Version (MQLONG)
The value in this field is the structure version number.
The value must be:
- MQCBC_VERSION_1
- Version-1 callback context structure.
The following constant specifies the version number of the current version:
- MQCBC_CURRENT_VERSION
- Current version of the callback context structure.
This is always an input field. The initial value of this field is MQCBC_VERSION_1.
The callback function is always passed the latest version of the structure.
Parent topic: Fields for MQCBC