The Screen Object in HTML DOM is used to retrieve the information about the visitor; s or client screen. such as height and width of the screen and color resolution of the client screen.
Note: There is no public standard that applies to the screen object.
The Screen Object has some Properties:
- availHeight: It is used to return the height of the clients screen but it does not include the window taskbar.
- availWidth: It is used to return the width of the client screen but it does not include the windows taskbar.
- colorDepth: It is used to return the bit depth of the color palette for displaying images, in bits per pixel.
- Height: It is used to return the whole height of the visitors screen.
- pixelDepth: It is used to return the color resolution of the visitor screen.
- width: It is used to return the whole width of the visitors screen.
Example: Below HTML code returns the height and width of the visitor’s screen.
HTML
<!DOCTYPE html> <html>
<head>
<title>
Returning the Screen height
and width Property in HTML
</title>
<style>
h1 {
color: green;
}
h2 {
font-family: Impact;
}
body {
text-align: center;
}
</style>
</head>
<body>
<h1>GeeksforGeeks</h1>
<h2>
Returning the Screen height and
width Property in HTML
</h2>
<p>
For checking the screen's total height,
double click the "Check Height" button:
</p>
<br>
<p>
For checking the screen's total width,
double click the "Check width" button:
</p>
<button ondblclick="check_height()">
Check Height
</button>
<button ondblclick="check_width()">
Check width
</button>
<p id="height"></p>
<script>
function check_height() {
var h = "Total Screen Height In Pixels : "
+ screen.height;
document.getElementById("height").innerHTML = h;
}
function check_width() {
var w = "Total Screen width In Pixels : "
+ screen.width;
document.getElementById("height").innerHTML = w;
}
</script>
</body>
</html>
|
Output:
Example 2: Below HTML CODE returns the pixelDepth property.
HTML
<!DOCTYPE html> <html>
<head>
<title>
HTML DOM Screen Object
</title>
<style>
h1 {
color: green;
}
h2 {
font-family: Impact;
}
body {
text-align: center;
}
</style>
</head>
<body>
<h1>GeeksforGeeks</h1>
<h2>HTML DOM Screen Object</h2>
<p>
For checking the screen's pixel depth,
click the "submit" button:
</p>
<button onclick="check_pixel_depth()">
Submit
</button>
<p id="geeks"></p>
<script>
function check_pixel_depth() {
var r = "Pixel depth in bits per pixel : "
+ screen.pixelDepth;
document.getElementById("geeks").innerHTML = r;
}
</script>
</body>
</html>
|
Output:
Supported Browsers:
- Google Chrome
- Internet Explorer
- Firefox
- Apple Safari
- Opera mini