lxflsh

	lxflsh()

	This routine  will  flush  the LX color graphics command  buffer  by
	transmitting its contents, if any, to the color graphics controller.
	This routine is called implicitly whenever the INTYPE routine is called.
	The user may also call this routine explicitly in order to force
	immediate transmission of any buffered commands.  Such a call might be
	desirable after issuing a series of color graphics commands and before
	embarking on a time-consuming calculation.