The mqseries_begin (MQBEGIN) call begins a unit of work that is coordinated by the queue manager, and that may involve external resource managers.
Using mqseries_begin starts the unit of work. Either mqseries_back or mqseries_cmit ends the unit of work.
This handle represents the connection to the queue manager.
Reason code qualifying the compCode.
No value is returned.
mqseries_begin will not function when using MQSeries Client to connect to a Queueu Manager.