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From: mcastle@mcs213f.cs.umr.edu (Mike Castle {Nexus})
Newsgroups: comp.lang.pascal
Subject: Re: Storing screen image for quick display
Message-ID: <2015@umriscc.isc.umr.edu>
Date: 23 Jan 91 03:43:21 GMT
References: <8416@hub.ucsb.edu>
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Organization: University of Missouri - Rolla
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In article <8416@hub.ucsb.edu> 6500boo@ucsbuxa.ucsb.edu (William Bushing) writes:
>I tried using arrays to store the pixel values in a [512,512]
>array (too large for TP 5.5) and a series of four [512,128]
>arrays. No luck. What data structure should I use to store the
>image and then quickly recall it? If it involves pointers, I
>don't feel comfortable with them. Can I use my computer's RAM
>to store the pixel values in a contiguous set of memory addresses
>and then retrieve the values?

Try GetImage/PutImage along with ImageSize.  Good examples on how to use these
in the manual (and since using 5.5, in online help as well). 

The only thing you might have problems with it changing the palette.  I'm not
sure in what format it's saved in with GetImage, but my guess would be the entry
to the color map, rather than the RGB values themselves.  So, you might want to
save and restore the current palette as well as the bit image.
-- 
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