If set to true, ignore default video adapter (videocard or videocard output) and using selected by VideoAdapterIndex. This allow to play with multimonitor displays and only by some specific one.
Index of video adapter to be used for rendering. It could be videocard for systems with multiple cards (integrated and pci-e f.e.) or just several output of same videocard (dvi-1, dvi-2, component). Default adapter is 0 and it’s main output device.
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