From:	Shawn Hargreaves <Shawn AT talula DOT demon DOT co DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Allegro truecolour
Date:	Wed, 4 Feb 1998 23:13:17 +0000
Organization:	None
Distribution:	world
Message-ID:	<IKYhmBANYP20Ewpj@talula.demon.co.uk>
References:	<01bd31b2$835b9980$6b83a6c3 AT p166-mmx>
NNTP-Posting-Host:	talula.demon.co.uk
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Edd writes:
>I'm having problems using truecolour through Djgpp and Allegro version 
>3.0. The screen doesn't look right 

In what way? I know it can be hard to describe things like this, but you
will have to try to give me some idea what the problem might be...

>and I can find no way of making Allegro draw transparent sprites. 

Use a bright pink color (maximum red and blue, zero green) for the
masked pixels. The documentation describes this in several places: see
the description of draw_sprite() or the truecolor pixel formats section.

>It also crashes a lot, sometimes it works sometimes it doesn't.

Is this just your program, or do the Allegro tests and examples also
sometimes crash?


--
Shawn Hargreaves - shawn AT talula DOT demon DOT co DOT uk - http://www.talula.demon.co.uk/
"Pigs use it for a tambourine" - Frank Zappa

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