xscreensaver-gl-helper - figure out which X visual to use for GL programs

       Copyright © 2000 by Jamie Zawinski.  Permission to use, copy, modify, distribute, and sell this  software
       and  its  documentation  for any purpose is hereby granted without fee, provided that the above copyright
       notice appear in all copies and that both that copyright notice and  this  permission  notice  appear  in
       supporting  documentation.   No  representations  are made about the suitability of this software for any
       purpose.  It is provided "as is" without express or implied warranty.

X Version 11                                   5.45 (08-Dec-2020)                      xscreensaver-gl-helper(1)

       This  program  prints  the  ID of the visual that should be used for proper operation of OpenGL programs.
       This program only exists so that the xscreensaver(1) daemon does not need  to  link  against  the  OpenGL
       library.

DISPLAY to get the default host, display, and screen number.

       xscreensaver-gl-helper - figure out which X visual to use for GL programs

X(1),   xdpyinfo(1),   xglinfo(1),   glxinfo(1),  glxdpyinfo(1),  xscreensaver(1),  xscreensaver-demo(1),
       xscreensaver-command(1)

xscreensaver-gl-helper [-display host:display.screen]