IncomingMessageTopic Property

This message's topic.


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

Unicode (Windows)
LPWSTR GetIncomingMessageTopic(INT iIncomingMessageIndex);
- (NSString*)incomingMessageTopic:(int)incomingMessageIndex;

IPWORKSMQ_EXTERNAL void* IPWORKSMQ_CALL IPWorksMQ_MQTT_Get(void *lpObj, int propid, int arridx, int *lpcbVal, int64 *lpllVal);

IPWORKSMQ_EXTERNAL int IPWORKSMQ_CALL IPWorksMQ_MQTT_CheckIndex(void *lpObj, int propid, int arridx);

Default Value



This message's topic.

MQTT 5 Notes:

If this value is empty, the IncomingMessageTopicAlias property holds the assigned alias for the topic.

If this value is not empty and IncomingMessageTopicAlias is non-zero,

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


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IPWorks MQ 2020 C++ Edition - Version 20.0 [Build 8162]