IncomingMessageCorrelationData Property
Used by the sender of the request message to identify which request the response message is for when it is received.
Syntax
ANSI (Cross Platform) char* GetIncomingMessageCorrelationData(int iIncomingMessageIndex); Unicode (Windows) LPWSTR GetIncomingMessageCorrelationData(INT iIncomingMessageIndex);
- (NSString*)incomingMessageCorrelationData:(int)incomingMessageIndex;
#define PID_MQTT_INCOMINGMESSAGECORRELATIONDATA 12 IPWORKSIOT_EXTERNAL void* IPWORKSIOT_CALL IPWorksIoT_MQTT_Get(void *lpObj, int propid, int arridx, int *lpcbVal, int64 *lpllVal); IPWORKSIOT_EXTERNAL int IPWORKSIOT_CALL IPWorksIoT_MQTT_CheckIndex(void *lpObj, int propid, int arridx);
Default Value
""
Remarks
Used by the sender of the request message to identify which request the response message is for when it is received.
Valid only for MQTT 5.
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