Message-ID:	<8D53104ECD0CD211AF4000A0C9D60AE35274B7@probe-2.acclaim-euro.net>
From:	Shawn Hargreaves <ShawnH AT Probe DOT co DOT uk>
To:	djgpp AT delorie DOT com
Subject:	Re: Help: Converting 24bit bitmap to seperate R,G,B files using A
	llegro?
Date:	Fri, 12 Feb 1999 14:36:20 -0000
MIME-Version:	1.0
X-Mailer:	Internet Mail Service (5.0.1460.8)
Reply-To:	djgpp AT delorie DOT com

Dave Nugent writes:
> I want to be able to take a 24 bit color bitmap, and create
> 3 seperate files from it, 1 for Red, Green and Blue.

Read in your source in 24 bit format (set_color_depth(24), 
set_color_conversion(COLORCONV_TOTAL), then load it in as usual).
Use getpixel() to read pixels from the source graphic, getr24(), 
getg24() and getb24() to split that value up into individual
color components, create_bitmap_ex() to construct three eight bit
output images, putpixel() to write your r/g/b values to these
images, and save_bitmap() to save out the results.


	Shawn Hargreaves.

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