Screen
The Screen
interface represents a screen, usually the one on which the current window is being rendered.
Usually it is the one on which the current window is being rendered, obtained using window.screen
.
Properties
Screen.availTop
(en-US)- Specifies the y-coordinate of the first pixel that is not allocated to permanent or semipermanent user interface features.
Screen.availLeft
(en-US)- Returns the first available pixel available from the left side of the screen.
Screen.availHeight
(en-US)- Specifies the height of the screen, in pixels, minus permanent or semipermanent user interface features displayed by the operating system, such as the Taskbar on Windows.
Screen.availWidth
(en-US)- Returns the amount of horizontal space in pixels available to the window.
Screen.colorDepth
- Returns the color depth of the screen.
Screen.height
(en-US)- Returns the height of the screen in pixels.
Screen.left
(en-US)- Returns the distance in pixels from the left side of the main screen to the left side of the current screen.
Screen.orientation
(en-US)- Returns the current orientation of the screen.
Screen.pixelDepth
(en-US)- Gets the bit depth of the screen.
Screen.top
(en-US)- Returns the distance in pixels from the top side of the current screen.
Screen.width
(en-US)- Returns the width of the screen.
Screen.mozEnabled
(en-US)- Boolean. Setting to false will turn off the device's screen.
Screen.mozBrightness
(en-US)- Controls the brightness of a device's screen. A double between 0 and 1.0 is expected.
Events handler
Screen.onorientationchange
(en-US)- A handler for the
orientationchange (en-US)
events.
Methods
Screen.lockOrientation
(en-US)- Lock the screen orientation (only works in fullscreen or for installed apps)
Screen.unlockOrientation
(en-US)- Unlock the screen orientation (only works in fullscreen or for installed apps)
Methods inherit from EventTarget
(en-US)
EventTarget.addEventListener()
-
Registers an event handler of a specific event type on the
EventTarget
. EventTarget.removeEventListener()
-
Removes an event listener from the
EventTarget
. EventTarget.dispatchEvent()
-
Dispatches an event to this
EventTarget
.
Example
if (screen.pixelDepth < 8) {
// use low-color version of page
} else {
// use regular, colorful page
}
Specification
CSSOM View