Cheat Engine

Ksbunker

I was looking through user32.dll and managed to come across some API not officially supported by MSDN (reasons unknown). Its interesting to note that the MessageBox() function uses MessageBoxTimeout and passes FFFFFFFFh as the timeout value (long time, approx ~49 days).

The last paramater is the timeout value and it determines how long the messagebox will be displayed untill it closes itself.

I've developed a simple wrapper function for MessageBoxTimeout().

It's in ASM, but can be ported without hassle to any language.

appalsap · Posted: Sat Jun 30, 2007 9:00 pm Post subject:

If they don't document it, it means they don't want to support it. This means using it is extremely stupid; updates can and will break your code. As an side note, WINE doesn't support MessageBoxTimeout yet so your app is already broken there.

This is old and well known anyway...

Ksbunker · Posted: Sat Jun 30, 2007 9:14 pm Post subject:

I can give no reassurance that microsoft will not remove the function. However as mentioned, the fact that the all important MessageBox() function calls it, is in my eyes, evidence enough to suggest that in the near future, the liklihood of it being removed is minimal.

appalsap · Posted: Sat Jun 30, 2007 9:50 pm Post subject:

I know that, I say this about undocumented functions in general.