Utils listener interface
Implement this and add as a listener to an instance of TSteamUtils to receive appropriate event callbacks.
CallResult for CheckFileSignature.
Method OnGamepadTextInputDismissed(submitted:Int, submittedTextLength:UInt)
Called when the big picture gamepad text input has been closed.
Called when running on a laptop and less than 10 minutes of battery is left, and then fires then every minute afterwards.
Called when Steam wants to shutdown.