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From: blbates@AERO4.LARC.NASA.GOV ("Brent L. Bates AAD/TAB MS361 x42854")
Newsgroups: comp.sys.sgi
Subject: gl_readscreen, scrsave, icut, snapshot bug
Message-ID: <9011131818.AA18591@aero4.larc.nasa.gov>
Date: 13 Nov 90 19:18:41 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 18


     We have a 4D/210VGX and a 4D/320VGX both OS 3.3.1.  I have found
a bug in gl_readscreen, which causes scrsave, icut, and snapshot not
to work properly.  If you try to save a full screen width, the full
1280 pixels wide, the image is garbaged with vertical lines. If I make
the image one pixel narrower everything works fine.
     Perhaps, before SGI makes gl_readscreen a "documented" and "supported"
routine, they could fix this bug in the next release, 3.3.2?

	Brent L. Bates
	NASA-Langley Research Center
	M.S. 361
	Hampton, Virginia  23665-5225
	(804) 864-2854
	E-mail: blbates@aero4.larc.nasa.gov or blbates@aero8.larc.nasa.gov
--

					Brent