can you make readdisplay() read back buffer

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#86

From: Ron Janzen
Date: Thu, 07 Jan 1993 17:02

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Does anybody know of a way to read the back buffer in the same way as
readdisplay() can read what is displayed on the screen? It must be
possible since snoop (a demo program supplied by SGI) can do it.

I've tried using fullscrn()/endfullscrn() and setting readsource
appropriately, but I always end up reading the front buffer contents.
--
Ron Janzen
Alias Research Inc., Toronto
rjanzen@alias.com

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Newsgroups: comp.sys.sgi.graphics
Path: arc1-ca.pugleaf.net!sparky!uunet!uunet.ca!geac!alias!rjanzen
From: rjanzen@alias.com (Ron Janzen)
Subject: can you make readdisplay() read back buffer
Message-ID: <1993Jan7.170216.1065@alias.com>
Sender: news@alias.com (News Owner)
Organization: Alias Research, Inc., Toronto ON Canada
Date: Thu, 7 Jan 1993 17:02:16 GMT
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