Xref: utzoo comp.windows.x:34076 gnu.misc.discuss:2678
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From: afzal@cui.unige.ch (Afzal Ballim)
Newsgroups: comp.windows.x,gnu.misc.discuss,in.xpert
Subject: Backing store patent, is it limited?
Message-ID: <5217@cui.unige.ch>
Date: 14 Mar 91 10:41:10 GMT
Sender: xpert-request@expo.lcs.mit.edu
Organization: University of Geneva, Switzerland
Lines: 18



>Abstract:
>A graphic terminal is disclosed using bitmaps to represent plural
                                       ^^^^^^^
.....
>the overlapping asynchronous windows or layers are manipulated
>by manipulating bitmaps.  With this software, the physical screen
                 ^^^^^^^

...and so on.

So, does this only cover windows of depth 1? (I.e., 1 bit per pixel.)

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