From:	mert0407 AT sable DOT ox DOT ac DOT uk (George Foot)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Allegro Error (in my game): Why?
Date:	7 Jun 1997 00:25:04 GMT
Organization:	Oxford University, England
Message-ID:	<5na9p0$jh7@news.ox.ac.uk>
References:	<5na0cl$h9m AT news DOT interlog DOT com>
NNTP-Posting-Host:	sable.ox.ac.uk
Lines:	29
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Gautam N. Lad (gautam AT interlog DOT com) wrote:

: And it points to this line:  
: 	BITMAP *DBuffer = create_bitmap(640, 480);

create_bitmap is a function, and you can't call functions except inside
code blocks. What you need to do is seperate the definition of DBuffer
from its initialisation. Put BITMAP *DBuffer; at top level, and somewhere
during your initialisation put DBuffer = create_bitmap(640,480); and it
should be okay. 

: BTW, It seems that the Allegro Documentation is full of 'What and not much 
: 'Why' and 'How'?  Also, I'm not flaming anyone (esp. Shawn H.), 'cause I know 
: how hard it is to write a Documentation.  And, I may use the game I'm making, 
: as a tutorial, that I may plan on writing (MAYBE).  Just wish the docs was 
: better.  Oh well, I can learn just fine from the EXample sources! ;)

You might like to look at Allegro Vivace
(http://users.ox.ac.uk/~mert0407/vivace.txt) - it is intended to be a
tutorial and introduction to game programming, aimed at relative
beginners. It isn't nearly finished yet, but it will take you as far as
displaying graphics at the moment.

I did actually write sections 5, 6 and 7, but have lost 6 and 7 now for
some reason I couldn't fathom.

-- 
George Foot <mert0407 AT sable DOT ox DOT ac DOT uk>
Merton College, Oxford

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