Xref:	news2.mv.net comp.os.msdos.djgpp:5235
From:	Ben Ashley <Ben AT flag DOT demon DOT co DOT uk>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Allegro Blues
Date:	Fri, 21 Jun 96 10:30:42 GMT
Organization:	Flag Bearers
Lines:	68
Message-ID:	<835353042snz@flag.demon.co.uk>
Reply-To:	Ben AT flag DOT demon DOT co DOT uk
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Yup... me again... :)

I am having some problems with allegro.  I am running under Windows 95, using
RHIDE as the Editor.  I seem to have an erratic bug.  I am making some GUI
class libraries, and things seem to go wrong in my CApp constructor.  This
class simply initializes the entire system, ready for use.  It goes like this

/*
	CApp Class Implementation
	=========================
*/

#include <allegro.h>
#include <stdlib.h>
#include <time.h>
#include <conio.h>

#include "app.h"
#include "gui.h"
#include "control.h"
#include "contlist.h"

CApp::CApp(int GfxCard, int Width, int Height)
{

   // Initialize Allegro:
	
   allegro_init();
   install_keyboard();
   install_mouse();
   install_timer();
	
   // Initialize Screen:
	
   set_gfx_mode(GfxCard, Width, Height, 0, 0);
   show_mouse(screen);
	
   // Defaults:
	
   ActiveWindow	= NULL;
   QuitFlag 	= FALSE;		// Set to non-zero to quit the app
   DblClickSpeed= 400;	                // Over-ride as necessary
   Zone.Left 	= 0;           		// Define zone for window
   Zone.Top	= 0;                    // movement...
   Zone.Width	= SCREEN_W;            	// ...
   Zone.Height	= SCREEN_H;           	// ...
		
   Event_Open();
}; 

Sometimes everything opens nice and correctly.  Most mostly, ALLEGRO quits
with a GPF.  From some testing, it seems to occur around the set_gfx_mode()
function.  I am passing 'GFX_AUTODETECT, 640, 480' to the constructor which
then, as you can see gets put in the set_gfx_mode() function.

Has anyone got any ideas?

-- 
Cheers,

Ben                                     -=Look for "Moo-Juice" on the IRC=-

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