Component: Screen
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This component is provided by [[block:screen|screen blocks]] (either when placed in the world or when installed in a robot).

Component name: `screen`.  
Callbacks:

- `isOn():boolean`  
  Returns whether the screen is currently on.
- `turnOn():boolean, boolean`  
  Turns the screen on. Returns whether it was off and the new power state.
- `turnOff():boolean, boolean`  
  Turns off the screen. Returns whether it was on and the new power state.
- `getAspectRatio():number, number`  
  The aspect ratio of the screen. For multi-block screens this is the number of blocks, horizontal and vertical.
- `getKeyboards():table`  
  The list of keyboards attached to the screen.
- `setPrecise(enabled:boolean):boolean`
  Set whether to use high-precision mode (sub-pixel mouse event position).  
  //Requires Screen (Tier 3).//
- `isPrecise():boolean`  
  Check whether high-precision mode is enabled (sub-pixel mouse event position).  
  //Requires Screen (Tier 3).//
- `setTouchModeInverted(enabled:boolean):boolean`  
  Sets Inverted Touch mode (Sneak-activate opens GUI if set to true). 
- `isTouchModeInverted():boolean`  
  Check to see if Inverted Touch mode is enabled (Sneak-activate opens GUI is set to true). 
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