PROPID_M_LAST_IN_XACT

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

This property indicates whether the message was the last message sent in a transaction.

• Property ID
  PROPID_M_LAST_IN_XACT

• Type Indicator
  VT_UI1

• MQPROPVARIANT Field
  bVal

• Property Values
  The following values can be used.

  Value	Description
  MQMSG_LAST_IN_XACT	The message was the last message sent in the transaction.
  MQMSG_NOT_LAST_IN_XACT	The message was not the last message sent in the transaction.

Remarks

The PROPID_M_LAST_IN_XACT property is available for MSMQ 2.0 and later.

It is used by receiving applications to verify that a message was the last message sent from a single transaction to a single queue.

To verify transaction boundaries, use PROPID_M_LAST_IN_XACT with the following properties:

• PROPID_M_FIRST_IN_XACT, which is a property for checking the first message sent in a transaction
• PROPID_M_XACTID, which is a property for retrieving the identifier of the transaction

If only one message is sent in a transaction, PROPID_M_FIRST_XACT and PROPID_M_LAST_XACT are set.

Examples

The following code example shows how PROPID_M_LAST_IN_XACT is specified in the MQMSGPROPS structure.

aMsgPropId[i] = PROPID_M_LAST_IN_XACT;  // Property ID
aMsgPropVar[i].vt = VT_UI1;             // Type indicator
i++;
...

msgprops.aPropVar = aMsgPropVar;
...

MQReceiveMessage(hQueue, ..., &msgprops, ...);

...
i++;
if(aMsgPropVar[i].bVal == MQMSG_LAST_IN_XACT)
{
   

See Also

Reference

PROPID_M_FIRST_IN_XACT
PROPID_M_XACTID