SNPP Control
Properties Methods Events Configuration Settings Errors
The SNPP Component is used to send pages through the internet using the SNPP protocol.
Syntax
SNPP
Remarks
It is a client implementation of Simple Network Paging Protocol Version 3 as specified in RFC 1861. Service extensions level 2 are supported intrinsically and the user can access all of level 3 extensions.
SNPP allows for immediate notification of message delivery, gives absolute flexibility over the content sent to the recipient, allows the specification of multiple choice responses, etc.
To send a message the ServerName, recipient's PagerId and Message properties should be filled out (at a minimum). The Send method is then used to deliver the message.
The server's response is given in the PITrail events and by the LastReply property. Customized commands may be sent using the Command property.
Optional properties include: CallerId, ServerPort and LocalHost
Property List
The following is the full list of the properties of the control with short descriptions. Click on the links for further details.
| CallerId | The identifier of the caller. |
| Command | Used to send additional commands directly to the server. |
| Connected | Shows whether the component is connected. |
| FirewallAutoDetect | This property tells the component whether or not to automatically detect and use firewall system settings, if available. |
| FirewallType | This property determines the type of firewall to connect through. |
| FirewallHost | This property contains the name or IP address of firewall (optional). |
| FirewallPassword | This property contains a password if authentication is to be used when connecting through the firewall. |
| FirewallPort | This property contains the TCP port for the firewall Host . |
| FirewallUser | This property contains a user name if authentication is to be used connecting through a firewall. |
| Idle | The current status of the component. |
| LastReply | The last reply from the server. |
| LocalHost | The name of the local host or user-assigned IP interface through which connections are initiated or accepted. |
| Message | The message being sent (alphanumeric). |
| PagerId | The identifying number of the pager to send a Message to. |
| ServerName | The name or address of the SNPP server. |
| ServerPort | The server port for SNPP (default 444). |
| Timeout | A timeout for the component. |
Method List
The following is the full list of the methods of the control with short descriptions. Click on the links for further details.
| Config | Sets or retrieves a configuration setting . |
| Connect | Connects to an SNPP server. |
| Disconnect | Disconnects from an SNPP gateway. |
| DoEvents | Processes events from the internal message queue. |
| Interrupt | Interrupt the current method. |
| Reset | Resets the server state created during the connection. |
| Send | Sends the current message. |
Event List
The following is the full list of the events fired by the control with short descriptions. Click on the links for further details.
| ConnectionStatus | Fired to indicate changes in connection state. |
| Error | Information about errors during data delivery. |
| PITrail | Traces the commands sent to the server, and the respective replies. |
Configuration Settings
The following is a list of configuration settings for the control with short descriptions. Click on the links for further details.
| LoginID | Login ID used to authenticate with an SNPP server. |
| ConnectionTimeout | Sets a separate timeout value for establishing a connection. |
| FirewallAutoDetect | Tells the component whether or not to automatically detect and use firewall system settings, if available. |
| FirewallHost | Name or IP address of firewall (optional). |
| FirewallPassword | Password to be used if authentication is to be used when connecting through the firewall. |
| FirewallPort | The TCP port for the FirewallHost;. |
| FirewallType | Determines the type of firewall to connect through. |
| FirewallUser | A user name if authentication is to be used connecting through a firewall. |
| KeepAliveTime | The inactivity time in milliseconds before a TCP keep-alive packet is sent. |
| KeepAliveInterval | The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received. |
| Linger | When set to True, connections are terminated gracefully. |
| LingerTime | Time in seconds to have the connection linger. |
| LocalHost | The name of the local host through which connections are initiated or accepted. |
| LocalPort | The TCP port in the local host where the component binds. |
| MaxLineLength | The maximum amount of data to accumulate when no EOL is found. |
| MaxTransferRate | The transfer rate limit in bytes per second. |
| RecordLength | The length of received data records. |
| TCPKeepAlive | Determines whether or not the keep alive socket option is enabled. |
| UseIPv6 | Whether to use IPv6. |
| TcpNoDelay | Whether or not to delay when sending packets. |
| AbsoluteTimeout | Determines whether timeouts are inactivity timeouts or absolute timeouts. |
| FirewallData | Used to send extra data to the firewall. |
| InBufferSize | The size in bytes of the incoming queue of the socket. |
| OutBufferSize | The size in bytes of the outgoing queue of the socket. |
| CodePage | The system code page used for Unicode to Multibyte translations. |