Wed, November 10, 2004, 09:29 PM under Links
Testing if this works in blogger

C# (btw, for the full MsgQueue API set look here)
        /// <summary>
        /// This function opens a handle to an existing message queue based on 
        /// a message queue handle.
        /// </summary>
        /// <param name="hSrcProc">[in] Handle to a source process that owns the 
        /// hMsgQ message queue handle. </param>
        /// <param name="hMsgQ">[in] Handle to a message queue returned by the 
        /// CreateMsgQueue function.</param>
        /// <param name="lpOptions">[in] Pointer to an MSGQUEUEOPTIONS structure 
        /// that sets the properties of the message queue.</param>
        /// <returns>Returns a handle to a message queue, or returns NULL if the 
        /// queue could not be opened.</returns>
        [DllImport("coredll.dll", SetLastError=true)]
        public static extern IntPtr OpenMsgQueue(IntPtr hSrcProc, IntPtr hMsgQ,    
            MsgQueueOptions lpOptions);

VB (btw, this is a another example of this)
    Private Function DoWork2() As Boolean
        ' If I don't have a requester then I can't do anything with the input 
        ' so ignore it (and don't obtain the lock!)
        Dim req As ForMyPending = Nothing
        req = Me.FindFreeRequester
        If req Is Nothing Then
            Return False
        End If
        ' Get the next object from the queue
        Dim queObj As ForMyQueue = Nothing
        SyncLock mQue.SyncRoot
            If mQue.Count > 0 Then
                queObj = DirectCast(mQue.Dequeue(), ForMyQueue)
            End If
        End SyncLock
        ' Deal with the next object from the queue without holding the lock!
        If Not queObj Is Nothing Then
            If queObj.ReqArgs.MaxNumResponses <> 0 Then'chance for client to cancel
                req.Deleg = queObj.Deleg
                If req.Requester.Request(queObj.ReqArgs, queObj.State) = False Then
                    If Not req.Deleg Is Nothing Then
                        req.Deleg.Invoke(Me, ReplyArgs.Empty)'failed
                        req.Deleg = Nothing'otherwise it wil never be reused again!
                    End If
                End If
            End If
        End If
        Return True
    End Function