSI (Cross Platform)
char* GetMessageHeaders();
int SetMessageHeaders(const char* lpszMessageHeaders); Unicode (Windows) LPWSTR GetMessageHeaders();
INT SetMessageHeaders(LPCWSTR lpszMessageHeaders);
char* ipworksmq_amqpclassic_getmessageheaders(void* lpObj);
int ipworksmq_amqpclassic_setmessageheaders(void* lpObj, const char* lpszMessageHeaders);
QString GetMessageHeaders();
int SetMessageHeaders(QString qsMessageHeaders);

Default Value

""

Remarks

Headers associated with the message.

This property holds additional Headers associated with the message. It may be empty if the message does not have any headers set.

This property must be specified as a JSON object containing name-type-value tuples; for example:

{
  { "name": "Header1", "type": "long", "value": 12345678901234 },
  { "name": "Header2", "type": "boolean", "value": "false" },
  { "name": "Header3", "type": "string", "value": "This is a test." }
}

All "name" values must be ASCII strings that:

  • Start with an ASCII letter, $, or $ character.
  • Only contain ASCII letters, digits, underscores, $, and $ characters.
  • Are unique among their siblings.
  • Are no longer than 128 characters.

The following table describes all valid "type" values, and how to format the "value" field for each:

JSON Value TypeDescriptionValue Format
boolean Boolean "True" or "False"
byte Byte -128 to 127
ubyte Unsigned byte 0 to 255
short Short -32768 to 32767
ushort Unsigned short 0 to 65535
int Integer -2147483648 to 2147483647
uint Unsigned integer 0 to 4294967295
long Long -9223372036854775808 to 9223372036854775807
ulong Unsigned long 0 to 18446744073709551615
float Float IEEE 754 32-bit floating point number
double Double IEEE 754 64-bit floating point number
decimal Decimal Hex-encoded byte string
sstring Short string UTF-8 string data, limited to 255 bytes; may not contain null bytes (\0)
string String String data
array Array JSON array of type-value pairs
timestamp Timestamp Number of milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC)
table Table JSON object containing name-type-value tuples
null Null N/A (MessageValue is ignored)

Note: The ulong and sstring value types are not supported when the RabbitMQCompatible configuration setting is enabled.

Headers of the table type should be specified in the same manner as shown above, while headers of the array type should be specified as a JSON array of type-value pairs; for example:

[
  { "type": "int", "value": 23 },
  { "type": "int", "value": -52 },
  { "type": "int", "value": 153325 }
]

Nesting and mixing multiple levels of arrays and tables is allowed.

This property is not available at design time.

Data Type

String

MessageId Property (AMQPClassic Class)

The unique Id of the message.

Syntax

ANSI (Cross Platform)
char* GetMessageId();
int SetMessageId(const char* lpszMessageId); Unicode (Windows) LPWSTR GetMessageId();
INT SetMessageId(LPCWSTR lpszMessageId);
char* ipworksmq_amqpclassic_getmessageid(void* lpObj);
int ipworksmq_amqpclassic_setmessageid(void* lpObj, const char* lpszMessageId);
QString GetMessageId();
int SetMessageId(QString qsMessageId);

Default Value

""

Remarks

The unique Id of the message.

This property holds the unique Id of the message. It may be empty if the message does not have a unique Id.

This value must be specified as a string no longer than 255 characters.

This property is not available at design time.

Data Type

String

MessagePriority Property (AMQPClassic Class)

The priority of the message.

Syntax

ANSI (Cross Platform)
int GetMessagePriority();
int SetMessagePriority(int iMessagePriority); Unicode (Windows) INT GetMessagePriority();
INT SetMessagePriority(INT iMessagePriority);
int ipworksmq_amqpclassic_getmessagepriority(void* lpObj);
int ipworksmq_amqpclassic_setmessagepriority(void* lpObj, int iMessagePriority);
int GetMessagePriority();
int SetMessagePriority(int iMessagePriority);

Default Value

0

Remarks

The priority of the message.

This property holds the priority of the message. Valid priority values are 0-9; any other value causes the message to have unspecified priority when sent.

This property is not available at design time.

Data Type

Integer

MessageReplyTo Property (AMQPClassic Class)

The address to send replies to for the message.

Syntax

ANSI (Cross Platform)
char* GetMessageReplyTo();
int SetMessageReplyTo(const char* lpszMessageReplyTo); Unicode (Windows) LPWSTR GetMessageReplyTo();
INT SetMessageReplyTo(LPCWSTR lpszMessageReplyTo);
char* ipworksmq_amqpclassic_getmessagereplyto(void* lpObj);
int ipworksmq_amqpclassic_setmessagereplyto(void* lpObj, const char* lpszMessageReplyTo);
QString GetMessageReplyTo();
int SetMessageReplyTo(QString qsMessageReplyTo);

Default Value

""

Remarks

The address to send replies to for the message.

This property specifies the address to send replies to for the message. It may be empty if the message does not have a specific reply-to address set.

This value must be specified as a string no longer than 255 characters.

This property is not available at design time.

Data Type

String

MessageTimestamp Property (AMQPClassic Class)

The message's timestamp.

Syntax

ANSI (Cross Platform)
int64 GetMessageTimestamp();
int SetMessageTimestamp(int64 lMessageTimestamp); Unicode (Windows) LONG64 GetMessageTimestamp();
INT SetMessageTimestamp(LONG64 lMessageTimestamp);
int64 ipworksmq_amqpclassic_getmessagetimestamp(void* lpObj);
int ipworksmq_amqpclassic_setmessagetimestamp(void* lpObj, int64 lMessageTimestamp);
qint64 GetMessageTimestamp();
int SetMessageTimestamp(qint64 lMessageTimestamp);

Default Value

0

Remarks

The message's timestamp.

This property holds the timestamp of the message, specified as milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC). It may be less than or equal to 0 (default) if the message does not have a timestamp set.

This property is not available at design time.

Data Type

Long64

MessageType Property (AMQPClassic Class)

The message's type.

Syntax

ANSI (Cross Platform)
char* GetMessageType();
int SetMessageType(const char* lpszMessageType); Unicode (Windows) LPWSTR GetMessageType();
INT SetMessageType(LPCWSTR lpszMessageType);
char* ipworksmq_amqpclassic_getmessagetype(void* lpObj);
int ipworksmq_amqpclassic_setmessagetype(void* lpObj, const char* lpszMessageType);
QString GetMessageType();
int SetMessageType(QString qsMessageType);

Default Value

""

Remarks

The message's type.

This property holds the type of the message. It may be empty if the message does not have a type set.

This value must be specified as a string no longer than 255 characters.

This property is not available at design time.

Data Type

String

MessageUserId Property (AMQPClassic Class)

The identity of the user responsible for producing the message.

Syntax

ANSI (Cross Platform)
char* GetMessageUserId();
int SetMessageUserId(const char* lpszMessageUserId); Unicode (Windows) LPWSTR GetMessageUserId();
INT SetMessageUserId(LPCWSTR lpszMessageUserId);
char* ipworksmq_amqpclassic_getmessageuserid(void* lpObj);
int ipworksmq_amqpclassic_setmessageuserid(void* lpObj, const char* lpszMessageUserId);
QString GetMessageUserId();
int SetMessageUserId(QString qsMessageUserId);

Default Value

""

Remarks

The identity of the user responsible for producing the message.

This property specifies the identity of the user responsible for producing the message. It may be empty if no specific user was responsible for creating the message.

A message's user Id may be used for verification or authentication by the server and/or the final consumer.

This value must be specified as a string no longer than 255 characters.

This property is not available at design time.

Data Type

String

OutgoingMessageCount Property (AMQPClassic Class)

The number of records in the OutgoingMessage arrays.

Syntax

ANSI (Cross Platform)
int GetOutgoingMessageCount();

Unicode (Windows)
INT GetOutgoingMessageCount();
int ipworksmq_amqpclassic_getoutgoingmessagecount(void* lpObj);
int GetOutgoingMessageCount();

Default Value

0

Remarks

This property controls the size of the following arrays:

The array indices start at 0 and end at OutgoingMessageCount - 1.

This property is read-only and not available at design time.

Data Type

Integer

OutgoingMessageAppId Property (AMQPClassic Class)

The Id of the application that created the message.

Syntax

ANSI (Cross Platform)
char* GetOutgoingMessageAppId(int iOutgoingMessageIndex);

Unicode (Windows)
LPWSTR GetOutgoingMessageAppId(INT iOutgoingMessageIndex);
char* ipworksmq_amqpclassic_getoutgoingmessageappid(void* lpObj, int outgoingmessageindex);
QString GetOutgoingMessageAppId(int iOutgoingMessageIndex);

Default Value

""

Remarks

The Id of the application that created the message.

This property holds the Id of the application that created the message. It may be empty if the message does not have an application Id set.

This value must be specified as a string no longer than 255 characters.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

OutgoingMessageBody Property (AMQPClassic Class)

The message body.

Syntax

ANSI (Cross Platform)
int GetOutgoingMessageBody(int iOutgoingMessageIndex, char* &lpOutgoingMessageBody, int &lenOutgoingMessageBody);

Unicode (Windows)
INT GetOutgoingMessageBody(INT iOutgoingMessageIndex, LPSTR &lpOutgoingMessageBody, INT &lenOutgoingMessageBody);
int ipworksmq_amqpclassic_getoutgoingmessagebody(void* lpObj, int outgoingmessageindex, char** lpOutgoingMessageBody, int* lenOutgoingMessageBody);
QByteArray GetOutgoingMessageBody(int iOutgoingMessageIndex);

Default Value

""

Remarks

The message body.

This property holds the body of the message. It may be empty.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

Binary String

OutgoingMessageChannelName Property (AMQPClassic Class)

The name of the channel the message is associated with.

Syntax

ANSI (Cross Platform)
char* GetOutgoingMessageChannelName(int iOutgoingMessageIndex);

Unicode (Windows)
LPWSTR GetOutgoingMessageChannelName(INT iOutgoingMessageIndex);
char* ipworksmq_amqpclassic_getoutgoingmessagechannelname(void* lpObj, int outgoingmessageindex);
QString GetOutgoingMessageChannelName(int iOutgoingMessageIndex);

Default Value

""

Remarks

The name of the channel the message is associated with.

This property reflects the name of the channel which the message is associated with; it is populated automatically by the class.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

OutgoingMessageContentEncoding Property (AMQPClassic Class)

The content encoding of the message's body.

Syntax

ANSI (Cross Platform)
char* GetOutgoingMessageContentEncoding(int iOutgoingMessageIndex);

Unicode (Windows)
LPWSTR GetOutgoingMessageContentEncoding(INT iOutgoingMessageIndex);
char* ipworksmq_amqpclassic_getoutgoingmessagecontentencoding(void* lpObj, int outgoingmessageindex);
QString GetOutgoingMessageContentEncoding(int iOutgoingMessageIndex);

Default Value

""

Remarks

The content encoding of the message's body.

This property holds the content encoding of the message's body. It may be empty if the message does not have a content encoding set.

This value must be specified as a string no longer than 255 characters.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

OutgoingMessageContentType Property (AMQPClassic Class)

The content type (MIME type) of the message's body.

Syntax

ANSI (Cross Platform)
char* GetOutgoingMessageContentType(int iOutgoingMessageIndex);

Unicode (Windows)
LPWSTR GetOutgoingMessageContentType(INT iOutgoingMessageIndex);
char* ipworksmq_amqpclassic_getoutgoingmessagecontenttype(void* lpObj, int outgoingmessageindex);
QString GetOutgoingMessageContentType(int iOutgoingMessageIndex);

Default Value

""

Remarks

The content type (MIME type) of the message's body.

This property holds the content type (MIME type) of the message's body. It may be empty if the message does not have a content type set.

This value must be specified as a string no longer than 255 characters.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

OutgoingMessageCorrelationId Property (AMQPClassic Class)

The correlation Id of the message.

Syntax

ANSI (Cross Platform)
char* GetOutgoingMessageCorrelationId(int iOutgoingMessageIndex);

Unicode (Windows)
LPWSTR GetOutgoingMessageCorrelationId(INT iOutgoingMessageIndex);
char* ipworksmq_amqpclassic_getoutgoingmessagecorrelationid(void* lpObj, int outgoingmessageindex);
QString GetOutgoingMessageCorrelationId(int iOutgoingMessageIndex);

Default Value

""

Remarks

The correlation Id of the message.

This property holds the correlation Id of the message. It may be empty if the message does not have a correlation Id set.

This value must be specified as a string no longer than 255 characters.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

OutgoingMessageDeliveryMode Property (AMQPClassic Class)

The delivery mode of the message.

Syntax

ANSI (Cross Platform)
int GetOutgoingMessageDeliveryMode(int iOutgoingMessageIndex);

Unicode (Windows)
INT GetOutgoingMessageDeliveryMode(INT iOutgoingMessageIndex);
int ipworksmq_amqpclassic_getoutgoingmessagedeliverymode(void* lpObj, int outgoingmessageindex);
int GetOutgoingMessageDeliveryMode(int iOutgoingMessageIndex);

Default Value

0

Remarks

The delivery mode of the message.

This property holds the delivery mode of the message; possible values are:

  • 0: Unspecified.
  • 1: Non-persistent; the message may be lost if the server encounters an error.
  • 2: Persistent; the message will not be lost, even in case of server errors.

The default is 0, which indicates that the message does not have an explicit delivery mode set.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

Integer

OutgoingMessageExpiration Property (AMQPClassic Class)

The time-to-live value for this message.

Syntax

ANSI (Cross Platform)
char* GetOutgoingMessageExpiration(int iOutgoingMessageIndex);

Unicode (Windows)
LPWSTR GetOutgoingMessageExpiration(INT iOutgoingMessageIndex);
char* ipworksmq_amqpclassic_getoutgoingmessageexpiration(void* lpObj, int outgoingmessageindex);
QString GetOutgoingMessageExpiration(int iOutgoingMessageIndex);

Default Value

""

Remarks

The time-to-live value for this message.

This property specifies the time-to-live (TTL) value, in milliseconds, for this message. It may be -1 if this message does not have a TTL.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

OutgoingMessageHeaders Property (AMQPClassic Class)

Headers associated with the message.

Syntax

ANSI (Cross Platform)
char* GetOutgoingMessageHeaders(int iOutgoingMessageIndex);

Unicode (Windows)
LPWSTR GetOutgoingMessageHeaders(INT iOutgoingMessageIndex);
char* ipworksmq_amqpclassic_getoutgoingmessageheaders(void* lpObj, int outgoingmessageindex);
QString GetOutgoingMessageHeaders(int iOutgoingMessageIndex);

Default Value

""

Remarks

Headers associated with the message.

This property holds additional Headers associated with the message. It may be empty if the message does not have any headers set.

This property must be specified as a JSON object containing name-type-value tuples; for example:

{
  { "name": "Header1", "type": "long", "value": 12345678901234 },
  { "name": "Header2", "type": "boolean", "value": "false" },
  { "name": "Header3", "type": "string", "value": "This is a test." }
}

All "name" values must be ASCII strings that:

  • Start with an ASCII letter, $, or $ character.
  • Only contain ASCII letters, digits, underscores, $, and $ characters.
  • Are unique among their siblings.
  • Are no longer than 128 characters.

The following table describes all valid "type" values, and how to format the "value" field for each:

JSON Value TypeDescriptionValue Format
boolean Boolean "True" or "False"
byte Byte -128 to 127
ubyte Unsigned byte 0 to 255
short Short -32768 to 32767
ushort Unsigned short 0 to 65535
int Integer -2147483648 to 2147483647
uint Unsigned integer 0 to 4294967295
long Long -9223372036854775808 to 9223372036854775807
ulong Unsigned long 0 to 18446744073709551615
float Float IEEE 754 32-bit floating point number
double Double IEEE 754 64-bit floating point number
decimal Decimal Hex-encoded byte string
sstring Short string UTF-8 string data, limited to 255 bytes; may not contain null bytes (\0)
string String String data
array Array JSON array of type-value pairs
timestamp Timestamp Number of milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC)
table Table JSON object containing name-type-value tuples
null Null N/A (OutgoingMessageValue is ignored)

Note: The ulong and sstring value types are not supported when the RabbitMQCompatible configuration setting is enabled.

Headers of the table type should be specified in the same manner as shown above, while headers of the array type should be specified as a JSON array of type-value pairs; for example:

[
  { "type": "int", "value": 23 },
  { "type": "int", "value": -52 },
  { "type": "int", "value": 153325 }
]

Nesting and mixing multiple levels of arrays and tables is allowed.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

OutgoingMessageId Property (AMQPClassic Class)

The unique Id of the message.

Syntax

ANSI (Cross Platform)
char* GetOutgoingMessageId(int iOutgoingMessageIndex);

Unicode (Windows)
LPWSTR GetOutgoingMessageId(INT iOutgoingMessageIndex);
char* ipworksmq_amqpclassic_getoutgoingmessageid(void* lpObj, int outgoingmessageindex);
QString GetOutgoingMessageId(int iOutgoingMessageIndex);

Default Value

""

Remarks

The unique Id of the message.

This property holds the unique Id of the message. It may be empty if the message does not have a unique Id.

This value must be specified as a string no longer than 255 characters.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

OutgoingMessagePriority Property (AMQPClassic Class)

The priority of the message.

Syntax

ANSI (Cross Platform)
int GetOutgoingMessagePriority(int iOutgoingMessageIndex);

Unicode (Windows)
INT GetOutgoingMessagePriority(INT iOutgoingMessageIndex);
int ipworksmq_amqpclassic_getoutgoingmessagepriority(void* lpObj, int outgoingmessageindex);
int GetOutgoingMessagePriority(int iOutgoingMessageIndex);

Default Value

0

Remarks

The priority of the message.

This property holds the priority of the message. Valid priority values are 0-9; any other value causes the message to have unspecified priority when sent.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

Integer

OutgoingMessageReplyTo Property (AMQPClassic Class)

The address to send replies to for the message.

Syntax

ANSI (Cross Platform)
char* GetOutgoingMessageReplyTo(int iOutgoingMessageIndex);

Unicode (Windows)
LPWSTR GetOutgoingMessageReplyTo(INT iOutgoingMessageIndex);
char* ipworksmq_amqpclassic_getoutgoingmessagereplyto(void* lpObj, int outgoingmessageindex);
QString GetOutgoingMessageReplyTo(int iOutgoingMessageIndex);

Default Value

""

Remarks

The address to send replies to for the message.

This property specifies the address to send replies to for the message. It may be empty if the message does not have a specific reply-to address set.

This value must be specified as a string no longer than 255 characters.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

OutgoingMessageTimestamp Property (AMQPClassic Class)

The message's timestamp.

Syntax

ANSI (Cross Platform)
int64 GetOutgoingMessageTimestamp(int iOutgoingMessageIndex);

Unicode (Windows)
LONG64 GetOutgoingMessageTimestamp(INT iOutgoingMessageIndex);
int64 ipworksmq_amqpclassic_getoutgoingmessagetimestamp(void* lpObj, int outgoingmessageindex);
qint64 GetOutgoingMessageTimestamp(int iOutgoingMessageIndex);

Default Value

0

Remarks

The message's timestamp.

This property holds the timestamp of the message, specified as milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC). It may be less than or equal to 0 (default) if the message does not have a timestamp set.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

Long64

OutgoingMessageType Property (AMQPClassic Class)

The message's type.

Syntax

ANSI (Cross Platform)
char* GetOutgoingMessageType(int iOutgoingMessageIndex);

Unicode (Windows)
LPWSTR GetOutgoingMessageType(INT iOutgoingMessageIndex);
char* ipworksmq_amqpclassic_getoutgoingmessagetype(void* lpObj, int outgoingmessageindex);
QString GetOutgoingMessageType(int iOutgoingMessageIndex);

Default Value

""

Remarks

The message's type.

