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From: daven@svc.portal.com
Newsgroups: comp.sys.mac.programmer
Subject: Re: distort bitmaps ...
Message-ID: <1990Dec14.194201.2001@svc.portal.com>
Date: 14 Dec 90 19:42:01 GMT
References: <12279@hacgate.UUCP>
Organization: Software Ventures
Lines: 22

In article <12279@hacgate.UUCP> waung@rscene.hac.com (Franklin Waung) writes:
>
>	I have a bit map of say 80 by 100 pixels 1 bit deep (black or white),
>and I want to expand the image on the bitmap to say 120 by 150 pixels.
>
>	Does anyone know some short algorithms to do this?  
>

Yes, it's called "CopyBits". It takes as part of it's parameters the rectangle
that surrounds the bits to be copied, and a rectangle that surrounds the
destination. If the destination rectangle is larger than the source rectangle
it will "scale" your image to fit the destination - probably what you want.

It will also shrink an image if the destination rectangle is smaller than the
source's.


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