Overview

Purpose: The MQGMO structure allows the application to specify options that control how messages are removed from queues. The structure is an input/output parameter on the MQGET call.

Version: The current version of MQGMO is GMVER3. Fields that exist only in the more-recent versions of the structure are identified as such in the descriptions that follow.

The COPY file provided contains the most recent version of MQGMO that is supported by the environment, but with the initial value of the GMVER field set to GMVER1. To use fields that are not present in the version-1 structure, the application must set the GMVER field to the version number of the version required.

Character set and encoding: Data in MQGMO must be in the character set and encoding of the local queue manager; these are given by the CodedCharSetId queue manager attribute and ENNAT, respectively. However, if the application is running as an MQ client, the structure must be in the character set and encoding of the client.