This property holds the type of the message. It may be empty if the message does not have a type set.

This value must be specified as a string no longer than 255 characters.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

OutgoingMessageUserId Property (AMQPClassic Class)

The identity of the user responsible for producing the message.

Syntax

ANSI (Cross Platform)
char* GetOutgoingMessageUserId(int iOutgoingMessageIndex);

Unicode (Windows)
LPWSTR GetOutgoingMessageUserId(INT iOutgoingMessageIndex);
char* ipworksmq_amqpclassic_getoutgoingmessageuserid(void* lpObj, int outgoingmessageindex);
QString GetOutgoingMessageUserId(int iOutgoingMessageIndex);

Default Value

""

Remarks

The identity of the user responsible for producing the message.

This property specifies the identity of the user responsible for producing the message. It may be empty if no specific user was responsible for creating the message.

A message's user Id may be used for verification or authentication by the server and/or the final consumer.

This value must be specified as a string no longer than 255 characters.

The OutgoingMessageIndex parameter specifies the index of the item in the array. The size of the array is controlled by the OutgoingMessageCount property.

This property is read-only and not available at design time.

Data Type

String

Password Property (AMQPClassic Class)

A password to use for SASL authentication.

Syntax

ANSI (Cross Platform)
char* GetPassword();
int SetPassword(const char* lpszPassword); Unicode (Windows) LPWSTR GetPassword();
INT SetPassword(LPCWSTR lpszPassword);
char* ipworksmq_amqpclassic_getpassword(void* lpObj);
int ipworksmq_amqpclassic_setpassword(void* lpObj, const char* lpszPassword);
QString GetPassword();
int SetPassword(QString qsPassword);

Default Value

""

Remarks

This property contains a password to use for SASL authentication.

This property is not available at design time.

Data Type

String

QueueMessageCount Property (AMQPClassic Class)

The message count returned by various queue operations.

Syntax

ANSI (Cross Platform)
int GetQueueMessageCount();

Unicode (Windows)
INT GetQueueMessageCount();
int ipworksmq_amqpclassic_getqueuemessagecount(void* lpObj);
int GetQueueMessageCount();

Default Value

0

Remarks

This property is populated with a message count after calling certain queue-related methods.

After calling...This property will reflect...
DeclareQueue The number of messages currently in the queue.
PurgeQueue The number of messages purged from the queue.
DeleteQueue THe number of messages deleted along with the queue.

This property is read-only and not available at design time.

Data Type

Integer

ReceivedMessageAppId Property (AMQPClassic Class)

The Id of the application that created the message.

Syntax

ANSI (Cross Platform)
char* GetReceivedMessageAppId();

Unicode (Windows)
LPWSTR GetReceivedMessageAppId();
char* ipworksmq_amqpclassic_getreceivedmessageappid(void* lpObj);
QString GetReceivedMessageAppId();

Default Value

""

Remarks

The Id of the application that created the message.

This property holds the Id of the application that created the message. It may be empty if the message does not have an application Id set.

This value must be specified as a string no longer than 255 characters.

This property is read-only and not available at design time.

Data Type

String

ReceivedMessageBody Property (AMQPClassic Class)

The message body.

Syntax

ANSI (Cross Platform)
int GetReceivedMessageBody(char* &lpReceivedMessageBody, int &lenReceivedMessageBody);

Unicode (Windows)
INT GetReceivedMessageBody(LPSTR &lpReceivedMessageBody, INT &lenReceivedMessageBody);
int ipworksmq_amqpclassic_getreceivedmessagebody(void* lpObj, char** lpReceivedMessageBody, int* lenReceivedMessageBody);
QByteArray GetReceivedMessageBody();

Default Value

""

Remarks

The message body.

This property holds the body of the message. It may be empty.

This property is read-only and not available at design time.

Data Type

Binary String

ReceivedMessageChannelName Property (AMQPClassic Class)

The name of the channel the message is associated with.

Syntax

ANSI (Cross Platform)
char* GetReceivedMessageChannelName();

Unicode (Windows)
LPWSTR GetReceivedMessageChannelName();
char* ipworksmq_amqpclassic_getreceivedmessagechannelname(void* lpObj);
QString GetReceivedMessageChannelName();

Default Value

""

Remarks

The name of the channel the message is associated with.

This property reflects the name of the channel which the message is associated with; it is populated automatically by the class.

This property is read-only and not available at design time.

Data Type

String

ReceivedMessageContentEncoding Property (AMQPClassic Class)

The content encoding of the message's body.

Syntax

ANSI (Cross Platform)
char* GetReceivedMessageContentEncoding();

Unicode (Windows)
LPWSTR GetReceivedMessageContentEncoding();
char* ipworksmq_amqpclassic_getreceivedmessagecontentencoding(void* lpObj);
QString GetReceivedMessageContentEncoding();

Default Value

""

Remarks

The content encoding of the message's body.

This property holds the content encoding of the message's body. It may be empty if the message does not have a content encoding set.

This value must be specified as a string no longer than 255 characters.

This property is read-only and not available at design time.

Data Type

String

ReceivedMessageContentType Property (AMQPClassic Class)

The content type (MIME type) of the message's body.

Syntax

ANSI (Cross Platform)
char* GetReceivedMessageContentType();

Unicode (Windows)
LPWSTR GetReceivedMessageContentType();
char* ipworksmq_amqpclassic_getreceivedmessagecontenttype(void* lpObj);
QString GetReceivedMessageContentType();

Default Value

""

Remarks

The content type (MIME type) of the message's body.

This property holds the content type (MIME type) of the message's body. It may be empty if the message does not have a content type set.

This value must be specified as a string no longer than 255 characters.

This property is read-only and not available at design time.

Data Type

String

ReceivedMessageCorrelationId Property (AMQPClassic Class)

The correlation Id of the message.

Syntax

ANSI (Cross Platform)
char* GetReceivedMessageCorrelationId();

Unicode (Windows)
LPWSTR GetReceivedMessageCorrelationId();
char* ipworksmq_amqpclassic_getreceivedmessagecorrelationid(void* lpObj);
QString GetReceivedMessageCorrelationId();

Default Value

""

Remarks

The correlation Id of the message.

This property holds the correlation Id of the message. It may be empty if the message does not have a correlation Id set.

This value must be specified as a string no longer than 255 characters.

This property is read-only and not available at design time.

Data Type

String

ReceivedMessageDeliveryMode Property (AMQPClassic Class)

The delivery mode of the message.

Syntax

ANSI (Cross Platform)
int GetReceivedMessageDeliveryMode();

Unicode (Windows)
INT GetReceivedMessageDeliveryMode();
int ipworksmq_amqpclassic_getreceivedmessagedeliverymode(void* lpObj);
int GetReceivedMessageDeliveryMode();

Default Value

0

Remarks

The delivery mode of the message.

This property holds the delivery mode of the message; possible values are:

  • 0: Unspecified.
  • 1: Non-persistent; the message may be lost if the server encounters an error.
  • 2: Persistent; the message will not be lost, even in case of server errors.

The default is 0, which indicates that the message does not have an explicit delivery mode set.

This property is read-only and not available at design time.

Data Type

Integer

ReceivedMessageExpiration Property (AMQPClassic Class)

The time-to-live value for this message.

Syntax

ANSI (Cross Platform)
char* GetReceivedMessageExpiration();

Unicode (Windows)
LPWSTR GetReceivedMessageExpiration();
char* ipworksmq_amqpclassic_getreceivedmessageexpiration(void* lpObj);
QString GetReceivedMessageExpiration();

Default Value

""

Remarks

The time-to-live value for this message.

This property specifies the time-to-live (TTL) value, in milliseconds, for this message. It may be -1 if this message does not have a TTL.

This property is read-only and not available at design time.

Data Type

String

ReceivedMessageHeaders Property (AMQPClassic Class)

Headers associated with the message.

Syntax

ANSI (Cross Platform)
char* GetReceivedMessageHeaders();

Unicode (Windows)
LPWSTR GetReceivedMessageHeaders();
char* ipworksmq_amqpclassic_getreceivedmessageheaders(void* lpObj);
QString GetReceivedMessageHeaders();

Default Value

""

Remarks

Headers associated with the message.

This property holds additional Headers associated with the message. It may be empty if the message does not have any headers set.

This property must be specified as a JSON object containing name-type-value tuples; for example:

{
  { "name": "Header1", "type": "long", "value": 12345678901234 },
  { "name": "Header2", "type": "boolean", "value": "false" },
  { "name": "Header3", "type": "string", "value": "This is a test." }
}

All "name" values must be ASCII strings that:

  • Start with an ASCII letter, $, or $ character.
  • Only contain ASCII letters, digits, underscores, $, and $ characters.
  • Are unique among their siblings.
  • Are no longer than 128 characters.

The following table describes all valid "type" values, and how to format the "value" field for each:

JSON Value TypeDescriptionValue Format
boolean Boolean "True" or "False"
byte Byte -128 to 127
ubyte Unsigned byte 0 to 255
short Short -32768 to 32767
ushort Unsigned short 0 to 65535
int Integer -2147483648 to 2147483647
uint Unsigned integer 0 to 4294967295
long Long -9223372036854775808 to 9223372036854775807
ulong Unsigned long 0 to 18446744073709551615
float Float IEEE 754 32-bit floating point number
double Double IEEE 754 64-bit floating point number
decimal Decimal Hex-encoded byte string
sstring Short string UTF-8 string data, limited to 255 bytes; may not contain null bytes (\0)
string String String data
array Array JSON array of type-value pairs
timestamp Timestamp Number of milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC)
table Table JSON object containing name-type-value tuples
null Null N/A (ReceivedMessageValue is ignored)

Note: The ulong and sstring value types are not supported when the RabbitMQCompatible configuration setting is enabled.

Headers of the table type should be specified in the same manner as shown above, while headers of the array type should be specified as a JSON array of type-value pairs; for example:

[
  { "type": "int", "value": 23 },
  { "type": "int", "value": -52 },
  { "type": "int", "value": 153325 }
]

Nesting and mixing multiple levels of arrays and tables is allowed.

This property is read-only and not available at design time.

Data Type

String

ReceivedMessageId Property (AMQPClassic Class)

The unique Id of the message.

Syntax

ANSI (Cross Platform)
char* GetReceivedMessageId();

Unicode (Windows)
LPWSTR GetReceivedMessageId();
char* ipworksmq_amqpclassic_getreceivedmessageid(void* lpObj);
QString GetReceivedMessageId();

Default Value

""

Remarks

The unique Id of the message.

This property holds the unique Id of the message. It may be empty if the message does not have a unique Id.

This value must be specified as a string no longer than 255 characters.

This property is read-only and not available at design time.

Data Type

String

ReceivedMessagePriority Property (AMQPClassic Class)

The priority of the message.

Syntax

ANSI (Cross Platform)
int GetReceivedMessagePriority();

Unicode (Windows)
INT GetReceivedMessagePriority();
int ipworksmq_amqpclassic_getreceivedmessagepriority(void* lpObj);
int GetReceivedMessagePriority();

Default Value

0

Remarks

The priority of the message.

This property holds the priority of the message. Valid priority values are 0-9; any other value causes the message to have unspecified priority when sent.

This property is read-only and not available at design time.

Data Type

Integer

ReceivedMessageReplyTo Property (AMQPClassic Class)

The address to send replies to for the message.

Syntax

ANSI (Cross Platform)
char* GetReceivedMessageReplyTo();

Unicode (Windows)
LPWSTR GetReceivedMessageReplyTo();
char* ipworksmq_amqpclassic_getreceivedmessagereplyto(void* lpObj);
QString GetReceivedMessageReplyTo();

Default Value

""

Remarks

The address to send replies to for the message.

This property specifies the address to send replies to for the message. It may be empty if the message does not have a specific reply-to address set.

This value must be specified as a string no longer than 255 characters.

This property is read-only and not available at design time.

Data Type

String

ReceivedMessageTimestamp Property (AMQPClassic Class)

The message's timestamp.

Syntax

ANSI (Cross Platform)
int64 GetReceivedMessageTimestamp();

Unicode (Windows)
LONG64 GetReceivedMessageTimestamp();
int64 ipworksmq_amqpclassic_getreceivedmessagetimestamp(void* lpObj);
qint64 GetReceivedMessageTimestamp();

Default Value

0

Remarks

The message's timestamp.

This property holds the timestamp of the message, specified as milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC). It may be less than or equal to 0 (default) if the message does not have a timestamp set.

This property is read-only and not available at design time.

Data Type

Long64

ReceivedMessageType Property (AMQPClassic Class)

The message's type.

Syntax

ANSI (Cross Platform)
char* GetReceivedMessageType();

Unicode (Windows)
LPWSTR GetReceivedMessageType();
char* ipworksmq_amqpclassic_getreceivedmessagetype(void* lpObj);
QString GetReceivedMessageType();

Default Value

""

Remarks

The message's type.

This property holds the type of the message. It may be empty if the message does not have a type set.

This value must be specified as a string no longer than 255 characters.

This property is read-only and not available at design time.

Data Type

String

ReceivedMessageUserId Property (AMQPClassic Class)

The identity of the user responsible for producing the message.

Syntax

ANSI (Cross Platform)
char* GetReceivedMessageUserId();

Unicode (Windows)
LPWSTR GetReceivedMessageUserId();
char* ipworksmq_amqpclassic_getreceivedmessageuserid(void* lpObj);
QString GetReceivedMessageUserId();

Default Value

""

Remarks

The identity of the user responsible for producing the message.

This property specifies the identity of the user responsible for producing the message. It may be empty if no specific user was responsible for creating the message.

A message's user Id may be used for verification or authentication by the server and/or the final consumer.

This value must be specified as a string no longer than 255 characters.

This property is read-only and not available at design time.

Data Type

String

RemoteHost Property (AMQPClassic Class)

This property includes the address of the remote host. Domain names are resolved to IP addresses.

Syntax

ANSI (Cross Platform)
char* GetRemoteHost();
int SetRemoteHost(const char* lpszRemoteHost); Unicode (Windows) LPWSTR GetRemoteHost();
INT SetRemoteHost(LPCWSTR lpszRemoteHost);
char* ipworksmq_amqpclassic_getremotehost(void* lpObj);
int ipworksmq_amqpclassic_setremotehost(void* lpObj, const char* lpszRemoteHost);
QString GetRemoteHost();
int SetRemoteHost(QString qsRemoteHost);

Default Value

""

Remarks

This property specifies the IP address (IP number in dotted internet format) or the domain name of the remote host. It is set before a connection is attempted and cannot be changed once a connection is established.

If this property is set to a domain name, a DNS request is initiated, and upon successful termination of the request, this property is set to the corresponding address. If the search is not successful, an error is returned.

If the class is configured to use a SOCKS firewall, the value assigned to this property may be preceded with an "*". If this is the case, the host name is passed to the firewall unresolved and the firewall performs the DNS resolution.

Example. Connecting:

TCPClientControl.RemoteHost = "MyHostNameOrIP" TCPClientControl.RemotePort = 777 TCPClientControl.Connected = true

Data Type

String

RemotePort Property (AMQPClassic Class)

The port of the AQMP server (default is 5672). The default port for SSL is 5671.

Syntax

ANSI (Cross Platform)
int GetRemotePort();
int SetRemotePort(int iRemotePort); Unicode (Windows) INT GetRemotePort();
INT SetRemotePort(INT iRemotePort);
int ipworksmq_amqpclassic_getremoteport(void* lpObj);
int ipworksmq_amqpclassic_setremoteport(void* lpObj, int iRemotePort);
int GetRemotePort();
int SetRemotePort(int iRemotePort);

Default Value

5672

Remarks

This property specifies a service port on the remote host to connect to.

A valid port number (a value between 1 and 65535) is required for the connection to take place. The property must be set before a connection is attempted and cannot be changed once a connection is established. Any attempt to change this property while connected will fail with an error.

This property is not available at design time.

Data Type

Integer

ServerPropertyCount Property (AMQPClassic Class)

The number of records in the ServerProperty arrays.

Syntax

ANSI (Cross Platform)
int GetServerPropertyCount();

Unicode (Windows)
INT GetServerPropertyCount();
int ipworksmq_amqpclassic_getserverpropertycount(void* lpObj);
int GetServerPropertyCount();

Default Value

0

Remarks

This property controls the size of the following arrays:

The array indices start at 0 and end at ServerPropertyCount - 1.

This property is read-only and not available at design time.

Data Type

Integer

ServerPropertyName Property (AMQPClassic Class)

The table property's name.

Syntax

ANSI (Cross Platform)
char* GetServerPropertyName(int iServerPropertyIndex);

Unicode (Windows)
LPWSTR GetServerPropertyName(INT iServerPropertyIndex);
char* ipworksmq_amqpclassic_getserverpropertyname(void* lpObj, int serverpropertyindex);
QString GetServerPropertyName(int iServerPropertyIndex);

Default Value

""

Remarks

The table field's name.

This property specifies the table field's name. The name must be an ASCII string that:

  • Starts with an ASCII letter, $, or $ character.
  • Only contains ASCII letters, digits, underscores, $, and $ characters.
  • Is unique among all sibling table field ServerPropertyNames.
  • Is no longer than 128 characters.

The ServerPropertyIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ServerPropertyCount property.

This property is read-only and not available at design time.

Data Type

String

ServerPropertyValue Property (AMQPClassic Class)

The table property's value.

Syntax

ANSI (Cross Platform)
char* GetServerPropertyValue(int iServerPropertyIndex);

Unicode (Windows)
LPWSTR GetServerPropertyValue(INT iServerPropertyIndex);
char* ipworksmq_amqpclassic_getserverpropertyvalue(void* lpObj, int serverpropertyindex);
QString GetServerPropertyValue(int iServerPropertyIndex);

Default Value

""

Remarks

The table field's value.

This property specifies the table field's value.

The ServerPropertyIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ServerPropertyCount property.

This property is read-only and not available at design time.

Data Type

String

ServerPropertyValueType Property (AMQPClassic Class)

The table property's value type.

Syntax

ANSI (Cross Platform)
int GetServerPropertyValueType(int iServerPropertyIndex);

Unicode (Windows)
INT GetServerPropertyValueType(INT iServerPropertyIndex);

Possible Values

FVT_BOOLEAN(0), 
FVT_BYTE(1),
FVT_UBYTE(2),
FVT_SHORT(3),
FVT_USHORT(4),
FVT_INT(5),
FVT_UINT(6),
FVT_LONG(7),
FVT_ULONG(8),
FVT_FLOAT(9),
FVT_DOUBLE(10),
FVT_DECIMAL(11),
FVT_SSTRING(12),
FVT_STRING(13),
FVT_ARRAY(14),
FVT_TIMESTAMP(15),
FVT_TABLE(16),
FVT_NULL(17)
int ipworksmq_amqpclassic_getserverpropertyvaluetype(void* lpObj, int serverpropertyindex);
int GetServerPropertyValueType(int iServerPropertyIndex);

Default Value

17

Remarks

The table field's value type.

