Get X,Y coords in full screen window

[MFatica 0]

Ok im trying to set up something for a game where it launches the game and clicks on some buttons.

How can i get the X,Y coords for the button.

I tried MouseGetPos but I haven't had any success. Maybe I'm using it wrong?

[CyberSlug 3]

What game? Some games intentionally block MouseGetPos, PixelGetColor, etc.

[MFatica 0]

The game is Diablo II.