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From: CDCKAB%EMUVM1.BITNET@cunyvm.cuny.edu ( Karl Brendel)
Newsgroups: comp.lang.pascal
Subject: (R)Re: Graphic-screen to disk
Message-ID: <25074@adm.brl.mil>
Date: 20 Nov 90 22:40:00 GMT
Sender: news@adm.brl.mil
Lines: 36


In article <11518@j.cc.purdue.edu>, Albert Zhou
  <zhou@brazil.psych.purdue.edu> writes:

[deleted]
>Actually neither is wrong. Please run the following program. I am
>suprised to see that both addresses store the same image on my CGA.
>Please let me know if it works the same on your machine.
>
>
>uses graph;
>type
>    buftype1 = array[1..8000] of byte;
>    buftype2 = array[1..16000] of byte;
[deleted]
>     MyBuffer1 := x1;
>     MyBuffer2 :=x2;
[deleted]
>     AnotherBuffer := y;
[deleted]

I'm inclined to believe that either you don't have a "true" CGA, or your
monitor doesn't display the image clearly, or you are being deceived by
the simplicity of your displayed pattern. When I run your program
(which, admittedly, I am doing on a VGA, using the CGA driver), it is
apparent that not all of the image is restored at the assignments to
MyBuffer1 & MyBuffer2, but it is at the assignment to AnotherBuffer.

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| Karl Brendel                                Centers for Disease Control |
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