Purpose: Implements a thread safe queue of pointers to CObject elements. Support blocking and non-blocking access to queue. Methods: BOOL Enqueue (CObject* pNewElement) - Insert new object into the queue. BOOL Enqueue (CObject* pNewElement, DWORD dwKey) - Insert new object to sorted Q BOOL Dequeue(CObject*&) - Remove an object out of the queue int GetQueueSize() - Return the size of the queue (number of elements) CSemaphore& ExposeSemaphore() - Expose the queue's semaphore for blocking mode. void Empty() - Empties the queue (also deletes objects pointed to by elements in the queue).