Re: [GD-Windows] Terminating a program

[brian s. <bri...@gm...>]

On 7/29/05, epa...@ko... <epa...@ko...> wrote:
>=20
> I have divided my system to a launcher program and the actual (full
> screen) graphics application.
>=20
> In some cases the laucher needs to terminate the graphics application.
>=20
> I have been trying
> SendMessageTimeout(hwnd,WM_CLOSE,0,0,
> SMTO_NORMAL,
> 10000,
> &res);
>=20
> and
>=20
> PostMessage(hwnd, WM_CLOSE, 0, 0) ;
>=20
>=20
> but neither of these is fully reliable. In some cases
> I get the Windows "End Program" dialogue on screen asking
> the user if the program should really be terminated.


Windows pops up that dialog box because your graphics application isn't=20
processing messages, so Windows considers the app to be hung. You should=20
figure out why that's happening, and fix the bugs in your graphics app so=
=20
that it can actually process messages and shutdown cleanly.

That is not ok for me.
>=20
> Actually I don't really care if the program gets its chance of
> getting cleanly shut down, but it is very much necessary that the
> OpenGL (Nvidia) and sound drivers (Creative) are not left in a
> corrupt state. And Windows (XP) itself must be able to get
> all resources back etc.
>=20
> Any ideas how to do this?


Once you learn that there's a function called TerminateProcess() you may=20
think it's just what you need, but that is a very bad way to shut down an=
=20
application, and it is likely to leave drivers in a corrupt state.

--brian