struct xycoord far _getlogcoord( short x, short y )

	- prototype in graph.h

	- translates physical coordinates to logical coordinates returning
	  the result in the format:

	struct xycoord
	    {
	    short xcoord;
	    short ycoord;
	    };

	- _getviewcoord() is obsolete; use _getlogcoord()
	- see	_getphyscoord()