NAME
	  glXUseXFont -	create bitmap display lists from an X font


     C SPECIFICATION
	  void glXUseXFont( Font font,
			    int	first,
			    int	count,
			    int	listBase )


     PARAMETERS
	  font	    Specifies the font from which character glyphs are
		    to be taken.

	  first	    Specifies the index	of the first glyph to be
		    taken.

	  count	    Specifies the number of glyphs to be taken.

	  listBase  Specifies the index	of the first display list to
		    be generated.

     DESCRIPTION
	  glXUseXFont generates	count display lists, named listBase
	  through listBase+count-1, each containing a single glBitmap
	  command.  The	parameters of the glBitmap command of display
	  list listBase+i are derived from glyph first+i.  Bitmap
	  parameters xorig, yorig, width, and height are computed from
	  font metrics as descent-1, -lbearing,	rbearing-lbearing, and
	  ascent+descent, respectively.	 xmove is taken	from the
	  glyph's width	metric,	and ymove is set to zero.  Finally,
	  the glyph's image is converted to the	appropriate format for
	  glBitmap.

	  Using	glXUseXFont may	be more	efficient than accessing the X
	  font and generating the display lists	explicitly, both
	  because the display lists are	created	on the server without
	  requiring a round trip of the	glyph data, and	because	the
	  server may choose to delay the creation of each bitmap until
	  it is	accessed.

	  Empty	display	lists are created for all glyphs that are
	  requested and	are not	defined	in font.  glXUseXFont is
	  ignored if there is no current GLX context.

     ERRORS
	  BadFont is generated if font is not a	valid font.

	  GLXBadContextState is	generated if the current GLX context
	  is in	display-list construction mode.

	  GLXBadCurrentWindow is generated if the drawable associated
	  with the current context of the calling thread is a window,
	  and that window is no	longer valid.

     SEE ALSO
	  glBitmap, glXMakeCurrent