ActiveMQ.Dispatcher.DequeueNoWait C# (CSharp) Method

        public IMessage DequeueNoWait()
        {
            IMessage rc = null;
            lock (semaphore)
            {
                if (!m_bClosed && queue.Count > 0)
                {
                    rc = (IMessage) queue.Dequeue();
                }
            }
            return rc;
        }

 public IMessage ReceiveNoWait()
 {
     CheckClosed();
     return(AutoAcknowledge(dispatcher.DequeueNoWait()));
 }