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MsgDesc (MQMD) - input/output

This structure describes the attributes of the message being sent, and receives feedback information after the put request is complete. See MQMD - Message descriptor for details.

If the application provides a version-1 MQMD, the message data can be prefixed with an MQMDE structure to specify values for the fields that exist in the version-2 MQMD but not the version-1. Set the Format field in the MQMD to MQFMT_MD_EXTENSION to indicate that an MQMDE is present. See MQMDE - Message descriptor extension for more details.



 

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