From: CrashLogix <dwatson AT NOSPAM DOT erols DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Allegro and Fonts
Date: Sun, 02 May 1999 02:41:05 -0400
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hi!

        I have been porting my code from VC++ to DJGPP/Allegro because
basically I got fed up with VC eating itself every other week. I got
Allegro with DJGPP, and, after a little bit of working, I was able to
get it all running nice and smooth.

        However, I was trying to use the TTF2PCX program with the
Grabber
utility, to make a font for a test program. Grabber seemed to pick up
the .PCX font fine, and then made the appropriate header file, etc.

Now, when I run the code, I get a GPF on the DATAFILE pointer test_dat,
which has kicked out with a more graceful error now that there's some
more defensive code in place:

#include <stdio.h>

#define alleg_mouse_unused
#define alleg_timer_unused
#include "allegro.h"
#include "test_font.h"
int main()
{
 DATAFILE *test_dat = NULL;


 allegro_init();
 set_color_depth(24);
 install_keyboard();
 set_color_depth(24);
 set_gfx_mode(GFX_AUTODETECT,800,600,0,0);
 test_dat = load_datafile("test.dat");
 if (test_dat != NULL)
 {
  textout_centre(screen,test_dat[TEST].dat,"abcd",400,300,96);
  readkey();
 }
 else
 {
   allegro_exit();
   printf("Error loading datafile!");
   return(1);
 }
 remove_keyboard();
 unload_datafile(test_dat);
 allegro_exit();


 return(0);
}

Could someone tell me what might possibly be wrong? I just don't wanna
make a game that uses that stupid 8x8 BIOS font (except for Pong)!