1.1.18.4 Message Information
Message information can be included when calling either WDRV_WINC_MQTTPublish or WDRV_WINC_MQTTLWTSet.
Message information can also be received in a PUBLISH message via the
WDRV_WINC_MQTT_SUBSCRIBE_CALLBACK supplied to WDRV_WINC_MQTTSubscribe.
WDRV_WINC_MQTTMsgInfoDefaultSet is used to initialize a WDRV_WINC_MQTT_MSG_INFO structure, then the following functions can be used to set the selected properties:
| Name | Set Function |
|---|---|
| QoS | WDRV_WINC_MQTTMsgInfoQoSSet |
| Retain | WDRV_WINC_MQTTMsgInfoRetainSet |
| Publish Properties | WDRV_WINC_MQTTMsgInfoPubPropSet |
When a PUBLISH message is received a WDRV_WINC_MQTT_SUBSCRIBE_CALLBACK callback registered with WDRV_WINC_MQTTSubscribe will be called, included will be the received message information.