Version (MQLONG) for MQDLH
Version is the structure version number.
The value must be:
- MQDLH_VERSION_1
- Version number for dead-letter header structure.
The following constant specifies the version number of the current version:
- MQDLH_CURRENT_VERSION
- Current version of dead-letter header structure.
The initial value of this field is MQDLH_VERSION_1.