Wait (PULONG) - input

Wait flag.

A pointer to a ULONG containing the action to take when MouReadEventQue is issued and the mouse event queue is empty. If the mouse event queue is not empty, this parameter is not examined by the mouse support.

May be one of the following values:

• MOU_NOWAIT
  Do not wait for data on an empty queue (return a NULL record).

• MOU_WAIT
  Wait for data on an empty queue.