This property specifies the table field's value type (and thus, the format of the data in the ServerPropertyValue property). Acceptable value types are:

Value Type JSON Value TypeDescriptionValue Format
fvtBoolean (0) boolean Boolean "True" or "False"
fvtByte (1) byte Byte -128 to 127
fvtUbyte (2) ubyte Unsigned byte 0 to 255
fvtShort (3) short Short -32768 to 32767
fvtUshort (4) ushort Unsigned short 0 to 65535
fvtInt (5) int Integer -2147483648 to 2147483647
fvtUint (6) uint Unsigned integer 0 to 4294967295
fvtLong (7) long Long -9223372036854775808 to 9223372036854775807
fvtUlong (8) ulong Unsigned long 0 to 18446744073709551615
fvtFloat (9) float Float IEEE 754 32-bit floating point number
fvtDouble (10) double Double IEEE 754 64-bit floating point number
fvtDecimal (11) decimal Decimal Hex-encoded byte string
fvtSstring (12) sstring Short string UTF-8 string data, limited to 255 bytes; may not contain null bytes (\0)
fvtString (13) string String String data
fvtArray (14) array Array JSON array of type-value pairs
fvtTimestamp (15) timestamp Timestamp Number of milliseconds since the Unix epoch (January 1, 1970 00:00:00 UTC)
fvtTable (16) table Table JSON object containing name-type-value tuples
fvtNull (17 - default)null Null N/A (ServerPropertyValue is ignored)

Note: The fvtUlong (8) and fvtSstring (12) value types are not supported when the RabbitMQCompatible configuration setting is enabled.

For the fvtArray (14) value type, the ServerPropertyValue should be specified as a JSON array of type-value pairs; for example:

[
  { "type": "int", "value": 23 },
  { "type": "int", "value": -52 },
  { "type": "int", "value": 153325 }
]

For the fvtTable (16) value type, the ServerPropertyValue should be specified as a JSON object containing name-type-value tuples; for example:

{
  { "name": "Test1", "type": "long", "value": 12345678901234 },
  { "name": "Test2", "type": "boolean", "value": "false" },
  { "name": "Test3", "type": "string", "value": "This is a test." }
}

Notes regarding fvtArray (14) and fvtTable (16) type ServerPropertyValues:

  • All "type" fields in the JSON content must be set to one of the value types in the table above.
  • For fvtTable (16) type ServerPropertyValues, all "name" fields must adhere to the rules described by the ServerPropertyKey documentation.
  • Nesting and mixing multiple levels of arrays and tables in the JSON is allowed.

The ServerPropertyIndex parameter specifies the index of the item in the array. The size of the array is controlled by the ServerPropertyCount property.

This property is read-only and not available at design time.

Data Type

Integer

SSLAcceptServerCertEncoded Property (AMQPClassic Class)

This is the certificate (PEM/base64 encoded).

Syntax

ANSI (Cross Platform)
int GetSSLAcceptServerCertEncoded(char* &lpSSLAcceptServerCertEncoded, int &lenSSLAcceptServerCertEncoded);
int SetSSLAcceptServerCertEncoded(const char* lpSSLAcceptServerCertEncoded, int lenSSLAcceptServerCertEncoded); Unicode (Windows) INT GetSSLAcceptServerCertEncoded(LPSTR &lpSSLAcceptServerCertEncoded, INT &lenSSLAcceptServerCertEncoded);
INT SetSSLAcceptServerCertEncoded(LPCSTR lpSSLAcceptServerCertEncoded, INT lenSSLAcceptServerCertEncoded);
int ipworksmq_amqpclassic_getsslacceptservercertencoded(void* lpObj, char** lpSSLAcceptServerCertEncoded, int* lenSSLAcceptServerCertEncoded);
int ipworksmq_amqpclassic_setsslacceptservercertencoded(void* lpObj, const char* lpSSLAcceptServerCertEncoded, int lenSSLAcceptServerCertEncoded);
QByteArray GetSSLAcceptServerCertEncoded();
int SetSSLAcceptServerCertEncoded(QByteArray qbaSSLAcceptServerCertEncoded);

Default Value

""

Remarks

This is the certificate (PEM/base64 encoded). This property is used to assign a specific certificate. The SSLAcceptServerCertStore and SSLAcceptServerCertSubject properties also may be used to specify a certificate.

When SSLAcceptServerCertEncoded is set, a search is initiated in the current SSLAcceptServerCertStore for the private key of the certificate. If the key is found, SSLAcceptServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLAcceptServerCertSubject is set to an empty string.

This property is not available at design time.

Data Type

Binary String

SSLCertEncoded Property (AMQPClassic Class)

This is the certificate (PEM/base64 encoded).

Syntax

ANSI (Cross Platform)
int GetSSLCertEncoded(char* &lpSSLCertEncoded, int &lenSSLCertEncoded);
int SetSSLCertEncoded(const char* lpSSLCertEncoded, int lenSSLCertEncoded); Unicode (Windows) INT GetSSLCertEncoded(LPSTR &lpSSLCertEncoded, INT &lenSSLCertEncoded);
INT SetSSLCertEncoded(LPCSTR lpSSLCertEncoded, INT lenSSLCertEncoded);
int ipworksmq_amqpclassic_getsslcertencoded(void* lpObj, char** lpSSLCertEncoded, int* lenSSLCertEncoded);
int ipworksmq_amqpclassic_setsslcertencoded(void* lpObj, const char* lpSSLCertEncoded, int lenSSLCertEncoded);
QByteArray GetSSLCertEncoded();
int SetSSLCertEncoded(QByteArray qbaSSLCertEncoded);

Default Value

""

Remarks

This is the certificate (PEM/base64 encoded). This property is used to assign a specific certificate. The SSLCertStore and SSLCertSubject properties also may be used to specify a certificate.

When SSLCertEncoded is set, a search is initiated in the current SSLCertStore for the private key of the certificate. If the key is found, SSLCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLCertSubject is set to an empty string.

This property is not available at design time.

Data Type

Binary String

SSLCertStore Property (AMQPClassic Class)

This is the name of the certificate store for the client certificate.

Syntax

ANSI (Cross Platform)
int GetSSLCertStore(char* &lpSSLCertStore, int &lenSSLCertStore);
int SetSSLCertStore(const char* lpSSLCertStore, int lenSSLCertStore); Unicode (Windows) INT GetSSLCertStore(LPSTR &lpSSLCertStore, INT &lenSSLCertStore);
INT SetSSLCertStore(LPCSTR lpSSLCertStore, INT lenSSLCertStore);
int ipworksmq_amqpclassic_getsslcertstore(void* lpObj, char** lpSSLCertStore, int* lenSSLCertStore);
int ipworksmq_amqpclassic_setsslcertstore(void* lpObj, const char* lpSSLCertStore, int lenSSLCertStore);
QByteArray GetSSLCertStore();
int SetSSLCertStore(QByteArray qbaSSLCertStore);

Default Value

"MY"

Remarks

This is the name of the certificate store for the client certificate.

The SSLCertStoreType property denotes the type of the certificate store specified by SSLCertStore. If the store is password protected, specify the password in SSLCertStorePassword.

SSLCertStore is used in conjunction with the SSLCertSubject property to specify client certificates. If SSLCertStore has a value, and SSLCertSubject or SSLCertEncoded is set, a search for a certificate is initiated. Please see the SSLCertSubject property for details.

Designations of certificate stores are platform-dependent.

The following are designations of the most common User and Machine certificate stores in Windows:

MYA certificate store holding personal certificates with their associated private keys.
CACertifying authority certificates.
ROOTRoot certificates.

When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e. PKCS12 certificate store).

Data Type

Binary String

SSLCertStorePassword Property (AMQPClassic Class)

If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.

Syntax

ANSI (Cross Platform)
char* GetSSLCertStorePassword();
int SetSSLCertStorePassword(const char* lpszSSLCertStorePassword); Unicode (Windows) LPWSTR GetSSLCertStorePassword();
INT SetSSLCertStorePassword(LPCWSTR lpszSSLCertStorePassword);
char* ipworksmq_amqpclassic_getsslcertstorepassword(void* lpObj);
int ipworksmq_amqpclassic_setsslcertstorepassword(void* lpObj, const char* lpszSSLCertStorePassword);
QString GetSSLCertStorePassword();
int SetSSLCertStorePassword(QString qsSSLCertStorePassword);

Default Value

""

Remarks

If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.

Data Type

String

SSLCertStoreType Property (AMQPClassic Class)

This is the type of certificate store for this certificate.

Syntax

ANSI (Cross Platform)
int GetSSLCertStoreType();
int SetSSLCertStoreType(int iSSLCertStoreType); Unicode (Windows) INT GetSSLCertStoreType();
INT SetSSLCertStoreType(INT iSSLCertStoreType);

Possible Values

CST_USER(0), 
CST_MACHINE(1),
CST_PFXFILE(2),
CST_PFXBLOB(3),
CST_JKSFILE(4),
CST_JKSBLOB(5),
CST_PEMKEY_FILE(6),
CST_PEMKEY_BLOB(7),
CST_PUBLIC_KEY_FILE(8),
CST_PUBLIC_KEY_BLOB(9),
CST_SSHPUBLIC_KEY_BLOB(10),
CST_P7BFILE(11),
CST_P7BBLOB(12),
CST_SSHPUBLIC_KEY_FILE(13),
CST_PPKFILE(14),
CST_PPKBLOB(15),
CST_XMLFILE(16),
CST_XMLBLOB(17),
CST_JWKFILE(18),
CST_JWKBLOB(19),
CST_SECURITY_KEY(20),
CST_BCFKSFILE(21),
CST_BCFKSBLOB(22),
CST_AUTO(99)
int ipworksmq_amqpclassic_getsslcertstoretype(void* lpObj);
int ipworksmq_amqpclassic_setsslcertstoretype(void* lpObj, int iSSLCertStoreType);
int GetSSLCertStoreType();
int SetSSLCertStoreType(int iSSLCertStoreType);

Default Value

0

Remarks

This is the type of certificate store for this certificate.

The class supports both public and private keys in a variety of formats. When the cstAuto value is used the class will automatically determine the type. This property can take one of the following values:

0 (cstUser - default)For Windows, this specifies that the certificate store is a certificate store owned by the current user. Note: this store type is not available in Java.
1 (cstMachine)For Windows, this specifies that the certificate store is a machine store. Note: this store type is not available in Java.
2 (cstPFXFile)The certificate store is the name of a PFX (PKCS12) file containing certificates.
3 (cstPFXBlob)The certificate store is a string (binary or base64-encoded) representing a certificate store in PFX (PKCS12) format.
4 (cstJKSFile)The certificate store is the name of a Java Key Store (JKS) file containing certificates. Note: this store type is only available in Java.
5 (cstJKSBlob)The certificate store is a string (binary or base64-encoded) representing a certificate store in Java Key Store (JKS) format. Note: this store type is only available in Java.
6 (cstPEMKeyFile)The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate.
7 (cstPEMKeyBlob)The certificate store is a string (binary or base64-encoded) that contains a private key and an optional certificate.
8 (cstPublicKeyFile)The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate.
9 (cstPublicKeyBlob)The certificate store is a string (binary or base64-encoded) that contains a PEM- or DER-encoded public key certificate.
10 (cstSSHPublicKeyBlob)The certificate store is a string (binary or base64-encoded) that contains an SSH-style public key.
11 (cstP7BFile)The certificate store is the name of a PKCS7 file containing certificates.
12 (cstP7BBlob)The certificate store is a string (binary) representing a certificate store in PKCS7 format.
13 (cstSSHPublicKeyFile)The certificate store is the name of a file that contains an SSH-style public key.
14 (cstPPKFile)The certificate store is the name of a file that contains a PPK (PuTTY Private Key).
15 (cstPPKBlob)The certificate store is a string (binary) that contains a PPK (PuTTY Private Key).
16 (cstXMLFile)The certificate store is the name of a file that contains a certificate in XML format.
17 (cstXMLBlob)The certificate store is a string that contains a certificate in XML format.
18 (cstJWKFile)The certificate store is the name of a file that contains a JWK (JSON Web Key).
19 (cstJWKBlob)The certificate store is a string that contains a JWK (JSON Web Key).
20 (cstSecurityKey)The certificate is present on a physical security key accessible via a PKCS11 interface.

To use a security key the necessary data must first be collected using the CertMgr class. The ListStoreCertificates method may be called after setting CertStoreType to cstSecurityKey, CertStorePassword to the PIN, and CertStore to the full path of the PKCS11 dll. The certificate information returned in the CertList event's CertEncoded parameter may be saved for later use.

When using a certificate, pass the previously saved security key information as the SSLCertStore and set SSLCertStorePassword to the PIN.

Code Example: SSH Authentication with Security Key certmgr.CertStoreType = CertStoreTypes.cstSecurityKey; certmgr.OnCertList += (s, e) => { secKeyBlob = e.CertEncoded; }; certmgr.CertStore = @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll"; certmgr.CertStorePassword = "123456"; //PIN certmgr.ListStoreCertificates(); sftp.SSHCert = new Certificate(CertStoreTypes.cstSecurityKey, secKeyBlob, "123456", "*"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22);

21 (cstBCFKSFile)The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store). Note: this store type is only available in Java and .NET.
22 (cstBCFKSBlob)The certificate store is a string (binary or base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format. Note: this store type is only available in Java and .NET.
99 (cstAuto)The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically.

Data Type

Integer

SSLCertSubject Property (AMQPClassic Class)

This is the subject of the certificate used for client authentication.

Syntax

ANSI (Cross Platform)
char* GetSSLCertSubject();
int SetSSLCertSubject(const char* lpszSSLCertSubject); Unicode (Windows) LPWSTR GetSSLCertSubject();
INT SetSSLCertSubject(LPCWSTR lpszSSLCertSubject);
char* ipworksmq_amqpclassic_getsslcertsubject(void* lpObj);
int ipworksmq_amqpclassic_setsslcertsubject(void* lpObj, const char* lpszSSLCertSubject);
QString GetSSLCertSubject();
int SetSSLCertSubject(QString qsSSLCertSubject);

Default Value

""

Remarks

This is the subject of the certificate used for client authentication.

This property must be set after all other certificate properites are set. When this property is set, a search is performed in the current certificate store certificate with matching subject.

If a matching certificate is found, the property is set to the full subject of the matching certificate.

If an exact match is not found, the store is searched for subjects containing the value of the property.

If a match is still not found, the property is set to an empty string, and no certificate is selected.

The special value "*" picks a random certificate in the certificate store.

The certificate subject is a comma separated list of distinguished name fields and values. For instance "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are displayed below.

FieldMeaning
CNCommon Name. This is commonly a host name like www.server.com.
OOrganization
OUOrganizational Unit
LLocality
SState
CCountry
EEmail Address

If a field value contains a comma it must be quoted.

Data Type

String

SSLEnabled Property (AMQPClassic Class)

Whether TLS/SSL is enabled.

Syntax

ANSI (Cross Platform)
int GetSSLEnabled();
int SetSSLEnabled(int bSSLEnabled); Unicode (Windows) BOOL GetSSLEnabled();
INT SetSSLEnabled(BOOL bSSLEnabled);
int ipworksmq_amqpclassic_getsslenabled(void* lpObj);
int ipworksmq_amqpclassic_setsslenabled(void* lpObj, int bSSLEnabled);
bool GetSSLEnabled();
int SetSSLEnabled(bool bSSLEnabled);

Default Value

FALSE

Remarks

This setting specifies whether TLS/SSL is enabled in the class. When False (default) the class operates in plaintext mode. When True TLS/SSL is enabled.

TLS/SSL may also be enabled by setting SSLStartMode. Setting SSLStartMode will automatically update this property value.

If the default port (5672) is selected when SSLEnabled is set to true, the port will automatically be changed to the default port for AMQP with SSL (5671). Likewise, if port 5671 is selected when SSLEnabled is set to false, the port will automatically be changed to the default port. If the port has been set to any value other than the default values, it will remain the same when the value of SSLEnabled changes.

This property is not available at design time.

Data Type

Boolean

SSLProvider Property (AMQPClassic Class)

This specifies the SSL/TLS implementation to use.

Syntax

ANSI (Cross Platform)
int GetSSLProvider();
int SetSSLProvider(int iSSLProvider); Unicode (Windows) INT GetSSLProvider();
INT SetSSLProvider(INT iSSLProvider);

Possible Values

SSLP_AUTOMATIC(0), 
SSLP_PLATFORM(1),
SSLP_INTERNAL(2)
int ipworksmq_amqpclassic_getsslprovider(void* lpObj);
int ipworksmq_amqpclassic_setsslprovider(void* lpObj, int iSSLProvider);
int GetSSLProvider();
int SetSSLProvider(int iSSLProvider);

Default Value

0

Remarks

This property specifies the SSL/TLS implementation to use. In most cases the default value of 0 (Automatic) is recommended and should not be changed. When set to 0 (Automatic) the class will select whether to use the platform implementation or the internal implementation depending on the operating system as well as the TLS version being used.

Possible values are:

0 (sslpAutomatic - default)Automatically selects the appropriate implementation.
1 (sslpPlatform) Uses the platform/system implementation.
2 (sslpInternal) Uses the internal implementation.

Additional Notes

In most cases using the default value (Automatic) is recommended. The class will select a provider depending on the current platform.

When Automatic is selected, on Windows the class will use the platform implementation. On Linux/macOS the class will use the internal implementation. When TLS 1.3 is enabled via SSLEnabledProtocols the internal implementation is used on all platforms.

Data Type

Integer

SSLServerCertEncoded Property (AMQPClassic Class)

This is the certificate (PEM/base64 encoded).

Syntax

ANSI (Cross Platform)
int GetSSLServerCertEncoded(char* &lpSSLServerCertEncoded, int &lenSSLServerCertEncoded);

Unicode (Windows)
INT GetSSLServerCertEncoded(LPSTR &lpSSLServerCertEncoded, INT &lenSSLServerCertEncoded);
int ipworksmq_amqpclassic_getsslservercertencoded(void* lpObj, char** lpSSLServerCertEncoded, int* lenSSLServerCertEncoded);
QByteArray GetSSLServerCertEncoded();

Default Value

""

Remarks

This is the certificate (PEM/base64 encoded). This property is used to assign a specific certificate. The SSLServerCertStore and SSLServerCertSubject properties also may be used to specify a certificate.

When SSLServerCertEncoded is set, a search is initiated in the current SSLServerCertStore for the private key of the certificate. If the key is found, SSLServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLServerCertSubject is set to an empty string.

This property is read-only and not available at design time.

Data Type

Binary String

Timeout Property (AMQPClassic Class)

A timeout for the class.

Syntax

ANSI (Cross Platform)
int GetTimeout();
int SetTimeout(int iTimeout); Unicode (Windows) INT GetTimeout();
INT SetTimeout(INT iTimeout);
int ipworksmq_amqpclassic_gettimeout(void* lpObj);
int ipworksmq_amqpclassic_settimeout(void* lpObj, int iTimeout);
int GetTimeout();
int SetTimeout(int iTimeout);

Default Value

60

Remarks

If the Timeout property is set to 0, all operations return immediately, potentially failing with a WOULDBLOCK error if data cannot be sent immediately.

If Timeout is set to a positive value, data is sent in a blocking manner and the class will wait for the operation to complete before returning control. The class will handle any potential WOULDBLOCK errors internally and automatically retry the operation for a maximum of Timeout seconds.

The class will use DoEvents to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not "freeze" and remains responsive.

If Timeout expires, and the operation is not yet complete, the class fails with an error.

Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.

The default value for the Timeout property is 60 seconds.

Data Type

Integer

User Property (AMQPClassic Class)

A username to use for SASL authentication.

Syntax

ANSI (Cross Platform)
char* GetUser();
int SetUser(const char* lpszUser); Unicode (Windows) LPWSTR GetUser();
INT SetUser(LPCWSTR lpszUser);
char* ipworksmq_amqpclassic_getuser(void* lpObj);
int ipworksmq_amqpclassic_setuser(void* lpObj, const char* lpszUser);
QString GetUser();
int SetUser(QString qsUser);

Default Value

""

Remarks

This property contains a username to use for SASL authentication.

