Unity - API скриптов: Display.SetParams

public function SetParams(width: int, height: int, x: int, y: int): void;

public void SetParams(int width, int height, int x, int y);

Параметры

width	Change Window Width (Windows Only).
height	Change Window Height (Windows Only).
x	Change Window Position X (Windows Only).
y	Change Window Position Y (Windows Only).

This Windows only function can be used to set Size and Position of the Screen when Multi-Display is enabled.

To change the size and position of Primary Display you must also activate Primary display by calling : Display.displays[0].Activate(0, 0, 0);