From:	gah AT jet DOT es (Grzegorz Adam Hankiewicz)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: [Allegro] Primitive bitmap access in datafiles
Date:	Thu, 18 Jun 1998 12:27:33 GMT
Organization:	Gogosoftware
Lines:	15
Message-ID:	<3589075a.3703286@news.jet.es>
References:	<6mb0kf$u1c$1 AT news DOT wave DOT co DOT nz>
NNTP-Posting-Host:	info163.jet.es
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

On Fri, 19 Jun 1998 00:22:36 +1200, "Question" <surfer AT -nospam- DOT net>
wrote:
>How do you access individual pixels of a bitmap that is embedded in a
>datafile.
>e.g.
>If the "images[1].dat" pointed to the data in a datafile,
>and using an 8bit (256 colour) depth,
>how would you get the colour of the pixel at say x=5, y=3?

I think you only need a cast. Say:

color = ((BITMAP *) images[1].dat) -> line[3][5];

- Grzegorz Adam Hankiewicz - gah AT jet DOT es - http://web.jet.es/gregorio/
- Gogosoftware - http://welcome.to/gogosoftware/

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