Subject:   -52- How can I make a screen dump?
Date: 13 Nov 1994 00:00:01 EST

  Use the utilities 'imgsnap' (IRIX 4.0.x only), 'scrsave', 'snapshot'
  or 'xwd'. All have manpages. 'imgsnap' is in the imgtools.sw.tools
  subsystem, 'scrsave' and 'snapshot' are in the eoe2.sw.gltools
  subsystem, 'xwd' is in x_eoe.sw.Xapps and their manpages are in the
  respective *.man.* subsystems.

  From within a GL program, you should call readdisplay().  For an
  example look at ~4Dgifts/iristools/imgtools/scrsave.c.