This property is not available at design time.

Data Type

String

VirtualHost Property (AMQPClassic Class)

The virtual host to connect to.

Syntax

ANSI (Cross Platform)
char* GetVirtualHost();
int SetVirtualHost(const char* lpszVirtualHost); Unicode (Windows) LPWSTR GetVirtualHost();
INT SetVirtualHost(LPCWSTR lpszVirtualHost);
char* ipworksmq_amqpclassic_getvirtualhost(void* lpObj);
int ipworksmq_amqpclassic_setvirtualhost(void* lpObj, const char* lpszVirtualHost);
QString GetVirtualHost();
int SetVirtualHost(QString qsVirtualHost);

Default Value

"/"

Remarks

This property specifies the virtual host to connect to on the server, and is set to / by default.

Note that the configuration of the server defines what virtual hosts are available.

This setting cannot be changed while connected.

This property is not available at design time.

Data Type

String

BindQueue Method (AMQPClassic Class)

Binds a queue to an exchange.

Syntax

ANSI (Cross Platform)
int BindQueue(const char* lpszChannelName, const char* lpszQueueName, const char* lpszExchangeName, const char* lpszRoutingKey, int bNoWait);

Unicode (Windows)
INT BindQueue(LPCWSTR lpszChannelName, LPCWSTR lpszQueueName, LPCWSTR lpszExchangeName, LPCWSTR lpszRoutingKey, BOOL bNoWait);
int ipworksmq_amqpclassic_bindqueue(void* lpObj, const char* lpszChannelName, const char* lpszQueueName, const char* lpszExchangeName, const char* lpszRoutingKey, int bNoWait);
int BindQueue(const QString& qsChannelName, const QString& qsQueueName, const QString& qsExchangeName, const QString& qsRoutingKey, bool bNoWait);

Remarks

This method is used to bind the queue named QueueName to the exchange named ExchangeName. Exchanges use bindings to determine which queues to route messages to.

Multiple bindings between the same queue and exchange with different RoutingKeys and/or arguments are allowed; requests that would create a duplicate binding are ignored. No queue will ever receive duplicate copies of any message, regardless of what bindings are present on the server.

Note that all AMQP 0.9.1 servers automatically bind all queues to their default exchange (which is always a direct exchange with no name) using each queue's name as the binding's routing key. This makes it easy to send a message to a specific queue without having to declare bindings; just call PublishMessage, pass empty string for ExchangeName, and the name of the desired queue for RoutingKey.

ChannelName controls what channel the class will send the request over. While any channel can technically be used, keep in mind that the server will close it if a channel error occurs. For this reason, it is good practice to make requests such as this one using a channel that is not involved in message publishing or consumption.

QueueName must be a non-empty string consisting only of letters, digits, hyphens, underscores, periods, and colons. It must be no longer than 255 characters.

The server's default exchange may be specified by passing empty string for ExchangeName. Otherwise, ExchangeName must be a non-empty string consisting only of letters, digits, hyphens, underscores, periods, and colons. It must be no longer than 255 characters.

The RoutingKey parameter specifies the binding's routing key. Exchanges that use routing-key-based logic make some sort of comparison between the routing keys of incoming messages and this value to decide which messages should be forwarded to the specified queue. Examples of exchange types which use routing keys include:

  • direct exchanges, which compare (for equality) the routing keys of incoming messages to the routing keys of each queue bound to them.
  • topic exchanges, which match the routing keys of incoming messages against the routing pattern of each queue bound to them.

Not all exchange types make use of routing keys, in which case empty string can be passed for the RoutingKey parameter. Examples of exchange types which don't use routing keys include:

  • fanout exchanges simply forward incoming messages to all queues bound to them, unconditionally.
  • header exchanges only forward messages that include certain headers. When binding a queue to a header exchange, add items to the Argument* properties to describe the headers that eligible messages must have, and whether they must have any or all of those headers.

Note that the format of the RoutingKey parameter and/or the content of the Argument* properties may differ slightly between server implementations. Refer to your server's documentation to determine what it expects to receive for each exchange type that it supports.

The NoWait parameter, if True, will cause the server to execute the request asynchronously. For asynchronous request handling, the server only sends back a response in case of an error.

An exception is thrown if no channel with the given ChannelName exists, or if the server returns an error because:

  • No queue with the given QueueName exists.
  • No exchange with the given ExchangeName exists.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Binding a Queue to an Exchange // Bind a queue to an exchange. Messages will only be delivered to the queue if their routing key is "MyRoutingKey". amqpc1.BindQueue("channel", "MyQueue", "MyExchange", "MyRoutingKey", false);

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

CancelConsume Method (AMQPClassic Class)

Cancels an existing consumer.

Syntax

ANSI (Cross Platform)
int CancelConsume(const char* lpszChannelName, const char* lpszConsumerTag, int bNoWait);

Unicode (Windows)
INT CancelConsume(LPCWSTR lpszChannelName, LPCWSTR lpszConsumerTag, BOOL bNoWait);
int ipworksmq_amqpclassic_cancelconsume(void* lpObj, const char* lpszChannelName, const char* lpszConsumerTag, int bNoWait);
int CancelConsume(const QString& qsChannelName, const QString& qsConsumerTag, bool bNoWait);

Remarks

This method requests that the server cancel the consumer identified by the given ConsumerTag on the channel specified by ChannelName.

The NoWait parameter, if True, will cause the server to execute the request asynchronously. For asynchronous request handling, the server only sends back a response in case of an error.

An exception is thrown if no channel with the given ChannelName exists, or if the server returns an error because no consumer with the given ConsumerTag exists.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

CloseChannel Method (AMQPClassic Class)

Closes a channel.

Syntax

ANSI (Cross Platform)
int CloseChannel(const char* lpszChannelName);

Unicode (Windows)
INT CloseChannel(LPCWSTR lpszChannelName);
int ipworksmq_amqpclassic_closechannel(void* lpObj, const char* lpszChannelName);
int CloseChannel(const QString& qsChannelName);

Remarks

This method closes the channel named ChannelName and removes it from the Channel* properties.

If no channel with the given ChannelName exists, an exception will be thrown.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

CommitTransaction Method (AMQPClassic Class)

Commits the current transaction for a channel.

Syntax

ANSI (Cross Platform)
int CommitTransaction(const char* lpszChannelName);

Unicode (Windows)
INT CommitTransaction(LPCWSTR lpszChannelName);
int ipworksmq_amqpclassic_committransaction(void* lpObj, const char* lpszChannelName);
int CommitTransaction(const QString& qsChannelName);

Remarks

This method commits the current transaction for the channel with the given ChannelName. A new transaction is started immediately after the current one is committed.

Refer to EnableTransactionMode for more information about transactions.

An exception is thrown if a channel with the given ChannelName doesn't exist, or if the server returns an error because the channel does not have transaction mode enabled.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Config Method (AMQPClassic Class)

Sets or retrieves a configuration setting.

Syntax

ANSI (Cross Platform)
char* Config(const char* lpszConfigurationString);

Unicode (Windows)
LPWSTR Config(LPCWSTR lpszConfigurationString);
char* ipworksmq_amqpclassic_config(void* lpObj, const char* lpszConfigurationString);
QString Config(const QString& qsConfigurationString);

Remarks

Config is a generic method available in every class. It is used to set and retrieve configuration settings for the class.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the Config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

Connect Method (AMQPClassic Class)

This method connects to a remote host.

Syntax

ANSI (Cross Platform)
int Connect();

Unicode (Windows)
INT Connect();
int ipworksmq_amqpclassic_connect(void* lpObj);
int Connect();

Remarks

This method connects to the remote host specified by RemoteHost and RemotePort. For instance: component.RemoteHost = "MyHostNameOrIP"; component.RemotePort = 7777; component.Connect();

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ConnectTo Method (AMQPClassic Class)

This method connects to a remote host.

Syntax

ANSI (Cross Platform)
int ConnectTo(const char* lpszHost, int iPort);

Unicode (Windows)
INT ConnectTo(LPCWSTR lpszHost, INT iPort);
int ipworksmq_amqpclassic_connectto(void* lpObj, const char* lpszHost, int iPort);
int ConnectTo(const QString& qsHost, int iPort);

Remarks

This method connects to the remote host specified by the Host and Port parameters. For instance: component.ConnectTo("MyHostNameOrIP", 777)

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Consume Method (AMQPClassic Class)

Starts a new consumer for a given queue.

Syntax

ANSI (Cross Platform)
int Consume(const char* lpszChannelName, const char* lpszQueueName, const char* lpszConsumerTag, int bNoLocal, int bNoAck, int bExclusive, int bNoWait);

Unicode (Windows)
INT Consume(LPCWSTR lpszChannelName, LPCWSTR lpszQueueName, LPCWSTR lpszConsumerTag, BOOL bNoLocal, BOOL bNoAck, BOOL bExclusive, BOOL bNoWait);
int ipworksmq_amqpclassic_consume(void* lpObj, const char* lpszChannelName, const char* lpszQueueName, const char* lpszConsumerTag, int bNoLocal, int bNoAck, int bExclusive, int bNoWait);
int Consume(const QString& qsChannelName, const QString& qsQueueName, const QString& qsConsumerTag, bool bNoLocal, bool bNoAck, bool bExclusive, bool bNoWait);

Remarks

This method instructs the server to start a new consumer on the queue named QueueName; once the consumer is created, it will cause messages enqueued to the specified queue to be delivered to the class over the channel specified by ChannelName.

Consumers last as long as the channel they were created on, or until they are cancelled using the CancelConsume method. Each time a message is delivered to the class, it is immediately added to the IncomingMessage* properties, the ReceivedMessage* properties are populated, and the MessageIn event fires.

ConsumerTag is a string which uniquely identifies the new consumer on the specified channel. If empty string is passed for ConsumerTag, the server will generate a consumer tag automatically when it creates the . this auto-generated consumer tag can then be retrieved by querying the ConsumerTag configuration setting after this method returns.

The NoLocal parameter, if True, ensures that the consumer never consumes messages published on the same channel. (Note that this functionality is not available on RabbitMQ servers, which ignore the NoLocal parameter).

The NoAck parameter controls whether the server will expect the class to acknowledge the each message delivered. Refer to MessageIn for more information about acknowledging messages.

The Exclusive parameter, if True, will cause the class to request that the server create an exclusive consumer. Attaching an exclusive consumer to a queue prevents any other consumers from consuming messages from that queue.

The NoWait parameter, if True, will cause the server to execute the request asynchronously. For asynchronous request handling, the server only sends back a response in case of an error.

Additional arguments may be sent with this request by adding them to the Argument* properties. Arguments are server-dependent; refer to your server's documentation to determine if any additional arguments apply for this request.

An exception is thrown if no channel with the given ChannelName exists, or if the server returns an error because:

  • No queue with the given QueueName exists.
  • The given ConsumerTag is already in use on the specified channel.
  • An exclusive consumer was requested for a queue which already has consumers attached to it.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Receiving a Message // MessageIn event handler. amqpc1.OnMessageIn += (s, e) => { if (e.MessageCount == -1) { // The server pushed a message to us asynchronously due to a consumer we created. Console.WriteLine("The server pushed this message to us via consumer '" + e.ConsumerTag + "':"); Console.WriteLine(amqpc1.ReceivedMessage.Body); } else if (e.DeliveryTag > 0) { // We pulled a message from a queue with the FetchMessage() method. Console.WriteLine("Message successfully pulled:"); Console.WriteLine(amqpc1.ReceivedMessage.Body); Console.WriteLine(e.MessageCount + " messages are still available to pull."); } else { // We tried to pull a message, but there were none available to pull. Console.WriteLine("No messages available to pull."); } }; // Attach a consumer to "MyQueue". amqpc1.Consume("channel", "MyQueue", "consumerTag", false, true, false, false); // Or, try to fetch a message from "MyQueue". amqpc1.FetchMessage("channel", "MyQueue", true);

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

CreateChannel Method (AMQPClassic Class)

Creates a new channel.

Syntax

ANSI (Cross Platform)
int CreateChannel(const char* lpszChannelName);

Unicode (Windows)
INT CreateChannel(LPCWSTR lpszChannelName);
int ipworksmq_amqpclassic_createchannel(void* lpObj, const char* lpszChannelName);
int CreateChannel(const QString& qsChannelName);

Remarks

This method creates a new channel with the name ChannelName and adds it to the Channel* properties. If a channel with the given ChannelName already exists, an error will be thrown.

Connecting and Creating a Channel // The examples in this documentation use a RabbitMQ server, which requires SASL Plain auth. amqpc1.AuthScheme = AmqpclassicAuthSchemes.smSASLPlain; amqpc1.User = "guest"; amqpc1.Password = "guest"; amqpc1.SSLEnabled = true; amqpc1.ConnectTo("amqpclassic.test-server.com", 5671); amqpc1.CreateChannel("channel");

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DeclareExchange Method (AMQPClassic Class)

Verifies that an exchange exists, potentially creating it if necessary.

Syntax

ANSI (Cross Platform)
int DeclareExchange(const char* lpszChannelName, const char* lpszExchangeName, const char* lpszExchangeType, int bPassive, int bDurable, int bAutoDelete, int bNoWait);

Unicode (Windows)
INT DeclareExchange(LPCWSTR lpszChannelName, LPCWSTR lpszExchangeName, LPCWSTR lpszExchangeType, BOOL bPassive, BOOL bDurable, BOOL bAutoDelete, BOOL bNoWait);
int ipworksmq_amqpclassic_declareexchange(void* lpObj, const char* lpszChannelName, const char* lpszExchangeName, const char* lpszExchangeType, int bPassive, int bDurable, int bAutoDelete, int bNoWait);
int DeclareExchange(const QString& qsChannelName, const QString& qsExchangeName, const QString& qsExchangeType, bool bPassive, bool bDurable, bool bAutoDelete, bool bNoWait);

Remarks

This method is used to verify that an exchange named ExchangeName exists; and potentially creates it if no such exchange exists.

ChannelName controls what channel the class will send the request over. While any channel can technically be used, keep in mind that the server will close it if a channel error occurs. For this reason, it is good practice to make requests such as this one using a channel that is not involved in message publishing or consumption.

ExchangeName must be a non-empty string consisting only of letters, digits, hyphens, underscores, periods, and colons. It must be no longer than 255 characters, and must not begin with amq. unless the Passive parameter is True.

ExchangeType specifies the exchange type. All servers support the direct and fanout exchange types, and most should also support the topic and header exchange types. Some servers may support additional, custom exchange types as well. Refer to your server's documentation for more information about each exchange type, and to determine what exchange types it supports other than direct and fanout.

If Passive is True, the server will only verify that an exchange with the given ExchangeName actually exists (regardless of how it is configured).

If Passive is False, and no exchange named ExchangeName currently exists, the server will create one.

If Passive is False, and there is a preexisting exchange named ExchangeName, the server will verify that its current configuration matches the given parameters and arguments.

Durable specifies what happens to the exchange in the event of a server restart. Durable exchanges will be recreated, while non-durable (transient) exchanges will not.

AutoDelete specifies whether the server should automatically delete the exchange when all queues have been unbound from it. Note that this parameter is only sent if the RabbitMQCompatible configuration setting is enabled; it is ignored otherwise.

The NoWait parameter, if True, will cause the server to execute the request asynchronously. For asynchronous request handling, the server only sends back a response in case of an error.

Additional arguments may be sent with this request by adding them to the Argument* properties. Arguments are server-dependent; refer to your server's documentation to determine if any additional arguments apply for this request.

An exception is thrown if no channel with the given ChannelName exists, or if the server returns an error because:

  • One of the parameter constraints described above was violated.
  • One of the verification cases described above fails.
  • The value passed for ExchangeType did not correspond to an exchange type supported by the server.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Declaring an Exchange // Declare a direct-type exchange. amqpc1.DeclareExchange("channel", "MyExchange", "direct", false, false, false, false);

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DeclareQueue Method (AMQPClassic Class)

Verifies that a queue exists, potentially creating it if necessary.

Syntax

ANSI (Cross Platform)
int DeclareQueue(const char* lpszChannelName, const char* lpszQueueName, int bPassive, int bDurable, int bExclusive, int bAutoDelete, int bNoWait);

Unicode (Windows)
INT DeclareQueue(LPCWSTR lpszChannelName, LPCWSTR lpszQueueName, BOOL bPassive, BOOL bDurable, BOOL bExclusive, BOOL bAutoDelete, BOOL bNoWait);
int ipworksmq_amqpclassic_declarequeue(void* lpObj, const char* lpszChannelName, const char* lpszQueueName, int bPassive, int bDurable, int bExclusive, int bAutoDelete, int bNoWait);
int DeclareQueue(const QString& qsChannelName, const QString& qsQueueName, bool bPassive, bool bDurable, bool bExclusive, bool bAutoDelete, bool bNoWait);

Remarks

This method is used to verify that a queue named QueueName exists; and potentially creates it if no such queue exists.

After each successful call to this method, the class populates the QueueMessageCount property, as well as the QueueConsumerCount and QueueName configuration settings. Refer to each one for more information.

ChannelName controls what channel the class will send the request over. While any channel can technically be used, keep in mind that the server will close it if a channel error occurs. For this reason, it is good practice to make requests such as this one using a channel that is not involved in message publishing or consumption.

If creating a new queue, empty string can be passed for QueueName to have the server automatically generate a name for the new queue (which can then be retrieved using the QueueName configuration setting). In all other cases, QueueName must be a non-empty string consisting only of letters, digits, hyphens, underscores, periods, and colons. It must be no longer than 255 characters, and must not begin with amq. unless the Passive parameter is True.

If Passive is True, the server will only verify that a queue with the given QueueName actually exists (regardless of how it is configured).

If Passive is False, and no queue named QueueName currently exists, the server will create one.

If Passive is False, and there is a preexisting queue named QueueName, the server will verify that its current configuration matches the given parameters and arguments.

Durable specifies what happens to the queue in the event of a server restart. Durable queue will be recreated, while non-durable (transient) queue will not. (Note that the messages in durable queues will still be lost unless they are marked as persistent.)

Exclusive, if True, indicates that the queue may only be accessed by the current connection. Exclusive queues are deleted when the current connection closes.

AutoDelete specifies whether the server should automatically delete the queue when all consumers have finished using it. (Note that auto-delete queues aren't eligible for deletion until after a consumer attaches to them for the first time.)

The NoWait parameter, if True, will cause the server to execute the request asynchronously. For asynchronous request handling, the server only sends back a response in case of an error.

Additional arguments may be sent with this request by adding them to the Argument* properties. Arguments are server-dependent; refer to your server's documentation to determine if any additional arguments apply for this request.

An exception is thrown if no channel with the given ChannelName exists, if QueueName empty string and NoWait is True, or if the server returns an error because:

  • One of the parameter constraints described above was violated.
  • One of the verification cases described above fails.
  • An attempt was made to verify (i.e., the Passive parameter was True) another connection's exclusive queue.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Declaring a Queue // Declare a queue. amqpc1.DeclareQueue("channel", "MyQueue", false, false, false, false, false);

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DeleteExchange Method (AMQPClassic Class)

Deletes an exchange.

Syntax

ANSI (Cross Platform)
int DeleteExchange(const char* lpszChannelName, const char* lpszExchangeName, int bIfUnused, int bNoWait);

Unicode (Windows)
INT DeleteExchange(LPCWSTR lpszChannelName, LPCWSTR lpszExchangeName, BOOL bIfUnused, BOOL bNoWait);
int ipworksmq_amqpclassic_deleteexchange(void* lpObj, const char* lpszChannelName, const char* lpszExchangeName, int bIfUnused, int bNoWait);
int DeleteExchange(const QString& qsChannelName, const QString& qsExchangeName, bool bIfUnused, bool bNoWait);

Remarks

This method is used to delete an exchange.

