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Hconn (MQHCONN) - input/output

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, we can omit the MQCONN call, and specify the following value for Hconn:

MQHC_DEF_HCONN

Default connection handle.

On successful completion of the call, the queue manager sets Hconn to a value that is not a valid handle for the environment. This value is:

MQHC_UNUSABLE_HCONN

Unusable connection handle.

On z/OS, Hconn is set to a value that is undefined.

 

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