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From: dmurdoch@watstat.waterloo.edu (Duncan Murdoch)
Newsgroups: comp.lang.pascal
Subject: Re: Turbo Pascal Graphics. HELP!
Keywords: Screen Savings
Message-ID: <1991Feb10.031517.26075@maytag.waterloo.edu>
Date: 10 Feb 91 03:15:17 GMT
References: <5349@mentor.cc.purdue.edu> <1991Feb8.060006.1333@uwasa.fi>
Sender: daemon@maytag.waterloo.edu (Admin)
Organization: University of Waterloo
Lines: 12

In article <1991Feb8.060006.1333@uwasa.fi> ts@uwasa.fi (Timo Salmi) writes:
>
>The obvious solution is to save the screen in parts, each one < 64K. 
>It is simple as that.  And it works.  Usually four parts is enough,
>but this naturally depends. 

The trouble is that the Imagesize function returns a word, so you're never
quite sure that you haven't miscalculated, especially if you're trying to
write a device-independent program.  What if someone wants to run it on a 
machine with a 1024x1024 screen, with 24 bits per pixel?  

Duncan Murdoch