Date: Thu, 26 Jun 1997 13:04:28 -0500 (CDT)
From: Adam W Lee <adalee AT sendit DOT sendit DOT nodak DOT edu>
Message-Id: <199706261804.NAA03968@sendit.sendit.NoDak.edu>
To: djgpp AT delorie DOT com
Subject: Re: Allegro (bitmap)
Precedence: bulk

>Adam writes:
>>What's the fastest way to get an 'unsigned char Screen[resx*resy]' into an
>>Allegro BITMAP?
>
>The best way is to make them share a region of memory. Either allocate
>the buffer as an Allegro BITMAP (by calling create_bitmap()) and then
>use bmp->line[0] as the base address of your array, or construct a new
>bitmap object around your existing array. That would require a fair
>amount of messing with the internals of the BITMAP structure, though,
>which is obviously more likely to break with future versions of the
>code: look at the source for the create_sub_bitmap() routine (in
>graphics.c) to get an idea what you'd have to do...

So I'd just say something like 

char *dat;
dat = (char *) screen->line[0]; 

or something?