ChannelName controls what channel the class will send the request over. While any channel can technically be used, keep in mind that the server will close it if a channel error occurs. For this reason, it is good practice to make requests such as this one using a channel that is not involved in message publishing or consumption.

ExchangeName must be a non-empty string consisting only of letters, digits, hyphens, underscores, periods, and colons. It must be no longer than 255 characters, and must not begin with amq..

When IfUnused is True, the server will only delete the exchange if no queues are bound to it.

The NoWait parameter, if True, will cause the server to execute the request asynchronously. For asynchronous request handling, the server only sends back a response in case of an error.

An exception is thrown if no channel with the given ChannelName exists, or if the server returns an error because:

  • The value passed for ExchangeName fails one or more of the constraints described above.
  • No exchange named ExchangeName exists. (This does not apply for RabbitMQ; attempting to delete a non-existent exchange will always succeed.)
  • The IfUnused parameter was True, but the exchange still had one or more queues bound to it.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DeleteQueue Method (AMQPClassic Class)

Deletes a queue.

Syntax

ANSI (Cross Platform)
int DeleteQueue(const char* lpszChannelName, const char* lpszQueueName, int bIfUnused, int bIfEmpty, int bNoWait);

Unicode (Windows)
INT DeleteQueue(LPCWSTR lpszChannelName, LPCWSTR lpszQueueName, BOOL bIfUnused, BOOL bIfEmpty, BOOL bNoWait);
int ipworksmq_amqpclassic_deletequeue(void* lpObj, const char* lpszChannelName, const char* lpszQueueName, int bIfUnused, int bIfEmpty, int bNoWait);
int DeleteQueue(const QString& qsChannelName, const QString& qsQueueName, bool bIfUnused, bool bIfEmpty, bool bNoWait);

Remarks

This method is used to delete the queue named QueueName.

After each successful call to this method, the class populates the QueueMessageCount property with the number of messages deleted along with the queue. (Note that this does not occur if the NoWait parameter is set to True.)

ChannelName controls what channel the class will send the request over. While any channel can technically be used, keep in mind that the server will close it if a channel error occurs. For this reason, it is good practice to make requests such as this one using a channel that is not involved in message publishing or consumption.

QueueName must be a non-empty string consisting only of letters, digits, hyphens, underscores, periods, and colons. It must be no longer than 255 characters, and must not begin with amq..

When IfUnused is True, the server will only delete the queue if no consumers are attached to it.

When IfEmpty is True, the server will only delete the queue if it has no messages in it. (When IfEmpty is False, servers will typically move any remaining messages to a dead-letter queue, if one is available.)

The NoWait parameter, if True, will cause the server to execute the request asynchronously. For asynchronous request handling, the server only sends back a response in case of an error.

An exception is thrown if no channel with the given ChannelName exists, or if the server returns an error because:

  • The value passed for QueueName fails one or more of the constraints described above.
  • No queue named QueueName exists. (This does not apply for RabbitMQ; attempting to delete a non-existent queue will always succeed.)
  • The IfUnused parameter was True, but the queue still had one or more consumers attached to it.
  • The IfEmpty parameter was True, but the queue still had one or more messages in it.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Disconnect Method (AMQPClassic Class)

This method disconnects from the remote host.

Syntax

ANSI (Cross Platform)
int Disconnect();

Unicode (Windows)
INT Disconnect();
int ipworksmq_amqpclassic_disconnect(void* lpObj);
int Disconnect();

Remarks

This method disconnects from the remote host. Calling this method is equivalent to setting the Connected property to False.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DoEvents Method (AMQPClassic Class)

Processes events from the internal message queue.

Syntax

ANSI (Cross Platform)
int DoEvents();

Unicode (Windows)
INT DoEvents();
int ipworksmq_amqpclassic_doevents(void* lpObj);
int DoEvents();

Remarks

When DoEvents is called, the class processes any available events. If no events are available, it waits for a preset period of time, and then returns.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

EnablePublishConfirms Method (AMQPClassic Class)

Enables publish confirmations mode for a channel.

Syntax

ANSI (Cross Platform)
int EnablePublishConfirms(const char* lpszChannelName, int bNoWait);

Unicode (Windows)
INT EnablePublishConfirms(LPCWSTR lpszChannelName, BOOL bNoWait);
int ipworksmq_amqpclassic_enablepublishconfirms(void* lpObj, const char* lpszChannelName, int bNoWait);
int EnablePublishConfirms(const QString& qsChannelName, bool bNoWait);

Remarks

This method enables publish confirmations mode for the channel with the given ChannelName.

While a channel is in publish confirmations mode, the server will acknowledge each message published by the class. The class will wait to fire the MessageOut event until it receives this acknowledgement. (Note that this mode is only available when the RabbitMQCompatible configuration setting is enabled.)

Note that a channel will stay in publish confirmations mode, once enabled, until it is deleted.

The NoWait parameter, if True, will cause the server to execute the request asynchronously. For asynchronous request handling, the server only sends back a response in case of an error.

An exception is thrown if the RabbitMQCompatible configuration setting is currently False, if no channel with the given ChannelName exists, or if EnableTransactionMode has been called for the specified channel previously.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

EnableTransactionMode Method (AMQPClassic Class)

Enables transaction mode for a channel.

Syntax

ANSI (Cross Platform)
int EnableTransactionMode(const char* lpszChannelName);

Unicode (Windows)
INT EnableTransactionMode(LPCWSTR lpszChannelName);
int ipworksmq_amqpclassic_enabletransactionmode(void* lpObj, const char* lpszChannelName);
int EnableTransactionMode(const QString& qsChannelName);

Remarks

This method enables transaction mode for the channel with the given ChannelName.

While a channel is in transaction mode, all messages published and acknowledgements sent over it will be part of a transaction, and the server will wait to process them until the transaction is either committed or rolled back.

To commit the current transaction on a channel, call CommitTransaction; and to roll it back (and discard the messages and acknowledgements that were part of it), call RollbackTransaction.

Keep in mind that, according to the AMQP 0.9.1 specification:

  • A new transaction is always started immediately after committing or rolling back the current one, which means that...
  • ...a channel will stay in transaction mode, once enabled, until it is deleted.
  • Transactions are only guaranteed to be atomic if all messages published and acknowledgements sent affect a single queue.
  • Any messages published on a channel in transaction mode that have the Mandatory or Immediate flags set are not guaranteed to be included in the transaction.

An exception is thrown if no channel with the given ChannelName exists, or if EnablePublishConfirms has been called for the specified channel previously.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

FetchMessage Method (AMQPClassic Class)

Attempts to fetch a message from a given queue.

Syntax

ANSI (Cross Platform)
int FetchMessage(const char* lpszChannelName, const char* lpszQueueName, int bNoAck);

Unicode (Windows)
INT FetchMessage(LPCWSTR lpszChannelName, LPCWSTR lpszQueueName, BOOL bNoAck);
int ipworksmq_amqpclassic_fetchmessage(void* lpObj, const char* lpszChannelName, const char* lpszQueueName, int bNoAck);
int FetchMessage(const QString& qsChannelName, const QString& qsQueueName, bool bNoAck);

Remarks

This method attempts to fetch a message from the queue named QueueName over the channel named ChannelName.

If a message is fetched as a result of this method being called, it is immediately added to the IncomingMessage* properties, the ReceivedMessage* properties are populated, and the MessageIn event fires.

Even if no message gets fetched, the MessageIn event will still fire as long as the request was successful. The server returns the number of available messages in the specified queue in response to all successful fetch requests, and that count is exposed by MessageIn event's MessageCount parameter. Refer to the MessageIn event for more information.

QueueName must be a non-empty string consisting only of letters, digits, hyphens, underscores, periods, and colons. It must be no longer than 255 characters.

The NoAck parameter controls whether the server will expect the class to acknowledge the fetched message. Refer to MessageIn for more information about acknowledging messages.

An exception is thrown if no channel with the given ChannelName exists, or if the server returns an error because:

  • No queue with the given QueueName exists.
  • The specified queue exists, but is locked or otherwise unavailable to consume from (e.g., an exclusive consumer might be attached to it).

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Receiving a Message // MessageIn event handler. amqpc1.OnMessageIn += (s, e) => { if (e.MessageCount == -1) { // The server pushed a message to us asynchronously due to a consumer we created. Console.WriteLine("The server pushed this message to us via consumer '" + e.ConsumerTag + "':"); Console.WriteLine(amqpc1.ReceivedMessage.Body); } else if (e.DeliveryTag > 0) { // We pulled a message from a queue with the FetchMessage() method. Console.WriteLine("Message successfully pulled:"); Console.WriteLine(amqpc1.ReceivedMessage.Body); Console.WriteLine(e.MessageCount + " messages are still available to pull."); } else { // We tried to pull a message, but there were none available to pull. Console.WriteLine("No messages available to pull."); } }; // Attach a consumer to "MyQueue". amqpc1.Consume("channel", "MyQueue", "consumerTag", false, true, false, false); // Or, try to fetch a message from "MyQueue". amqpc1.FetchMessage("channel", "MyQueue", true);

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Interrupt Method (AMQPClassic Class)

Interrupt the current action and disconnects from the remote host.

Syntax

ANSI (Cross Platform)
int Interrupt();

Unicode (Windows)
INT Interrupt();
int ipworksmq_amqpclassic_interrupt(void* lpObj);
int Interrupt();

Remarks

This method will interrupt the current method (if applicable) and cause the class to disconnect from the remote host.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

PublishMessage Method (AMQPClassic Class)

Publishes a message.

Syntax

ANSI (Cross Platform)
int PublishMessage(const char* lpszChannelName, const char* lpszExchangeName, const char* lpszRoutingKey, int bMandatory, int bImmediate);

Unicode (Windows)
INT PublishMessage(LPCWSTR lpszChannelName, LPCWSTR lpszExchangeName, LPCWSTR lpszRoutingKey, BOOL bMandatory, BOOL bImmediate);
int ipworksmq_amqpclassic_publishmessage(void* lpObj, const char* lpszChannelName, const char* lpszExchangeName, const char* lpszRoutingKey, int bMandatory, int bImmediate);
int PublishMessage(const QString& qsChannelName, const QString& qsExchangeName, const QString& qsRoutingKey, bool bMandatory, bool bImmediate);

Remarks

This method is used to publish the message specified by the Message* properties to the exchange named ExchangeName over the channel specified by ChannelName.

When this method is called, the message to publish is immediately added to the OutgoingMessage* properties, and the MessageOut event fires once it has been sent (or, if the specified channel is in "publish confirmations" mode, after the server has acknowledged it).

Note that all AMQP 0.9.1 servers automatically bind all queues to their default exchange (which is always a direct exchange with no name) using each queue's name as the binding's routing key. This makes it easy to send a message to a specific queue without having to declare bindings; just call PublishMessage, pass empty string for ExchangeName, and the name of the desired queue for RoutingKey.

Note that messages published over channels which are in either transaction or "publish confirmations" mode may be handled differently than they would be on a channel in normal mode. Refer to the EnableTransactionMode and EnablePublishConfirms methods for more information about what each mode entails.

The server's default exchange may be specified by passing empty string for ExchangeName. Otherwise, ExchangeName must be a non-empty string consisting only of letters, digits, hyphens, underscores, periods, and colons. It must be no longer than 255 characters.

The RoutingKey parameter specifies the message's routing key. Whether this parameter needs to be non-empty, and what format it should have if so, depends on the type of exchange it is being sent to. Some exchange types may use information included with the message, such as its MessageHeaders. Refer to BindQueue for more information about how routing keys are used, and to your server's documentation for information on what it expects.

The Mandatory parameter controls what the server should do if the message can't be routed to any queue (either because it isn't eligible for any of the queues bound to the specified exchange because of how their bindings are configured, or because no queues are bound to the exchange in the first place). If True, the server will return the message, at which point the MessageReturned event will be fired. If False, the server will drop the message.

The Immediate parameter controls what the server should do if the message can't be immediately delivered to any consumer (either because it cannot be routed to a queue, or because the queues it can be routed to have no active consumers attached to them). If True, the server will return the message, at which point the MessageReturned event will be fired. If False, the server will queue the message if possible, or drop it if not.

An exception is thrown if no channel with the given ChannelName exists, or if the server returns an error because:

  • The value passed for ExchangeName fails one or more of the constraints described above.
  • No exchange named ExchangeName exists.
  • The message is rejected for some reason.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Publishing a Message amqpc1.Message.Body = "Hello, world!"; // Publish a message to the server's default (no-name) exchange, using the name of a specific queue as the routing key. amqpc1.PublishMessage("channel", "", "MyQueue", false, false); // Publish a message to the "MyExchange" exchange, using the routing key "MyRoutingKey". amqpc1.PublishMessage("channel", "MyExchange", "MyRoutingKey", false, false);

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

PurgeQueue Method (AMQPClassic Class)

Purges all messages from a queue.

Syntax

ANSI (Cross Platform)
int PurgeQueue(const char* lpszChannelName, const char* lpszQueueName, int bNoWait);

Unicode (Windows)
INT PurgeQueue(LPCWSTR lpszChannelName, LPCWSTR lpszQueueName, BOOL bNoWait);
int ipworksmq_amqpclassic_purgequeue(void* lpObj, const char* lpszChannelName, const char* lpszQueueName, int bNoWait);
int PurgeQueue(const QString& qsChannelName, const QString& qsQueueName, bool bNoWait);

Remarks

This method purges all messages from the queue named QueueName. Messages which have been sent but are awaiting acknowledgement are not affected.

After each successful call to this method, the class populates the QueueMessageCount property with the number of messages purged from the queue. (Note that this does not occur if the NoWait parameter is set to True.)

ChannelName controls what channel the class will send the request over. While any channel can technically be used, keep in mind that the server will close it if a channel error occurs. For this reason, it is good practice to make requests such as this one using a channel that is not involved in message publishing or consumption.

QueueName must be a non-empty string consisting only of letters, digits, hyphens, underscores, periods, and colons. It must be no longer than 255 characters.

The NoWait parameter, if True, will cause the server to execute the request asynchronously. For asynchronous request handling, the server only sends back a response in case of an error.

An exception is thrown if no channel with the given ChannelName exists, or if the server returns an error because no queue named QueueName exists.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Recover Method (AMQPClassic Class)

Request that the server redeliver all messages on a given channel that have not been acknowledged.

Syntax

ANSI (Cross Platform)
int Recover(const char* lpszChannelName, int bRequeue);

Unicode (Windows)
INT Recover(LPCWSTR lpszChannelName, BOOL bRequeue);
int ipworksmq_amqpclassic_recover(void* lpObj, const char* lpszChannelName, int bRequeue);
int Recover(const QString& qsChannelName, bool bRequeue);

Remarks

This method is used to request that the server redeliver all messages that it previously sent to the class on the channel specified by ChannelName which are still awaiting acknowledgement.

A call to this method may cause the server to redeliver zero or more messages over the channel specified by ChannelName. Those messages will cause the MessageIn event to fire with its Redelivered event parameter set to True.

The Requeue parameter controls how the server should attempt to redeliver the messages awaiting acknowledgement. If set to True, the server will simple put the messages back on their original queues, and they will be delivered like any other queued messages (potentially to other consumers). If set to False, the server will redeliver the messages to the class directly.

An exception is thrown if no channel with the given ChannelName exists, or (for RabbitMQ only) if the server returns an error because Requeue was False. (RabbitMQ only supports setting Requeue to True.)

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

Reset Method (AMQPClassic Class)

Reset the class.

Syntax

ANSI (Cross Platform)
int Reset();

Unicode (Windows)
INT Reset();
int ipworksmq_amqpclassic_reset(void* lpObj);
int Reset();

Remarks

This method will reset the class's properties to their default values.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ResetMessage Method (AMQPClassic Class)

Resets the Message properties.

Syntax

ANSI (Cross Platform)
int ResetMessage();

Unicode (Windows)
INT ResetMessage();
int ipworksmq_amqpclassic_resetmessage(void* lpObj);
int ResetMessage();

Remarks

This method resets the Message* properties.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

RollbackTransaction Method (AMQPClassic Class)

Rolls back the current transaction for a channel.

Syntax

ANSI (Cross Platform)
int RollbackTransaction(const char* lpszChannelName);

Unicode (Windows)
INT RollbackTransaction(LPCWSTR lpszChannelName);
int ipworksmq_amqpclassic_rollbacktransaction(void* lpObj, const char* lpszChannelName);
int RollbackTransaction(const QString& qsChannelName);

Remarks

This method rolls back the current transaction for the channel with the given ChannelName. A new transaction is started immediately after the current one is rolled back.

Refer to EnableTransactionMode for more information about transactions.

An exception is thrown if a channel with the given ChannelName doesn't exist, or if the server returns an error because the channel does not have transaction mode enabled.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

SetChannelAccept Method (AMQPClassic Class)

Disables or enables message acceptance for a given channel.

Syntax

ANSI (Cross Platform)
int SetChannelAccept(const char* lpszChannelName, int bAccept);

Unicode (Windows)
INT SetChannelAccept(LPCWSTR lpszChannelName, BOOL bAccept);
int ipworksmq_amqpclassic_setchannelaccept(void* lpObj, const char* lpszChannelName, int bAccept);
int SetChannelAccept(const QString& qsChannelName, bool bAccept);

Remarks

This method is used to disable and enable message acceptance for the channel specified by ChannelName.

A channel is always configured to accept messages when first created, allowing the server to freely deliver messages to the class for any consumers that have been created on that channel using the Consume method.

Disabling message acceptance for a channel prevents the server from automatically delivering messages to the class over it; however, it is still possible to use the FetchMessage method to synchronously attempt to retrieve a message on a channel with message acceptance disabled.

An exception is thrown if no channel with the given ChannelName exists, or (for RabbitMQ only) if the server returns an error because Accept was False. (RabbitMQ does not support disabling message acceptance.)

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

SetQoS Method (AMQPClassic Class)

Requests a specific quality of service (QoS).

Syntax

ANSI (Cross Platform)
int SetQoS(const char* lpszChannelName, int iPrefetchSize, int iPrefetchCount, int bGlobal);

Unicode (Windows)
INT SetQoS(LPCWSTR lpszChannelName, INT iPrefetchSize, INT iPrefetchCount, BOOL bGlobal);
int ipworksmq_amqpclassic_setqos(void* lpObj, const char* lpszChannelName, int iPrefetchSize, int iPrefetchCount, int bGlobal);
int SetQoS(const QString& qsChannelName, int iPrefetchSize, int iPrefetchCount, bool bGlobal);

Remarks

This method is used to request a specific quality of service for a certain scope. When the PrefetchSize and/or PrefetchCount are set for a certain scope, the server will limit how many messages it sends to the class before stopping to wait for or or more of them to be acknowledged.

ChannelName is the name of the channel which is used to send the request. Depending on the server and what Global is set to, it may also be significant to the request itself (refer to the Global parameter's description, below, for more information).

PrefetchSize specifies a window size in bytes; i.e., the server will stop sending messages if the total size of all of the currently unacknowledged messages already sent, plus the size of the next message that could be sent, exceeds PrefetchSize bytes. A PrefetchSize of 0 indicates no limit. (Note that RabbitMQ does not support prefetch size limits.)

PrefetchCount specifies the number of unacknowledged messages the server will limit itself to sending. A PrefetchCount of 0 indicates no limit.

