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Mail Archives: djgpp/1997/10/14/15:17:30

From: mert0407 AT sable DOT ox DOT ac DOT uk (George Foot)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Allegro: clear_to_color()
Date: 12 Oct 1997 13:57:33 GMT
Organization: Oxford University, England
Lines: 16
Message-ID: <61ql0d$auh$2@news.ox.ac.uk>
References: <61oa8b$9vg$1 AT news DOT interlog DOT com> <61oclb$li3$2 AT news DOT ox DOT ac DOT uk> <61og7g$hm6$1 AT news DOT interlog DOT com>
NNTP-Posting-Host: sable.ox.ac.uk
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

Gautam N. Lad (gautam AT interlog DOT com) wrote:
: >Did you set_gfx_mode first? Did the call to set_gfx_mode succeed? I expect
: >one of those is your problem. :)

: Yes.  I was in graphics mode (set using the GFX_AUTODETECT).  RIght after 
: graphics system was init., I called the function, and I get a GPF.

But did the call succeed? set_gfx_mode returns 0 on success, negative on
error. After calling it you should check its return value, and if it was
negative report the error stored in allegro_error.

hth

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

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