For anyone who's interested, here's the answer:
http://stackoverflow.com/questions/9...-on-menu-items...

I'm trying to click on a menu item inside a program called Media Subtitler and whatever I'm trying to do it's not working.

First, I tried to use the function GetMenu but it returned IntPtr.Zero. Then, I tried using the ALT key + using the first letter of my menu (F stands for file) but it did nothing. Then, I tried using a simple MOUSEDOWN and MOUSEUP messages but again, it did nothing (I also tried creating a loop that clicks on everything...