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# Screen Object

The Screen object has information about the subject screen, such as screen size, refresh rate, etc.

`Screen.SubjectScreenRect % [left top right bottom] in Windows coordinates Screen.Xsize % in pixels Screen.Ysize % in pixels Screen.SubjectScreenAspectRatio % Xsize / Ysize Screen.SubjectScreenFullSize % [Xsize Ysize] Screen.SubjectScreenHalfSize % 0.5 * [Xsize Ysize] Screen.RefreshRate % in hertz Screen.FrameLength % in milliseconds Screen.BackgroundColor % [R G B] Screen.PixelsPerDegree % a positive scalar`

It is accessible in the timing file. Even when it is not directly available, you can retrieve it from MLConfig.

`Screen = MLConfig.Screen;`

In adapters of the scene framework, access it via the tracker object.

`Screen = obj.Tracker.Screen; % in adapters`

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