Hconn (MQHCONN) - input

This handle represents the connection to the queue manager. The value of Hconn was returned by a previous MQCONN or MQCONNX call.

On z/OS for CICS applications, and on i5/OS for applications running in compatibility mode, you can omit the MQCONN call, and specify the following value for Hconn:

MQHC_DEF_HCONN
Default connection handle.