set_vt_box (screen) TScreen *screen;
set_vt_box (TScreen *screen)
set_vt_box (screen)	TScreen *screen;{	XPoint	*vp;	vp = &VTbox[1];	(vp++)->x = FontWidth(screen) - 1;	(vp++)->y = FontHeight(screen) - 1;	(vp++)->x = -(FontWidth(screen) - 1);	vp->y = -(FontHeight(screen) - 1);	screen->box = VTbox;}