[AL] GFX_DIRECTX_WIN - problems in Win2k

[Lukas S. <lo...@gm...>]

Hi everyone!

I am having some problems using GFX_DIRECTX_WIN in Win2k;
The following Program crahses somewhere inside the blit - operation:

-----
#include <allegro.h>
#include <winalleg.h>

int main()
{
	BITMAP *target;

	allegro_init();
	install_keyboard();

	set_color_depth(32);
	set_gfx_mode(GFX_DIRECTX_WIN,640,480,0,0);

	target=create_bitmap_ex(32,640,480);
	rectfill(target,0,0,10,10,0xffff);
	blit(target,screen,0,0,0,0,640,480);

	while(!key[KEY_Q])Sleep(0);

	destroy_bitmap(target);
	return 0;
}
END_OF_MAIN()
-----
I am using a desktop-color-depth of 32 bit and Win2k SP1. Nor "target"
neither "screen" is NULL at the time of the blit operation. "test.exe" also
crashes with GFX_DIRECTX_WIN.

If I use any other GFX_... , it works perfectly, even with GFX_DIRECTX_OVL,
which of course makes GFX_DIRECTX_WIN useless on my computer (PIII 650,
Notebook with an ATI Rage LT Pro 2x AGP, 128MB). But as GFX_DIRECTX_OVL is
hardware - dependant this could turn out to be a problem on other computers.
I first thought that the experimental ATI - Drivers are be the problem, but
changing to the standard-drivers did not correct the problem.

This is not really vital to my program (a lanscape-rendering-engine), but I
do not see a reason for the "access violation".

Thanks for reading this far,
	Lukas