Newsgroups: comp.os.msdos.djgpp
From: manni DOT heumann AT gmx DOT de (Manni Heumann)
Subject: Re: My program's a machine killer!
References: <2d1m4.294$oU2 DOT 94919 AT tw12 DOT nn DOT bcandid DOT com>
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Date: Thu, 03 Feb 2000 08:14:59 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

In article <2d1m4.294$oU2 DOT 94919 AT tw12 DOT nn DOT bcandid DOT com>, "Brian" <none AT noemail DOT com> wrote:
>When I run the short little program below, my PC reboots. I don't have VESA
>so I set my graphics mode to VGA 320x200. I don't know if this is a problem.
>(SciTech wouldn't work with my machine) Can anyone spot the problem on the
>code below? Specifically the clear_to_color() function. I'm just trying to
>load a list box and turn the background color to black. I'm new to graphics
>programming, so if there's an easier way to do this, please tell.

[SNIP]

>int main(int argc)
>{
>    int ret;
>
>    allegro_init();
>    install_keyboard();
>    set_gfx_mode(GFX_VGA, 320, 200, 0, 0);
>    clear_to_color(screen, 0);
>    ret = do_dialog(the_dialog, -1);
>
>    readkey();
>    return 0;
>}

I'm not really sure if that is your problem (or your only problem), but you 
should also call install_mouse() and install_timer(). The dialogs need a mouse 
and the mice need timers.


--

Manni