Global specifies the scope which the QoS request should apply to. It is interpreted differently based on whether the server is RabbitMQ or not. Refer to this table:

Global is...RabbitMQ Other Servers
False QoS will be applied individually to each new consumer on the specified channel (existing consumers are unaffected).QoS applied to all existing and new consumers on the specified channel.
True QoS applied to all existing and new consumers on the specified channel. QoS applied to all existing and new consumers on the whole connection.

Keep the following things in mind when using QoS:

  • The limits specified by a QoS request only affect messages that require acknowledgement.
  • How the server chooses to handle interactions between QoS settings at different scopes is server-dependent.

An exception is thrown if no channel with the given ChannelName exists, or if the server returns an error for any reason.

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

UnbindQueue Method (AMQPClassic Class)

Removes a previously-created queue binding.

Syntax

ANSI (Cross Platform)
int UnbindQueue(const char* lpszChannelName, const char* lpszQueueName, const char* lpszExchangeName, const char* lpszRoutingKey);

Unicode (Windows)
INT UnbindQueue(LPCWSTR lpszChannelName, LPCWSTR lpszQueueName, LPCWSTR lpszExchangeName, LPCWSTR lpszRoutingKey);
int ipworksmq_amqpclassic_unbindqueue(void* lpObj, const char* lpszChannelName, const char* lpszQueueName, const char* lpszExchangeName, const char* lpszRoutingKey);
int UnbindQueue(const QString& qsChannelName, const QString& qsQueueName, const QString& qsExchangeName, const QString& qsRoutingKey);

Remarks

This method removes a previously-created queue binding.

ChannelName controls what channel the class will send the request over. While any channel can technically be used, keep in mind that the server will close it if a channel error occurs. For this reason, it is good practice to make requests such as this one using a channel that is not involved in message publishing or consumption.

QueueName must be a non-empty string consisting only of letters, digits, hyphens, underscores, periods, and colons. It must be no longer than 255 characters.

The server's default exchange may be specified by passing empty string for ExchangeName. Otherwise, ExchangeName must be a non-empty string consisting only of letters, digits, hyphens, underscores, periods, and colons. It must be no longer than 255 characters.

RoutingKey should be the same routing key used when originally creating the binding that is to be removed. For bindings created using arguments instead of a routing key, the Argument* properties must contain the same items used originally instead.

An exception is thrown if no channel with the given ChannelName exists, or if the server returns an error because:

  • No queue with the given QueueName exists. (Does not apply to RabbitMQ.)
  • No exchange with the given ExchangeName exists. (Does not apply to RabbitMQ.)

Note that in AMQP, server errors are grouped into "connection errors" and "channel errors", and both are fatal. That is, if the server returns a channel error, it will then close the channel which caused the error; and if it returns a connection error, it will then close the connection. The AMQPClassic class's Error Codes page includes AMQP's various connection and channel errors.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ChannelReadyToSend Event (AMQPClassic Class)

Fires when a channel is ready to send messages.

Syntax

ANSI (Cross Platform)
virtual int FireChannelReadyToSend(AMQPClassicChannelReadyToSendEventParams *e);
typedef struct {
const char *ChannelName; int reserved; } AMQPClassicChannelReadyToSendEventParams;
Unicode (Windows) virtual INT FireChannelReadyToSend(AMQPClassicChannelReadyToSendEventParams *e);
typedef struct {
LPCWSTR ChannelName; INT reserved; } AMQPClassicChannelReadyToSendEventParams;
#define EID_AMQPCLASSIC_CHANNELREADYTOSEND 1

virtual INT IPWORKSMQ_CALL FireChannelReadyToSend(LPSTR &lpszChannelName);
class AMQPClassicChannelReadyToSendEventParams {
public:
  const QString &ChannelName();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void ChannelReadyToSend(AMQPClassicChannelReadyToSendEventParams *e);
// Or, subclass AMQPClassic and override this emitter function. virtual int FireChannelReadyToSend(AMQPClassicChannelReadyToSendEventParams *e) {...}

Remarks

This event fires when a channel is ready to send messages.

ChannelName is the name of the channel.

Connected Event (AMQPClassic Class)

This event is fired immediately after a connection completes (or fails).

Syntax

ANSI (Cross Platform)
virtual int FireConnected(AMQPClassicConnectedEventParams *e);
typedef struct {
int StatusCode;
const char *Description; int reserved; } AMQPClassicConnectedEventParams;
Unicode (Windows) virtual INT FireConnected(AMQPClassicConnectedEventParams *e);
typedef struct {
INT StatusCode;
LPCWSTR Description; INT reserved; } AMQPClassicConnectedEventParams;
#define EID_AMQPCLASSIC_CONNECTED 2

virtual INT IPWORKSMQ_CALL FireConnected(INT &iStatusCode, LPSTR &lpszDescription);
class AMQPClassicConnectedEventParams {
public:
  int StatusCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Connected(AMQPClassicConnectedEventParams *e);
// Or, subclass AMQPClassic and override this emitter function. virtual int FireConnected(AMQPClassicConnectedEventParams *e) {...}

Remarks

If the connection is made normally, StatusCode is 0 and Description is "OK".

If the connection fails, StatusCode has the error code returned by the Transmission Control Protocol (TCP)/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error.

Please refer to the Error Codes section for more information.

ConnectionStatus Event (AMQPClassic Class)

This event is fired to indicate changes in the connection state.

Syntax

ANSI (Cross Platform)
virtual int FireConnectionStatus(AMQPClassicConnectionStatusEventParams *e);
typedef struct {
const char *ConnectionEvent;
int StatusCode;
const char *Description; int reserved; } AMQPClassicConnectionStatusEventParams;
Unicode (Windows) virtual INT FireConnectionStatus(AMQPClassicConnectionStatusEventParams *e);
typedef struct {
LPCWSTR ConnectionEvent;
INT StatusCode;
LPCWSTR Description; INT reserved; } AMQPClassicConnectionStatusEventParams;
#define EID_AMQPCLASSIC_CONNECTIONSTATUS 3

virtual INT IPWORKSMQ_CALL FireConnectionStatus(LPSTR &lpszConnectionEvent, INT &iStatusCode, LPSTR &lpszDescription);
class AMQPClassicConnectionStatusEventParams {
public:
  const QString &ConnectionEvent();

  int StatusCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void ConnectionStatus(AMQPClassicConnectionStatusEventParams *e);
// Or, subclass AMQPClassic and override this emitter function. virtual int FireConnectionStatus(AMQPClassicConnectionStatusEventParams *e) {...}

Remarks

The ConnectionStatus event is fired when the connection state changes: for example, completion of a firewall or proxy connection or completion of a security handshake.

The ConnectionEvent parameter indicates the type of connection event. Values may include the following:

Firewall connection complete.
Secure Sockets Layer (SSL) or S/Shell handshake complete (where applicable).
Remote host connection complete.
Remote host disconnected.
SSL or S/Shell connection broken.
Firewall host disconnected.

StatusCode has the error code returned by the Transmission Control Protocol (TCP)/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error.

Disconnected Event (AMQPClassic Class)

This event is fired when a connection is closed.

Syntax

ANSI (Cross Platform)
virtual int FireDisconnected(AMQPClassicDisconnectedEventParams *e);
typedef struct {
int StatusCode;
const char *Description; int reserved; } AMQPClassicDisconnectedEventParams;
Unicode (Windows) virtual INT FireDisconnected(AMQPClassicDisconnectedEventParams *e);
typedef struct {
INT StatusCode;
LPCWSTR Description; INT reserved; } AMQPClassicDisconnectedEventParams;
#define EID_AMQPCLASSIC_DISCONNECTED 4

virtual INT IPWORKSMQ_CALL FireDisconnected(INT &iStatusCode, LPSTR &lpszDescription);
class AMQPClassicDisconnectedEventParams {
public:
  int StatusCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Disconnected(AMQPClassicDisconnectedEventParams *e);
// Or, subclass AMQPClassic and override this emitter function. virtual int FireDisconnected(AMQPClassicDisconnectedEventParams *e) {...}

Remarks

If the connection is broken normally, StatusCode is 0 and Description is "OK".

If the connection is broken for any other reason, StatusCode has the error code returned by the Transmission Control Protocol (TCP/IP) subsystem. Description contains a description of this code. The value of StatusCode is equal to the value of the TCP/IP error.

Please refer to the Error Codes section for more information.

Error Event (AMQPClassic Class)

Information about errors during data delivery.

Syntax

ANSI (Cross Platform)
virtual int FireError(AMQPClassicErrorEventParams *e);
typedef struct {
int ErrorCode;
const char *Description; int reserved; } AMQPClassicErrorEventParams;
Unicode (Windows) virtual INT FireError(AMQPClassicErrorEventParams *e);
typedef struct {
INT ErrorCode;
LPCWSTR Description; INT reserved; } AMQPClassicErrorEventParams;
#define EID_AMQPCLASSIC_ERROR 5

virtual INT IPWORKSMQ_CALL FireError(INT &iErrorCode, LPSTR &lpszDescription);
class AMQPClassicErrorEventParams {
public:
  int ErrorCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Error(AMQPClassicErrorEventParams *e);
// Or, subclass AMQPClassic and override this emitter function. virtual int FireError(AMQPClassicErrorEventParams *e) {...}

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the class fails with an error.

ErrorCode contains an error code and Description contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

Log Event (AMQPClassic Class)

Fires once for each log message.

Syntax

ANSI (Cross Platform)
virtual int FireLog(AMQPClassicLogEventParams *e);
typedef struct {
int LogLevel;
const char *Message;
const char *LogType; int reserved; } AMQPClassicLogEventParams;
Unicode (Windows) virtual INT FireLog(AMQPClassicLogEventParams *e);
typedef struct {
INT LogLevel;
LPCWSTR Message;
LPCWSTR LogType; INT reserved; } AMQPClassicLogEventParams;
#define EID_AMQPCLASSIC_LOG 6

virtual INT IPWORKSMQ_CALL FireLog(INT &iLogLevel, LPSTR &lpszMessage, LPSTR &lpszLogType);
class AMQPClassicLogEventParams {
public:
  int LogLevel();

  const QString &Message();

  const QString &LogType();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Log(AMQPClassicLogEventParams *e);
// Or, subclass AMQPClassic and override this emitter function. virtual int FireLog(AMQPClassicLogEventParams *e) {...}

Remarks

This event fires once for each log message generated by the class. The verbosity is controlled by the LogLevel setting.

LogLevel indicates the level of the Message. Possible values are:

0 (None) No events are logged.
1 (Info - default) Informational events are logged.
2 (Verbose) Detailed data is logged.
3 (Debug) Debug data is logged.

LogType identifies the type of log entry. Possible values are:

  • Info: General information about the class.
  • Frame: Frame status messages.

MessageIn Event (AMQPClassic Class)

Fires when a message is received; as well as when an attempt is made to fetch a message from a currently empty queue.

Syntax

ANSI (Cross Platform)
virtual int FireMessageIn(AMQPClassicMessageInEventParams *e);
typedef struct {
const char *ChannelName;
const char *ConsumerTag;
int64 DeliveryTag;
int Redelivered;
const char *ExchangeName;
const char *RoutingKey;
int MessageCount;
int Accept; int reserved; } AMQPClassicMessageInEventParams;
Unicode (Windows) virtual INT FireMessageIn(AMQPClassicMessageInEventParams *e);
typedef struct {
LPCWSTR ChannelName;
LPCWSTR ConsumerTag;
LONG64 DeliveryTag;
BOOL Redelivered;
LPCWSTR ExchangeName;
LPCWSTR RoutingKey;
INT MessageCount;
INT Accept; INT reserved; } AMQPClassicMessageInEventParams;
#define EID_AMQPCLASSIC_MESSAGEIN 7

virtual INT IPWORKSMQ_CALL FireMessageIn(LPSTR &lpszChannelName, LPSTR &lpszConsumerTag, LONG64 &lDeliveryTag, BOOL &bRedelivered, LPSTR &lpszExchangeName, LPSTR &lpszRoutingKey, INT &iMessageCount, INT &iAccept);
class AMQPClassicMessageInEventParams {
public:
  const QString &ChannelName();

  const QString &ConsumerTag();

  qint64 DeliveryTag();

  bool Redelivered();

  const QString &ExchangeName();

  const QString &RoutingKey();

  int MessageCount();

  int Accept();
  void SetAccept(int iAccept);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void MessageIn(AMQPClassicMessageInEventParams *e);
// Or, subclass AMQPClassic and override this emitter function. virtual int FireMessageIn(AMQPClassicMessageInEventParams *e) {...}

Remarks

This event fires anytime a message is received. There are two possible ways for the class to receive a message:

  • Messages can be asynchronously pushed to the class from the server. At any point in time, the server may push a message to the class from a queue that the Consume method has been used to attach a consumer to.
  • Messages can be synchronously pulled from the server by the class. The FetchMessage method is used to attempt to pull (or "fetch") messages from a specific queue.

This event also fires anytime FetchMessage is called against a queue that currently has no messages available to pull. This is a special case, and results in only the ChannelName and MessageCount event parameters being populated.

Other than that special case, and any exceptions noted below, this event's parameters are populated the same way regardless of the manner in which messages are received.

ChannelName always reflects the name of the associated channel.

ConsumerTag reflects the consumer tag associated with the consumer that caused the server to push the message to the class. (ConsumerTag is always empty for messages pulled from the server by FetchMessage since no consumers are involved.)

DeliveryTag reflects the server-assigned, channel-specific delivery tag number for the incoming message.

Redelivered reflects whether the server is redelivering a message that is has delivered previously.

ExchangeName reflects the name of the exchange to which the incoming message was originally published. (If the message was originally published to the server's default exchange, whose name is always the empty string, ExchangeName will also be empty.)

RoutingKey reflects the routing key that the message was originally published with.

MessageCount is always -1 when this event fires due to a message being pushed to the class by the server. When this event fires as a result of FetchMessage being called, MessageCount reflects the number of messages still available in the queue the class tried to pull a message from (even if there were no messages available to pull).

The Accept parameter can be set to control how the class responds to the incoming message, if it needs to be acknowledged (if the message doesn't need to be acknowledged, the value set to the Accept parameter is ignored). Valid values are:

  • 0 - default: Accept the message; send a positive acknowledgement.
  • 1: Silently accept the message; don't send any acknowledgement.
  • 2: Accept the message; send a cumulative positive acknowledgement coving this, and all previously unacknowledged, messages.
  • 3: Reject the message; send a negative acknowledgement for it, and instruct the server not to return it to the queue.
  • 4: Reject the message; send a negative acknowledgement for it, and instruct the server to return it to the queue.
If the RabbitMQCompatible configuration setting is enabled, then the NackMultiple configuration setting can be used to control whether the two "reject" options (3 and 4) should function as cumulative or singular negative acknowledgements. By default NackMultiple is disabled, and all negative acknowledgements are singular.

If the value provided for the Accept parameter isn't one of those described above, the default (0) will be used instead.

Receiving a Message // MessageIn event handler. amqpc1.OnMessageIn += (s, e) => { if (e.MessageCount == -1) { // The server pushed a message to us asynchronously due to a consumer we created. Console.WriteLine("The server pushed this message to us via consumer '" + e.ConsumerTag + "':"); Console.WriteLine(amqpc1.ReceivedMessage.Body); } else if (e.DeliveryTag > 0) { // We pulled a message from a queue with the FetchMessage() method. Console.WriteLine("Message successfully pulled:"); Console.WriteLine(amqpc1.ReceivedMessage.Body); Console.WriteLine(e.MessageCount + " messages are still available to pull."); } else { // We tried to pull a message, but there were none available to pull. Console.WriteLine("No messages available to pull."); } }; // Attach a consumer to "MyQueue". amqpc1.Consume("channel", "MyQueue", "consumerTag", false, true, false, false); // Or, try to fetch a message from "MyQueue". amqpc1.FetchMessage("channel", "MyQueue", true);

MessageOut Event (AMQPClassic Class)

Fires when a message is published.

Syntax

ANSI (Cross Platform)
virtual int FireMessageOut(AMQPClassicMessageOutEventParams *e);
typedef struct {
const char *ChannelName;
const char *ExchangeName;
const char *RoutingKey;
const char *MessageId;
int64 DeliveryTag;
int Accepted; int reserved; } AMQPClassicMessageOutEventParams;
Unicode (Windows) virtual INT FireMessageOut(AMQPClassicMessageOutEventParams *e);
typedef struct {
LPCWSTR ChannelName;
LPCWSTR ExchangeName;
LPCWSTR RoutingKey;
LPCWSTR MessageId;
LONG64 DeliveryTag;
BOOL Accepted; INT reserved; } AMQPClassicMessageOutEventParams;
#define EID_AMQPCLASSIC_MESSAGEOUT 8

virtual INT IPWORKSMQ_CALL FireMessageOut(LPSTR &lpszChannelName, LPSTR &lpszExchangeName, LPSTR &lpszRoutingKey, LPSTR &lpszMessageId, LONG64 &lDeliveryTag, BOOL &bAccepted);
class AMQPClassicMessageOutEventParams {
public:
  const QString &ChannelName();

  const QString &ExchangeName();

  const QString &RoutingKey();

  const QString &MessageId();

  qint64 DeliveryTag();

  bool Accepted();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void MessageOut(AMQPClassicMessageOutEventParams *e);
// Or, subclass AMQPClassic and override this emitter function. virtual int FireMessageOut(AMQPClassicMessageOutEventParams *e) {...}

Remarks

This event fires anytime a message is published; or after an outgoing message has been acknowledged by the server, if the channel it was published on is in "publish confirmations" mode.

ChannelName reflects the name of the channel the message was published on.

ExchangeName reflects the name of the exchange the message was published to. (If the message was published to the server's default exchange, whose name is always the empty string, ExchangeName will also be empty.)

RoutingKey reflects the routing key that the message was published with.

MessageId reflects the message's unique Id, if one was set.

DeliveryTag reflects the channel-specific delivery tag number for the message. (Note that this is only populated for messages published on a channel in "publish confirmations" mode; otherwise it will be set to -1.)

Accepted indicates whether the server published back a positive True or negative False acknowledgement for the outgoing message. Note that this is only valid for messages published on a channel in "publish confirmations" mode; Accepted will always be True messages published on a channel in normal or transaction mode.

Refer to EnablePublishConfirms for more information about channels in "publish confirmations" mode.

MessageReturned Event (AMQPClassic Class)

Fires if a previously published message is returned by the server due to it being undeliverable.

Syntax

ANSI (Cross Platform)
virtual int FireMessageReturned(AMQPClassicMessageReturnedEventParams *e);
typedef struct {
const char *ChannelName;
int ReplyCode;
const char *ReplyText;
const char *ExchangeName;
const char *RoutingKey; int reserved; } AMQPClassicMessageReturnedEventParams;
Unicode (Windows) virtual INT FireMessageReturned(AMQPClassicMessageReturnedEventParams *e);
typedef struct {
LPCWSTR ChannelName;
INT ReplyCode;
LPCWSTR ReplyText;
LPCWSTR ExchangeName;
LPCWSTR RoutingKey; INT reserved; } AMQPClassicMessageReturnedEventParams;
#define EID_AMQPCLASSIC_MESSAGERETURNED 9

virtual INT IPWORKSMQ_CALL FireMessageReturned(LPSTR &lpszChannelName, INT &iReplyCode, LPSTR &lpszReplyText, LPSTR &lpszExchangeName, LPSTR &lpszRoutingKey);
class AMQPClassicMessageReturnedEventParams {
public:
  const QString &ChannelName();

  int ReplyCode();

  const QString &ReplyText();

  const QString &ExchangeName();

  const QString &RoutingKey();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void MessageReturned(AMQPClassicMessageReturnedEventParams *e);
// Or, subclass AMQPClassic and override this emitter function. virtual int FireMessageReturned(AMQPClassicMessageReturnedEventParams *e) {...}

Remarks

This event fires if the server returns a previously published message because it could not deliver it. Typically, messages are only undeliverable in one of the following situations:

  • The message was originally published with the Mandatory option enabled, but there were no queues it could be routed to.
  • The message was originally published with the Immediate option enabled, but there were no consumers it could be delivered to immediately on any queue it was routed to (or there were no queues it could be routed to).

