 receive all subsequent mouse events in the form of <CODE>
MSG_META_PRE_PASSIVE_...</CODE>
 <EM>
before</EM>
 the event's destination object receives them; this message will carry the same input information as passed with the input event. The object should handle <CODE>
MSG_META_PRE_PASSIVE_...</CODE>
 and, if the event is not to be sent normally to its destination, should return the flag MRF_PREVENT_PASS_THROUGH from that handler. The pre-passive grab will be released when the object sends itself a <CODE>
