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How to use enableNotification method in MSMQ

• • Reply

  4 months ago

  by amer_jamaeen

  amer_jamaeen

  , Jordan

  Joined 7 months ago

   

  I am using MSMQ-3 on my local machine. I am using enableNotification method to notify me when a message comes in the queue. But i am getting error message while using enableNotification. The message comes is "Access is denied" (error no. -1072824283). I am getting the message in the following line

   Dim evnt As MSMQ.MSMQEvent
              evnt = New MSMQ.MSMQEvent
              vMyQSend.EnableNotification(evnt)

   

  anybody please help me.

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• • Reply

  3 months ago

  by amer_jamaeen

  amer_jamaeen

  , Jordan

  Joined 7 months ago

  Read this document carefully
  http://msdn.microsoft.com/en-us/library/ms711398(VS.85).aspx
  
  Be careful that,
  

  1. Declare the MSMQEvent object and the MSMQQueue object globally 
  2. If Opening the watching queue for send access, then don't use new keyword in MSMQEvent object but if Opening the watching queue for receive access then must use the new keyword
  3. Be careful that if you are Opening the watching queue for send accessand using the new keyword then the Error "Access is denied" comes.

  The sample exampe is
  
   Private WithEvents oEvent As MSMQ.MSMQEvent
   Private myQWatch As MSMQ.MSMQQueue
  
  Public Sub.............
        
           Dim myQWatchInfo As New MSMQ.MSMQQueueInfo
          myQWatchInfo.PathName = ".\Private$\WatchQueue"
          myQWatch = myQWatchInfo.Open(MSMQ.MQACCESS.MQ_RECEIVE_ACCESS,_ MSMQ.MQSHARE.MQ_DENY_NONE)
  
          oEvent = New MSMQ.MSMQEvent
          myQWatch.EnableNotification(oEvent)
          MsgBox("EnableNotification is now Running")
  
  End Sub

   Shahid Noor
  

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