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   NAME
	CMD_FLUSH - Aborts all inprogress and queued requests


   SYNOPSIS
	Standard device command.


   FUNCTION
	Aborts all inprogress and queued speech requests.


   INPUTS
	Valid IORequest block with the io_Command field set to CMD_FLUSH.
	A valid IORequest block is one with its io_Message structure, and
	io_Device and io_Unit fields properly initialized.  The easiest
	way to insure proper initialization is to make a copy of the
	IORequest block after a successful OpenDevice call.


   RESULTS
	io_Error in IORequest block set to 0


   SEE ALSO
  	Exec input/output documentation.