MSMQQueueInfo.Authenticate (Windows Embedded CE 6.0)

1/6/2010

This property specifies whether the queue only accepts authenticated messages.

Syntax

HRESULT get_Authenticate( 
  long* plAuthenticate 
);
HRESULT put_Authenticate( 
  long lAuthenticate
);

Parameters

• plAuthenticate or lAuthenticate
  Specifies whether the queue only accepts authenticated messages. The following table shows the possible values.

  Value	Description
  MQ_AUTHENTICATE_NONE	The default. The queue accepts authenticated and non-authenticated messages.
  MQ_AUTHENTICATE	The queue only accepts authenticated messages.

Return Value

The following table describes the common return values.

Remarks

This property sets the authentication level of the queue.

When a nonauthenticated message is sent to a queue that only accepts authenticated messages, the message is rejected.

If the sending application has also requested negative acknowledgment messages, a negative acknowledgment message with the message class MQMSG_CLASS_BAD_SIGNATURE is returned to the sending application to indicate the message was rejected.

Setting and Retrieving the Queue Authentication Level

To specify the authentication level when creating the queue, set the MSMQQueueInfo.Authenticate property and call the MSMQQueueInfo.Create method.

To reset the authentication level of an open queue, set MSMQQueueInfo.Authenticate to a new level and call the MSMQQueueInfo.Update method. This method updates the queue information stored by Message Queuing.

For public queues, this information is stored in the directory service.

For private queues, this information is stored on the computer where the messages of the queue are stored.

To retrieve the stored authentication level of a queue, call the MSMQQueueInfo.Refresh method and inspect the MSMQQueueInfo.Authenticate property.

Requesting Message Authentication

The sending application requests authentication by setting the MSMQMessage.AuthLevel message property when the message is sent.

Verifying Message Authentication

To verify that the sending application requested authentication, peek at the MSMQMessage.IsAuthenticated2 property of the message.

Equivalent Function property

When using function calls, the authentication level of the queue can be set and retrieved using the PROPID_Q_AUTHENTICATE property.

Requirements

See Also

Reference

MSMQQueueInfo