From: "Chris A. Triebel" <cat AT sun4 DOT iol DOT unh DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: How can I put BITMAP on Buttom?
Date: Thu, 22 May 1997 09:00:41 -0400
Organization: University of New Hampshire  -  Durham, NH
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On Wed, 21 May 1997, Gautam N. Lad wrote:

> Date: Wed, 21 MAY 97 21:34:04 GMT 
> From: Gautam N. Lad <gautam AT interlog DOT com>
> Newgroups: comp.os.msdos.djgpp
> Subject: Re: How can I put BITMAP on Buttom? 
> 
> Hi,
> >I mean How Can i do it in Allegro
> >> How can I put Bitmap on a button?
> 
> I konw Allegro doesn't support bitmapped buttons (CMIIW), so I guess your 
> best bet would be to get one of those Allegro GUI classes.  It may have them.  I 
> don't
> have any links or know exactly, but I do know a few exist.
> 
> Try asking someone.  If you don't know C++, you might have to make your own 
> routines for bitmapped buttons.
> 
> Hope this helps!
> Bye!
> 

Karl Rudd put out a set of classes for doing gui objects in allegro:

http://www.geocities.com/SiliconValley/Pines/5141/

But I think there is an easier way if you are already using allegro's own 
gui code.  First off copy the function that pertains to the button in 
allegro into a source file of your own making.  Second look for where the 
drawing gets done in that code.  ( unfortunatly I don't have the code 
handy so I can't look at this stuff up, but I believe there was a 
textout() function or something that performed it based on a void* in the 
definition structure.  Replace this with a blit() function, and use the 
void* to store the bitmap location.

Hope this helps.
cat