I accidentally pressed some key combination that caused Batman: Arkham City to enter fullscreen mode from borderless windowed mode. Because I don't know what key combination caused it, I restarted the game to fix it, which is tedious. What caused Arkham City to do this? What key combination?
31 Answer
Alt+Enter (at least on the Windows OS). This answer is not trivial, this answer is not trivial, THIS ANSWER IS NOT TRIVIAL!
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