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From: F0O@psuvm.psu.edu
Newsgroups: comp.lang.pascal
Subject: Re: Graphics problem
Message-ID: <91043.084631F0O@psuvm.psu.edu>
Date: 12 Feb 91 13:46:30 GMT
References: <59173@eerie.acsu.Buffalo.EDU>
Organization: Penn State University
Lines: 27

In article <59173@eerie.acsu.Buffalo.EDU>, ormohrbh@ubvmsd.cc.buffalo.edu
(Richard Ohrbach) says:

>I am having the following problem:
>     I developed a program on computer #1 (8088 machine) which contained
>the following sequence of code:  SetViewPort (#1);
>                                 write some stuff in this viewport
>                                 SetViewPort (#2);
>                                 write some stuff in this viewport

>The program worked fine when initially developed, and it still does on
>computer #2 (80386) as well as another 8086 machine, but the program does
>not work on computer #1 or two other 8088 machines.  The problem is this:
>when ViewPort #2 is initialized, the program returns back GraphResult of
>-11 ("GraphicsError"), and the stuff that is supposed to be done in
>ViewPort #2 is done instead in ViewPort #1.  So, ViewPort #2 is not
>recognized.

     If you have not modified the program since it did work on computer #1,
and if nothing has changed in computer #1's hardware configuration, then
I'd say it's a problem with the hardware in the machine.
     You could also copy the TURBO.EXE file from your master disks to
the hard disk.  Maybe it was corrupted somehow.

                                               Good luck,

                                                           [Tim]