Overview for MQCTLO

Overview of the MQCTLO structure.

Availability: The MQCTLO structure is available on the following platforms:

  • AIX
  • IBM i
  • Linux
  • Windows
  • z/OS

and for IBM MQ MQI clients connected to these systems.

Purpose: The MQCTLO structure is used to specify options relating to a control callbacks function.

The structure is an input and output parameter on the MQCTL call.

Version: The current version of MQCTLO is MQCTLO_VERSION_1.

Character set and encoding: Data in MQCTLO must be in the character set given by the CodedCharSetId queue manager attribute and encoding of the local queue manager given by MQENC_NATIVE. However, if the application is running as an MQ MQI client, the structure must be in the character set and encoding of the client.

Parent topic: MQCTLO - Control callback options structure