Web Window API | DOM Window fullscreen property
The Window interface has a fullscreen property which tells whether the window is displayed in fullscreen mode or not.
Syntax:
BoolVal = windowReference.fullScreen;
Return value:
- Boolean
- True: If windows is in fullscreen mode.
- False: If windows are not in fullscreen mode.
Example :
<!DOCTYPE html><html> <head> <title> Window fullscreen property </title></head> <body> <center> <h1 style="color:green;"> GeeksForGeeks </h1> <h2>Window fullscreen property</h2> <button onclick="GFGfun();">press</button> <script> function GFGfun() { alert(window.fullScreen); } </script> </center></body> </html> |
Output:
Window not in fullscreen:
Window in fullscreen:
Browser support:
- Firefox 3+
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