MQCBD - Callback descriptor

The following table summarizes the fields in the structure. Structure specifying the callback function.

Table 1. Fields in MQCBD
Field	Description	Topic
`StrucID`	Structure identifier	StrucID
`Version`	Structure version number	Version
`CallbackType`	Type of callback function	CallbackType
`Options`	Options controlling message consumption	Options
`Callback Area`	Field for callback function to use	CallbackArea
`CallbackFunction`	Whether the function is invoked as an API call	CallbackFunction
`CallbackName`	Whether the function is invoked as a dynamically-linked program	CallbackName
`MaxMsgLength`	Length of longest message that can be read	MaxMsgLength