The ReceivedMessage* properties will be populated with the returned message.

ChannelName reflects the name of the channel the message was originally published on.

ReplyCode will be an AMQP error code that indicates the reason why the message was returned. (Tip: The AMQPClassic class's Error Codes page includes the various AMQP error codes.)

ReplyText will be a message with further details about why the message was returned.

ExchangeName reflects the name of the exchange to which the message was originally published. (If the message was originally published to the server's default exchange, whose name is always the empty string, ExchangeName will also be empty.)

RoutingKey reflects the routing key that the message was originally published with.

SSLServerAuthentication Event (AMQPClassic Class)

Fired after the server presents its certificate to the client.

Syntax

ANSI (Cross Platform)
virtual int FireSSLServerAuthentication(AMQPClassicSSLServerAuthenticationEventParams *e);
typedef struct {
const char *CertEncoded; int lenCertEncoded;
const char *CertSubject;
const char *CertIssuer;
const char *Status;
int Accept; int reserved; } AMQPClassicSSLServerAuthenticationEventParams;
Unicode (Windows) virtual INT FireSSLServerAuthentication(AMQPClassicSSLServerAuthenticationEventParams *e);
typedef struct {
LPCSTR CertEncoded; INT lenCertEncoded;
LPCWSTR CertSubject;
LPCWSTR CertIssuer;
LPCWSTR Status;
BOOL Accept; INT reserved; } AMQPClassicSSLServerAuthenticationEventParams;
#define EID_AMQPCLASSIC_SSLSERVERAUTHENTICATION 10

virtual INT IPWORKSMQ_CALL FireSSLServerAuthentication(LPSTR &lpCertEncoded, INT &lenCertEncoded, LPSTR &lpszCertSubject, LPSTR &lpszCertIssuer, LPSTR &lpszStatus, BOOL &bAccept);
class AMQPClassicSSLServerAuthenticationEventParams {
public:
  const QByteArray &CertEncoded();

  const QString &CertSubject();

  const QString &CertIssuer();

  const QString &Status();

  bool Accept();
  void SetAccept(bool bAccept);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void SSLServerAuthentication(AMQPClassicSSLServerAuthenticationEventParams *e);
// Or, subclass AMQPClassic and override this emitter function. virtual int FireSSLServerAuthentication(AMQPClassicSSLServerAuthenticationEventParams *e) {...}

Remarks

This event is where the client can decide whether to continue with the connection process or not. The Accept parameter is a recommendation on whether to continue or close the connection. This is just a suggestion: application software must use its own logic to determine whether to continue or not.

When Accept is False, Status shows why the verification failed (otherwise, Status contains the string "OK"). If it is decided to continue, you can override and accept the certificate by setting the Accept parameter to True.

SSLStatus Event (AMQPClassic Class)

Shows the progress of the secure connection.

Syntax

ANSI (Cross Platform)
virtual int FireSSLStatus(AMQPClassicSSLStatusEventParams *e);
typedef struct {
const char *Message; int reserved; } AMQPClassicSSLStatusEventParams;
Unicode (Windows) virtual INT FireSSLStatus(AMQPClassicSSLStatusEventParams *e);
typedef struct {
LPCWSTR Message; INT reserved; } AMQPClassicSSLStatusEventParams;
#define EID_AMQPCLASSIC_SSLSTATUS 11

virtual INT IPWORKSMQ_CALL FireSSLStatus(LPSTR &lpszMessage);
class AMQPClassicSSLStatusEventParams {
public:
  const QString &Message();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void SSLStatus(AMQPClassicSSLStatusEventParams *e);
// Or, subclass AMQPClassic and override this emitter function. virtual int FireSSLStatus(AMQPClassicSSLStatusEventParams *e) {...}

Remarks

The event is fired for informational and logging purposes only. Used to track the progress of the connection.

Config Settings (AMQPClassic Class)

The class accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the Config method.

AMQPClassic Config Settings

AuthorizationIdentity:   The value to use as the authorization identity when SASL authentication is used.

When AuthScheme is set to smSASLPlain you may use this setting to specify an authorization identity to be used when authenticating.

ConsumerTag:   The consumer tag associated with the most recently created consumer.

Each time the Consume method is called to create a new consumer, the server will send back a confirmation which includes the consumer tag value for that consumer, and the class will update this setting's value accordingly.

It is possible to pass empty string for the ConsumerTag parameter when calling the Consume method, in which case the server will auto-generate a consumer tag.

Locale:   The desired message locale to use.

This setting specifies the desired message locale, which will be compared to the server's list of supported message locales during the connection process. A connection attempt will fail if this setting is set to a locale not supported by the server. This setting cannot be changed while connected.

The default value is "en_US", which is supported by all AMQP 0.9.1 servers.

Locales:   The message locales supported by the server.

After a connection attempt (regardless of its success) this setting will reflect the various message locales that the server supports.

The value of this setting is formatted as a space-separated list of message locales.

LogLevel:   The level of detail that is logged.

This setting controls the level of detail that is logged through the Log event. Possible values are:

0 (None) No events are logged.
1 (Info - default) Informational events are logged.
2 (Verbose) Detailed data is logged.
3 (Debug) Debug data is logged.

MaxChannelCount:   The maximum number of channels.

This setting specifies the maximum number of channels which can be opened. This setting cannot be changed while connected.

The default is 65535 (0xFFFF). Note that this value is negotiated during the connection process; if the value provided by the server is lower than the specified value, the server's value will be used instead (and this setting will be updated accordingly).

MaxFrameSize:   The maximum frame size.

This setting specifies the maximum frame size (in bytes) that the class will accept. This setting cannot be changed while connected.

The default is 2147483647 (0x7FFFFFFF). Note that this value is negotiated during the connection process; if the value provided by the server is lower than the specified value, the server's value will be used instead (and this setting will be updated accordingly).

Mechanisms:   The authentication mechanisms supported by the server.

After a connection attempt (regardless of its success) this setting will reflect the various authentication mechanisms that the server supports.

The value of this setting is formatted as a space-separated list of authentication mechanisms.

NackMultiple:   Whether negative acknowledgments should be cumulative or not.

If the RabbitMQCompatible configuration setting is enabled, this setting controls whether the negative message acknowledgments the class sends based on the value of the MessageIn event's Accept parameter should be cumulative (True) or singular (False - default).

This setting does nothing if the RabbitMQCompatible configuration setting is disabled.

ProtocolVersion:   The AMQP protocol version to conform to.

This setting can be queried to determine what AMQP protocol version the class conforms to.

Note: Currently this setting will always return "0.9.1", and cannot be changed. The AMQP class may be used instead of this one if AMQP 1.0 support is needed.

QueueConsumerCount:   The consumer count associated with the most recently created (or verified) queue.

Each time the DeclareQueue method is called successfully (and with its NoWait parameter set to False), the server returns information about the queue in question, causing the class to update this setting with the number of consumers attached to that queue.

QueueName:   The queue name associated with the most recently created (or verified) queue.

Each time the DeclareQueue method is called successfully (and with its NoWait parameter set to False), the server returns information about the queue in question, causing the class to update this setting with the name of that queue.

It is possible to pass empty string for the QueueName parameter when calling the DeclareQueue method to have the server create a new queue with an automatically generated name, which can then be retrieved by querying this setting.

RabbitMQCompatible:   Whether to operate in a mode compatible with RabbitMQ.

This setting controls whether the class will operate in such a way as to be compatible with RabbitMQ. When enabled, the class complies with the parts of the RabbitMQ AMQP 0.9.1 Errata that are relevant to AMQP 0.9.1 client implementations, as well as offering additional features to support RabbitMQ-specific extensions to the AMQP 0.9.1 specification.

The default is True.

TCPClient Config Settings

ConnectionTimeout:   Sets a separate timeout value for establishing a connection.

When set, this configuration setting allows you to specify a different timeout value for establishing a connection. Otherwise, the class will use Timeout for establishing a connection and transmitting/receiving data.

FirewallAutoDetect:   Tells the class whether or not to automatically detect and use firewall system settings, if available.

This configuration setting is provided for use by classs that do not directly expose Firewall properties.

FirewallHost:   Name or IP address of firewall (optional).

If a FirewallHost is given, requested connections will be authenticated through the specified firewall when connecting.

If the FirewallHost setting is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, the FirewallHost setting is set to the corresponding address. If the search is not successful, an error is returned.

Note: This setting is provided for use by classs that do not directly expose Firewall properties.

FirewallPassword:   Password to be used if authentication is to be used when connecting through the firewall.

If FirewallHost is specified, the FirewallUser and FirewallPassword settings are used to connect and authenticate to the given firewall. If the authentication fails, the class fails with an error.

Note: This setting is provided for use by classs that do not directly expose Firewall properties.

FirewallPort:   The TCP port for the FirewallHost;.

The FirewallPort is set automatically when FirewallType is set to a valid value.

Note: This configuration setting is provided for use by classs that do not directly expose Firewall properties.

FirewallType:   Determines the type of firewall to connect through.

The appropriate values are as follows:

0No firewall (default setting).
1Connect through a tunneling proxy. FirewallPort is set to 80.
2Connect through a SOCKS4 Proxy. FirewallPort is set to 1080.
3Connect through a SOCKS5 Proxy. FirewallPort is set to 1080.
10Connect through a SOCKS4A Proxy. FirewallPort is set to 1080.

Note: This setting is provided for use by classs that do not directly expose Firewall properties.

FirewallUser:   A user name if authentication is to be used connecting through a firewall.

If the FirewallHost is specified, the FirewallUser and FirewallPassword settings are used to connect and authenticate to the Firewall. If the authentication fails, the class fails with an error.

Note: This setting is provided for use by classs that do not directly expose Firewall properties.

KeepAliveInterval:   The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received.

When set, TCPKeepAlive will automatically be set to True. A TCP keep-alive packet will be sent after a period of inactivity as defined by KeepAliveTime. If no acknowledgment is received from the remote host, the keep-alive packet will be sent again. This configuration setting specifies the interval at which the successive keep-alive packets are sent in milliseconds. This system default if this value is not specified here is 1 second.

Note: This value is not applicable in macOS.

KeepAliveRetryCount:   The number of keep-alive packets to be sent before the remotehost is considered disconnected.

When set, TCPKeepAlive will automatically be set to True. A TCP keep-alive packet will be sent after a period of inactivity as defined by KeepAliveTime. If no acknowledgment is received from the remote host, the keep-alive packet will be sent again. This configuration setting specifies the number of times that the keep-alive packets will be sent before the remote host is considered disconnected. The system default if this value is not specified here is 9.

Note: This configuration setting is only available in the Unix platform. It is not supported in masOS or FreeBSD.

KeepAliveTime:   The inactivity time in milliseconds before a TCP keep-alive packet is sent.

When set, TCPKeepAlive will automatically be set to True. By default, the operating system will determine the time a connection is idle before a Transmission Control Protocol (TCP) keep-alive packet is sent. This system default if this value is not specified here is 2 hours. In many cases, a shorter interval is more useful. Set this value to the desired interval in milliseconds.

Linger:   When set to True, connections are terminated gracefully.

This property controls how a connection is closed. The default is True.

In the case that Linger is True (default), two scenarios determine how long the connection will linger. In the first, if LingerTime is 0 (default), the system will attempt to send pending data for a connection until the default IP timeout expires.

In the second scenario, if LingerTime is a positive value, the system will attempt to send pending data until the specified LingerTime is reached. If this attempt fails, then the system will reset the connection.

The default behavior (which is also the default mode for stream sockets) might result in a long delay in closing the connection. Although the class returns control immediately, the system could hold system resources until all pending data are sent (even after your application closes).

Setting this property to False forces an immediate disconnection. If you know that the other side has received all the data you sent (e.g., by a client acknowledgment), setting this property to False might be the appropriate course of action.

LingerTime:   Time in seconds to have the connection linger.

LingerTime is the time, in seconds, the socket connection will linger. This value is 0 by default, which means it will use the default IP timeout.

LocalHost:   The name of the local host through which connections are initiated or accepted.

The LocalHost setting contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface.

If the class is connected, the LocalHost setting shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).

LocalPort:   The port in the local host where the class binds.

This must be set before a connection is attempted. It instructs the class to bind to a specific port (or communication endpoint) in the local machine.

Setting this to 0 (default) enables the system to choose a port at random. The chosen port will be shown by LocalPort after the connection is established.

LocalPort cannot be changed once a connection is made. Any attempt to set this when a connection is active will generate an error.

This; setting is useful when trying to connect to services that require a trusted port in the client side. An example is the remote shell (rsh) service in UNIX systems.

MaxLineLength:   The maximum amount of data to accumulate when no EOL is found.

MaxLineLength is the size of an internal buffer, which holds received data while waiting for an EOL string.

If an EOL string is found in the input stream before MaxLineLength bytes are received, the DataIn event is fired with the EOL parameter set to True, and the buffer is reset.

If no EOL is found, and MaxLineLength bytes are accumulated in the buffer, the DataIn event is fired with the EOL parameter set to False, and the buffer is reset.

The minimum value for MaxLineLength is 256 bytes. The default value is 2048 bytes.

MaxTransferRate:   The transfer rate limit in bytes per second.

This configuration setting can be used to throttle outbound TCP traffic. Set this to the number of bytes to be sent per second. By default, this is not set and there is no limit.

ProxyExceptionsList:   A semicolon separated list of hosts and IPs to bypass when using a proxy.

This configuration setting optionally specifies a semicolon-separated list of hostnames or IP addresses to bypass when a proxy is in use. When requests are made to hosts specified in this property, the proxy will not be used. For instance:

www.google.com;www.nsoftware.com

TCPKeepAlive:   Determines whether or not the keep alive socket option is enabled.

If set to True, the socket's keep-alive option is enabled and keep-alive packets will be sent periodically to maintain the connection. Set KeepAliveTime and KeepAliveInterval to configure the timing of the keep-alive packets.

Note: This value is not applicable in Java.

TcpNoDelay:   Whether or not to delay when sending packets.

When true, the socket will send all data that is ready to send at once. When false, the socket will send smaller buffered packets of data at small intervals. This is known as the Nagle algorithm.

By default, this config is set to false.

UseIPv6:   Whether to use IPv6.

When set to 0 (default), the class will use IPv4 exclusively. When set to 1, the class will use IPv6 exclusively. To instruct the class to prefer IPv6 addresses, but use IPv4 if IPv6 is not supported on the system, this setting should be set to 2. The default value is 0. Possible values are:

0 IPv4 Only
1 IPv6 Only
2 IPv6 with IPv4 fallback

SSL Config Settings

LogSSLPackets:   Controls whether SSL packets are logged when using the internal security API.

When SSLProvider is set to Internal, this setting controls whether SSL packets should be logged. By default, this setting is False, as it is only useful for debugging purposes.

When enabled, SSL packet logs are output using the SSLStatus event, which will fire each time an SSL packet is sent or received.

Enabling this setting has no effect if SSLProvider is set to Platform.

OpenSSLCADir:   The path to a directory containing CA certificates.

This functionality is available only when the provider is OpenSSL.

The path set by this property should point to a directory containing CA certificates in PEM format. The files each contain one CA certificate. The files are looked up by the CA subject name hash value, which must hence be available. If more than one CA certificate with the same name hash value exist, the extension must be different (e.g. 9d66eef0.0, 9d66eef0.1 etc). OpenSSL recommends to use the c_rehash utility to create the necessary links. Please refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.

OpenSSLCAFile:   Name of the file containing the list of CA's trusted by your application.

This functionality is available only when the provider is OpenSSL.

The file set by this property should contain a list of CA certificates in PEM format. The file can contain several CA certificates identified by

-----BEGIN CERTIFICATE-----

... (CA certificate in base64 encoding) ...

-----END CERTIFICATE-----

sequences. Before, between, and after the certificates text is allowed which can be used e.g. for descriptions of the certificates. Please refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.

OpenSSLCipherList:   A string that controls the ciphers to be used by SSL.

This functionality is available only when the provider is OpenSSL.

The format of this string is described in the OpenSSL man page ciphers(1) section "CIPHER LIST FORMAT". Please refer to it for details. The default string "DEFAULT" is determined at compile time and is normally equivalent to "ALL:!ADH:RC4+RSA:+SSLv2:@STRENGTH".

OpenSSLPrngSeedData:   The data to seed the pseudo random number generator (PRNG).

This functionality is available only when the provider is OpenSSL.

By default OpenSSL uses the device file "/dev/urandom" to seed the PRNG and setting OpenSSLPrngSeedData is not required. If set, the string specified is used to seed the PRNG.

ReuseSSLSession:   Determines if the SSL session is reused.

If set to true, the class will reuse the context if and only if the following criteria are met:

  • The target host name is the same.
  • The system cache entry has not expired (default timeout is 10 hours).
  • The application process that calls the function is the same.
  • The logon session is the same.
  • The instance of the class is the same.

SSLCACertFilePaths:   The paths to CA certificate files on Unix/Linux.

This setting specifies the paths on disk to CA certificate files on Unix/Linux.

The value is formatted as a list of paths separated by semicolons. The class will check for the existence of each file in the order specified. When a file is found the CA certificates within the file will be loaded and used to determine the validity of server or client certificates.

The default value is:

/etc/ssl/ca-bundle.pem;/etc/pki/tls/certs/ca-bundle.crt;/etc/ssl/certs/ca-certificates.crt;/etc/pki/tls/cacert.pem

SSLCACerts:   A newline separated list of CA certificate to use during SSL client authentication.

This setting specifies one or more CA certificates to be included in the request when performing SSL client authentication. Some servers require the entire chain, including CA certificates, to be presented when performing SSL client authentication. The value of this setting is a newline (CrLf) separated list of certificates. For instance:

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

SSLCipherStrength:   The minimum cipher strength used for bulk encryption.

This minimum cipher strength largely dependent on the security modules installed on the system. If the cipher strength specified is not supported, an error will be returned when connections are initiated.

Please note that this setting contains the minimum cipher strength requested from the security library. The actual cipher strength used for the connection is shown by the SSLStatus event.

Use this setting with caution. Requesting a lower cipher strength than necessary could potentially cause serious security vulnerabilities in your application.

When the provider is OpenSSL, SSLCipherStrength is currently not supported. This functionality is instead made available through the OpenSSLCipherList config setting.

SSLEnabledCipherSuites:   The cipher suite to be used in an SSL negotiation.

The enabled cipher suites to be used in SSL negotiation.

By default, the enabled cipher suites will include all available ciphers ("*").

The special value "*" means that the class will pick all of the supported cipher suites. If SSLEnabledCipherSuites is set to any other value, only the specified cipher suites will be considered.

Multiple cipher suites are separated by semicolons.

