MSC: struct videoconfig far *_getvideoconfig(
				    struct videoconfig far *config )

	- prototype in graph.h

	- returns video configuration information via struct videoconfig:

	struct videoconfig
	    {
	    short numxpixels;	  	- pixels on X axis
	    short numypixels;	  	- pixels on Y axis
	    short numtextcols;   	- text columns available
	    short numtextrows;   	- text rows available
	    short numcolors;	  	- actual colors available
	    short bitsperpixel;  	- bits per pixel
	    short numvideopages; 	- available video page count
	    short mode;		  	- current video mode
	    short adapter;	  	- active display adapter
	    short monitor;	  	- active display monitor
	    short memory;	  	- adapter video memory in K
	    };