MQCXP - Channel exit parameter

The MQCXP structure is passed to each type of exit called by a Message Channel Agent (MCA), client-connection channel, or server-connection channel.

See MQ_CHANNEL_EXIT.

The fields described as "input to the exit" in the descriptions that follow are ignored by the channel when the exit returns control to the channel. Any input fields that the exit changes in the channel exit parameter block will not be preserved for its next invocation. Changes made to input/output fields (for example, the ExitUserArea field), are preserved for invocations of that instance of the exit only. Such changes cannot be used to pass data between different exits defined on the same channel, or between the same exit defined on different channels.