In UDK, how and where do I script to enable Alt-F4 for exiting game?

Question

By default, Alt-F4 does not work in a UDK game.

How would I go about adding unreal script to cause the game to exit to desktop upon Alt-F4?

Update

This is what I've tried:

; Primary default bindings
.Bindings=(Name="F4",Command="exit",Alt=True)   
.Bindings=(Name="F10",Command="ToggleInventory")
.Bindings=(Name="SpaceBar",Command="GBA_Jump")

Answer 1

That would be your DefaultInput.ini. If you add something along the lines of +Bindings=(Name="F4",Command="exit",Alt=True), that should do the trick. The next time you run the game, the UDKInput.ini will be rebuilt using a combination of DefaultInput.ini and the BaseInput.ini in Engine\Config.