Version: 2018.1

PlayerSettings.visibleInBackground

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public static bool visibleInBackground ;

Description

On Windows, show the application in the background if Fullscreen Windowed mode is used.

This setting is used with the Fullscreen Windowed mode. If this setting is false and you Alt-Tab out of the application, it will minimize. If this setting is true, the application will not minimize and remain visible behind other windows.