Example values when SSLProvider is set to Platform: obj.config("SSLEnabledCipherSuites=*"); obj.config("SSLEnabledCipherSuites=CALG_AES_256"); obj.config("SSLEnabledCipherSuites=CALG_AES_256;CALG_3DES"); Possible values when SSLProvider is set to Platform include:

  • CALG_3DES
  • CALG_3DES_112
  • CALG_AES
  • CALG_AES_128
  • CALG_AES_192
  • CALG_AES_256
  • CALG_AGREEDKEY_ANY
  • CALG_CYLINK_MEK
  • CALG_DES
  • CALG_DESX
  • CALG_DH_EPHEM
  • CALG_DH_SF
  • CALG_DSS_SIGN
  • CALG_ECDH
  • CALG_ECDH_EPHEM
  • CALG_ECDSA
  • CALG_ECMQV
  • CALG_HASH_REPLACE_OWF
  • CALG_HUGHES_MD5
  • CALG_HMAC
  • CALG_KEA_KEYX
  • CALG_MAC
  • CALG_MD2
  • CALG_MD4
  • CALG_MD5
  • CALG_NO_SIGN
  • CALG_OID_INFO_CNG_ONLY
  • CALG_OID_INFO_PARAMETERS
  • CALG_PCT1_MASTER
  • CALG_RC2
  • CALG_RC4
  • CALG_RC5
  • CALG_RSA_KEYX
  • CALG_RSA_SIGN
  • CALG_SCHANNEL_ENC_KEY
  • CALG_SCHANNEL_MAC_KEY
  • CALG_SCHANNEL_MASTER_HASH
  • CALG_SEAL
  • CALG_SHA
  • CALG_SHA1
  • CALG_SHA_256
  • CALG_SHA_384
  • CALG_SHA_512
  • CALG_SKIPJACK
  • CALG_SSL2_MASTER
  • CALG_SSL3_MASTER
  • CALG_SSL3_SHAMD5
  • CALG_TEK
  • CALG_TLS1_MASTER
  • CALG_TLS1PRF
Example values when SSLProvider is set to Internal: obj.config("SSLEnabledCipherSuites=*"); obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA"); obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA;TLS_DH_ANON_WITH_AES_128_CBC_SHA"); Possible values when SSLProvider is set to Internal include:
  • TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
  • TLS_RSA_WITH_AES_256_GCM_SHA384
  • TLS_RSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
  • TLS_DHE_DSS_WITH_AES_256_GCM_SHA384
  • TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
  • TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
  • TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
  • TLS_DH_RSA_WITH_AES_128_GCM_SHA256 (Not Recommended)
  • TLS_DH_RSA_WITH_AES_256_GCM_SHA384 (Not Recommended)
  • TLS_DH_DSS_WITH_AES_128_GCM_SHA256 (Not Recommended)
  • TLS_DH_DSS_WITH_AES_256_GCM_SHA384 (Not Recommended)
  • TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
  • TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
  • TLS_RSA_WITH_AES_256_CBC_SHA256
  • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
  • TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
  • TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
  • TLS_RSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
  • TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
  • TLS_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
  • TLS_DHE_DSS_WITH_AES_256_CBC_SHA
  • TLS_RSA_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
  • TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_DHE_DSS_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA
  • TLS_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_RSA_WITH_DES_CBC_SHA
  • TLS_DHE_RSA_WITH_DES_CBC_SHA
  • TLS_DHE_DSS_WITH_DES_CBC_SHA
  • TLS_RSA_WITH_RC4_128_MD5
  • TLS_RSA_WITH_RC4_128_SHA

When TLS 1.3 is negotiated (see SSLEnabledProtocols) only the following cipher suites are supported:

  • TLS_AES_256_GCM_SHA384
  • TLS_CHACHA20_POLY1305_SHA256
  • TLS_AES_128_GCM_SHA256

SSLEnabledCipherSuites is used together with SSLCipherStrength.

SSLEnabledProtocols:   Used to enable/disable the supported security protocols.

Used to enable/disable the supported security protocols.

Not all supported protocols are enabled by default (the value of this setting is 4032). If you want more granular control over the enabled protocols, you can set this property to the binary 'OR' of one or more of the following values:

TLS1.312288 (Hex 3000)
TLS1.23072 (Hex C00) (Default)
TLS1.1768 (Hex 300) (Default)
TLS1 192 (Hex C0) (Default)
SSL3 48 (Hex 30)
SSL2 12 (Hex 0C)

SSLEnabledProtocols - TLS 1.3 Notes

By default when TLS 1.3 is enabled the class will use the internal TLS implementation.

In editions which are designed to run on Windows SSLProvider can be set to Platform to use the platform implementation instead of the internal implementation. When configured in this manner, please note that the platform provider is only supported on Windows 11 / Windows Server 2022 and up. The default internal provider is available on all platforms and is not restricted to any specific OS version.

If set to 1 (Platform provider) please be aware of the following notes:

  • The platform provider is only available on Windows 11 / Windows Server 2022 and up.
  • SSLEnabledCipherSuites and other similar SSL configuration settings are not supported.
  • If SSLEnabledProtocols includes both TLS 1.3 and TLS 1.2 the above restrictions are still applicable even if TLS 1.2 is negotiated. Enabling TLS 1.3 with the platform provider changes the implementation used for all TLS versions.

SSLEnableRenegotiation:   Whether the renegotiation_info SSL extension is supported.

This setting specifies whether the renegotiation_info SSL extension will be used in the request when using the internal security API. This setting is true by default, but can be set to false to disable the extension.

This setting is only applicable when SSLProvider is set to Internal.

SSLIncludeCertChain:   Whether the entire certificate chain is included in the SSLServerAuthentication event.

This setting specifies whether the Encoded parameter of the SSLServerAuthentication event contains the full certificate chain. By default this value is False and only the leaf certificate will be present in the Encoded parameter of the SSLServerAuthentication event.

If set to True all certificates returned by the server will be present in the Encoded parameter of the SSLServerAuthentication event. This includes the leaf certificate, any intermediate certificate, and the root certificate.

SSLKeyLogFile:   The location of a file where per-session secrets are written for debugging purposes.

This setting optionally specifies the full path to a file on disk where per-session secrets are stored for debugging purposes.

When set, the class will save the session secrets in the same format as the SSLKEYLOGFILE environment variable functionality used by most major browsers and tools such as Chrome, Firefox, and cURL. This file can then be used in tools such as Wireshark to decrypt TLS traffice for debugging purposes. When writing to this file the class will only append, it will not overwrite previous values.

Note: This setting is only applicable when SSLProvider is set to Internal.

SSLNegotiatedCipher:   Returns the negotiated ciphersuite.

Returns the ciphersuite negotiated during the SSL handshake.

Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipher[connId]");

SSLNegotiatedCipherStrength:   Returns the negotiated ciphersuite strength.

Returns the strength of the ciphersuite negotiated during the SSL handshake.

Note: For server components (e.g.TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipherStrength[connId]");

SSLNegotiatedCipherSuite:   Returns the negotiated ciphersuite.

Returns the ciphersuite negotiated during the SSL handshake represented as a single string.

Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipherSuite[connId]");

SSLNegotiatedKeyExchange:   Returns the negotiated key exchange algorithm.

Returns the key exchange algorithm negotiated during the SSL handshake.

Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedKeyExchange[connId]");

SSLNegotiatedKeyExchangeStrength:   Returns the negotiated key exchange algorithm strength.

Returns the strenghth of the key exchange algorithm negotiated during the SSL handshake.

Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedKeyExchangeStrength[connId]");

SSLNegotiatedVersion:   Returns the negotiated protocol version.

Returns the protocol version negotiated during the SSL handshake.

Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedVersion[connId]");

SSLSecurityFlags:   Flags that control certificate verification.

The following flags are defined (specified in hexadecimal notation). They can be or-ed together to exclude multiple conditions:

0x00000001Ignore time validity status of certificate.
0x00000002Ignore time validity status of CTL.
0x00000004Ignore non-nested certificate times.
0x00000010Allow unknown Certificate Authority.
0x00000020Ignore wrong certificate usage.
0x00000100Ignore unknown certificate revocation status.
0x00000200Ignore unknown CTL signer revocation status.
0x00000400Ignore unknown Certificate Authority revocation status.
0x00000800Ignore unknown Root revocation status.
0x00008000Allow test Root certificate.
0x00004000Trust test Root certificate.
0x80000000Ignore non-matching CN (certificate CN not-matching server name).

This functionality is currently not available when the provider is OpenSSL.

SSLServerCACerts:   A newline separated list of CA certificate to use during SSL server certificate validation.

This setting optionally specifies one or more CA certificates to be used when verifying the server certificate. When verifying the server's certificate the certificates trusted by the system will be used as part of the verification process. If the server's CA certificates are not installed to the trusted system store, they may be specified here so they are included when performing the verification process. This setting should only be set if the server's CA certificates are not already trusted on the system and cannot be installed to the trusted system store.

The value of this setting is a newline (CrLf) separated list of certificates. For instance:

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
..
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

TLS12SignatureAlgorithms:   Defines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal.

This setting specifies the allowed server certificate signature algorithms when SSLProvider is set to Internal and SSLEnabledProtocols is set to allow TLS 1.2.

When specified the class will verify that the server certificate signature algorithm is among the values specified in this setting. If the server certificate signature algorithm is unsupported the class fails with an error.

The format of this value is a comma separated list of hash-signature combinations. For instance: TCPClient.SSLProvider = TCPClientSSLProviders.sslpInternal; TCPClient.Config("SSLEnabledProtocols=3072"); //TLS 1.2 TCPClient.Config("TLS12SignatureAlgorithms=sha256-rsa,sha256-dsa,sha1-rsa,sha1-dsa"); The default value for this setting is sha512-ecdsa,sha512-rsa,sha512-dsa,sha384-ecdsa,sha384-rsa,sha384-dsa,sha256-ecdsa,sha256-rsa,sha256-dsa,sha224-ecdsa,sha224-rsa,sha224-dsa,sha1-ecdsa,sha1-rsa,sha1-dsa.

In order to not restrict the server's certificate signature algorithm, specify an empty string as the value for this setting, which will cause the signature_algorithms TLS 1.2 extension to not be sent.

TLS12SupportedGroups:   The supported groups for ECC.

This setting specifies a comma separated list of named groups used in TLS 1.2 for ECC.

The default value is ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1.

When using TLS 1.2 and SSLProvider is set to Internal, the values refer to the supported groups for ECC. The following values are supported:

  • "ecdhe_secp256r1" (default)
  • "ecdhe_secp384r1" (default)
  • "ecdhe_secp521r1" (default)

TLS13KeyShareGroups:   The groups for which to pregenerate key shares.

This setting specifies a comma separated list of named groups used in TLS 1.3 for key exchange. The groups specified here will have key share data pregenerated locally before establishing a connection. This can prevent an additional round trip during the handshake if the group is supported by the server.

The default value is set to balance common supported groups and the computational resources required to generate key shares. As a result only some groups are included by default in this setting.

Note: All supported groups can always be used during the handshake even if not listed here, but if a group is used which is not present in this list it will incur an additional round trip and time to generate the key share for that group.

In most cases this setting does not need to be modified. This should only be modified if there is a specific reason to do so.

The default value is ecdhe_x25519,ecdhe_secp256r1,ecdhe_secp384r1,ffdhe_2048,ffdhe_3072

The values are ordered from most preferred to least preferred. The following values are supported:

  • "ecdhe_x25519" (default)
  • "ecdhe_x448"
  • "ecdhe_secp256r1" (default)
  • "ecdhe_secp384r1" (default)
  • "ecdhe_secp521r1"
  • "ffdhe_2048" (default)
  • "ffdhe_3072" (default)
  • "ffdhe_4096"
  • "ffdhe_6144"
  • "ffdhe_8192"

TLS13SignatureAlgorithms:   The allowed certificate signature algorithms.

This setting holds a comma separated list of allowed signature algorithms. Possible values are:

  • "ed25519" (default)
  • "ed448" (default)
  • "ecdsa_secp256r1_sha256" (default)
  • "ecdsa_secp384r1_sha384" (default)
  • "ecdsa_secp521r1_sha512" (default)
  • "rsa_pkcs1_sha256" (default)
  • "rsa_pkcs1_sha384" (default)
  • "rsa_pkcs1_sha512" (default)
  • "rsa_pss_sha256" (default)
  • "rsa_pss_sha384" (default)
  • "rsa_pss_sha512" (default)
The default value is rsa_pss_sha256,rsa_pss_sha384,rsa_pss_sha512,rsa_pkcs1_sha256,rsa_pkcs1_sha384,rsa_pkcs1_sha512,ecdsa_secp256r1_sha256,ecdsa_secp384r1_sha384,ecdsa_secp521r1_sha512,ed25519,ed448. This setting is only applicable when SSLEnabledProtocols includes TLS 1.3.
TLS13SupportedGroups:   The supported groups for (EC)DHE key exchange.

This setting specifies a comma separated list of named groups used in TLS 1.3 for key exchange. This setting should only be modified if there is a specific reason to do so.

The default value is ecdhe_x25519,ecdhe_x448,ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1,ffdhe_2048,ffdhe_3072,ffdhe_4096,ffdhe_6144,ffdhe_8192

The values are ordered from most preferred to least preferred. The following values are supported:

  • "ecdhe_x25519" (default)
  • "ecdhe_x448" (default)
  • "ecdhe_secp256r1" (default)
  • "ecdhe_secp384r1" (default)
  • "ecdhe_secp521r1" (default)
  • "ffdhe_2048" (default)
  • "ffdhe_3072" (default)
  • "ffdhe_4096" (default)
  • "ffdhe_6144" (default)
  • "ffdhe_8192" (default)

Socket Config Settings

AbsoluteTimeout:   Determines whether timeouts are inactivity timeouts or absolute timeouts.

If AbsoluteTimeout is set to True, any method which does not complete within Timeout seconds will be aborted. By default, AbsoluteTimeout is False, and the timeout is an inactivity timeout.

Note: This option is not valid for UDP ports.

FirewallData:   Used to send extra data to the firewall.

When the firewall is a tunneling proxy, use this property to send custom (additional) headers to the firewall (e.g. headers for custom authentication schemes).

InBufferSize:   The size in bytes of the incoming queue of the socket.

This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be receiving. Increasing the value of the InBufferSize setting can provide significant improvements in performance in some cases.

Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the InBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

OutBufferSize:   The size in bytes of the outgoing queue of the socket.

This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be sending. Increasing the value of the OutBufferSize setting can provide significant improvements in performance in some cases.

Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the OutBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

Trappable Errors (AMQPClassic Class)

Error Handling (C++)

Call the GetLastErrorCode() method to obtain the last called method's result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. Known error codes are listed below. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

AMQPClassic Errors

311   AMQP Channel Error content-too-large: Content too large.
312   AMQP Channel Error no-route: Cannot deliver message published with "mandatory" flag set; message cannot be routed to any queue.
313   AMQP Channel Error no-consumers: Cannot deliver message published with "immediate" flag set; all possible queues are either non-empty or have no consumers.
320   AMQP Connection Error connection-forced: Connection forced to close.
402   AMQP Connection Error invalid-path: Invalid virtual host path specified.
403   AMQP Channel Error access-refused: Attempted to work with a server entity (exchange, queue, etc.) without necessary permissions.
404   AMQP Channel Error not-found: Attempted to work with a server entity (exchange, queue, etc.) that does not exist.
405   AMQP Channel Error resource-locked: Attempted to work with a server entity (exchange, queue, etc.) that is currently locked by another client.
406   AMQP Channel Error precondition-failed: Request failed due to one or more precondition failures.
501   AMQP Connection Error frame-error: Server received an AMQP frame that it could not decode.
502   AMQP Connection Error syntax-error: Server received an AMQP frame that contained illegal values for one or more fields.
503   AMQP Connection Error command-invalid: Server received an invalid sequence of frame, attempting to perform an invalid operation.
504   AMQP Connection Error channel-error: Attempted to work with a channel that does not exist (or was not opened correctly).
505   AMQP Connection Error unexpected-frame: Server received a frame that was unexpected, typically with regards to the content header and body.
506   AMQP Connection Error resource-error: Server could not complete the request due to insufficient resources.
530   AMQP Connection Error not-allowed: Attempted to work with some server entity (exchange, queue, etc.) in a manner that is not allowed.
540   AMQP Connection Error not-implemented: Requested an operation not supported by the server.
541   AMQP Connection Error internal-error: The server encountered an internal error while attempting to process the request.
600   General AMQP protocol error. Refer to the error message for more information.
601   Cannot open another channel.
602   Cannot modify message data.
603   Cannot publish message on inactive channel.
604   Action not supported.
606   Cannot modify configuration setting.

TCPClient Errors

100   You cannot change the RemotePort at this time. A connection is in progress.
101   You cannot change the RemoteHost (Server) at this time. A connection is in progress.
102   The RemoteHost address is invalid (0.0.0.0).
104   Already connected. If you want to reconnect, close the current connection first.
106   You cannot change the LocalPort at this time. A connection is in progress.
107   You cannot change the LocalHost at this time. A connection is in progress.
112   You cannot change MaxLineLength at this time. A connection is in progress.
116   RemotePort cannot be zero. Please specify a valid service port number.
117   You cannot change the UseConnection option while the class is active.
135   Operation would block.
201   Timeout.
211   Action impossible in control's present state.
212   Action impossible while not connected.
213   Action impossible while listening.
301   Timeout.
302   Could not open file.
434   Unable to convert string to selected CodePage.
1105   Already connecting. If you want to reconnect, close the current connection first.
1117   You need to connect first.
1119   You cannot change the LocalHost at this time. A connection is in progress.
1120   Connection dropped by remote host.

SSL Errors

270   Cannot load specified security library.
271   Cannot open certificate store.
272   Cannot find specified certificate.
273   Cannot acquire security credentials.
274   Cannot find certificate chain.
275   Cannot verify certificate chain.
276   Error during handshake.
280   Error verifying certificate.
281   Could not find client certificate.
282   Could not find server certificate.
283   Error encrypting data.
284   Error decrypting data.

TCP/IP Errors

10004   [10004] Interrupted system call.
10009   [10009] Bad file number.
10013   [10013] Access denied.
10014   [10014] Bad address.
10022   [10022] Invalid argument.
10024   [10024] Too many open files.
10035   [10035] Operation would block.
10036   [10036] Operation now in progress.
10037   [10037] Operation already in progress.
10038   [10038] Socket operation on non-socket.
10039   [10039] Destination address required.
10040   [10040] Message too long.
10041   [10041] Protocol wrong type for socket.
10042   [10042] Bad protocol option.
10043   [10043] Protocol not supported.
10044   [10044] Socket type not supported.
10045   [10045] Operation not supported on socket.
10046   [10046] Protocol family not supported.
10047   [10047] Address family not supported by protocol family.
10048   [10048] Address already in use.
10049   [10049] Can't assign requested address.
10050   [10050] Network is down.
10051   [10051] Network is unreachable.
10052   [10052] Net dropped connection or reset.
10053   [10053] Software caused connection abort.
10054   [10054] Connection reset by peer.
10055   [10055] No buffer space available.
10056   [10056] Socket is already connected.
10057   [10057] Socket is not connected.
10058   [10058] Can't send after socket shutdown.
10059   [10059] Too many references, can't splice.
10060   [10060] Connection timed out.
10061   [10061] Connection refused.
10062   [10062] Too many levels of symbolic links.
10063   [10063] File name too long.
10064   [10064] Host is down.
10065   [10065] No route to host.
10066   [10066] Directory not empty
10067   [10067] Too many processes.
10068   [10068] Too many users.
10069   [10069] Disc Quota Exceeded.
10070   [10070] Stale NFS file handle.
10071   [10071] Too many levels of remote in path.
10091   [10091] Network subsystem is unavailable.
10092   [10092] WINSOCK DLL Version out of range.
10093   [10093] Winsock not loaded yet.
11001   [11001] Host not found.
11002   [11002] Non-authoritative 'Host not found' (try again or check DNS setup).
11003   [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP.
11004   [11004] Valid name, no data record (check DNS setup).

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IPWorks MQ 2022 C++ Edition - Version 22.0 [Build 8369]