r.FullScreenMode
VarUnreal Engine Var console variable.
rFullScreenMode
Description
Defines how we do full screen when requested (e.g. command line option -fullscreen or in ini [SystemSettings] fullscreen=true 0: normal full screen (renders faster, more control over vsync, less GPU memory, 10bit color if possible 1: windowed full screen (quick switch between applications and window mode, slight performance loss any other number behaves like 0
Usage
r.FullScreenMode [value]Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.

