PROPID_M_APPSPECIFIC

The PROPID_M_APPSPECIFIC property specifies application-generated information such as single integer values or application defined message classes.

Type Indicator

VT_UI4 (or VT_NULL)

PROPVARIANT Field

ulVal

Property Values

Unsigned integer. The default is 0.

Remarks

When passing PROPID_M_APPSPECIFIC to MQReceiveMessage, the corresponding VT field in the aPropVar array can be set to VT_NULL.

In addition to PROPID_M_APPSPECIFIC, you can use the PROPID_M_CORRELATIONID message property for sorting.

Example

This example shows how PROPID_M_APPSPECIFIC is specified in the MQMSGPROPS structure:

    MsgProps.aPropID[i] = PROPID_M_APPSPECIFIC;       //PropId
    MsgProps.aPropVar[i].vt = VT_UI4;                 //Type
    MsgProps.aPropVar[i].ulVal = 444;                 //Value
    

For an example of using PROID_M_APPSPECIFIC, see Reading Messages Using a Cursor.

See Also

MQReceiveMessage, MQSendMessage, PROPID_M_CORRELATIONID

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