The handle to the connection that you want to stop. This handle is passed back to you by the MQCreateConnection() function.
You can restart message delivery by calling the MQStartConnection() function. When the connection has stopped, delivery to all the connection’s message consumers is inhibited: synchronous receives block, and messages are not delivered to message listeners. This call blocks until receives and/or message listeners in progress have completed.
You should not call MQStopConnection in a message listener callback function.