This indicates the content of the message. The following are valid for commands:
This is the length in bytes of the MQCFH structure. The value must be:
The following constant specifies the version number of the current version:
For a command message, this identifies the function to be performed. For a response message, it identifies the command to which this is the reply. See the description of each command for the value of this field.
This is the sequence number of the message within a set of related messages. For a command, this field must have the value one (because a command is always contained within a single message). For a response, the field has the value one for the first (or only) response to a command, and increases by one for each successive response to that command.
The last (or only) message in a set has the MQCFC_LAST flag set in the Control field. T
For a command, this value must always be set.
This field is meaningful only for a response; its value is not significant for a command. The following are possible:
This field is meaningful only for a response; its value is not significant for a command.
The possible reason codes that could be returned in response to a command are listed in Definitions of the Programmable Command Formats, and in the description of each command.
This is the number of parameter structures (MQCFBF, MQCFBS, MQCFIF, MQCFIL, MQCFIN, MQCFSL, MQCFSF, and MQCFST) that follow the MQCFH structure. The value of this field is zero or greater.
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