MouseEvent screenX Property

Event Object Reference Event Object


Get coordinates of the mouse pointer, relative to the screen, when the mouse button is clicked on an element:

var x = event.screenX;     // Get the horizontal coordinate
var y = event.screenY;     // Get the vertical coordinate
var coor = "X coords: " + x + ", Y coords: " + y;

The result of coor could be:

X coords: 142, Y coords: 99

Try it yourself »

More "Try it Yourself" examples below.

Definition and Usage

The screenX property returns the horizontal coordinate (according to the users computer screen) of the mouse pointer when an event was triggered.

Tip: To get the vertical coordinate (according to the screen) of the mouse pointer, use the screenY property.

Note: This property is read-only.

Browser Support

screenX Yes Yes Yes Yes Yes



Technical Details

Return Value: A Number, representing the horizontal coordinate of the mouse pointer, in pixels
DOM Version: DOM Level 2 Events


More Examples


A demonstration of the differences between clientX and clientY and screenX and screenY:

var cX = event.clientX;
var sX = event.screenX;
var cY = event.clientY;
var sY = event.screenY;
var coords1 = "client - X: " + cX + ", Y coords: " + cY;
var coords2 = "screen - X: " + sX + ", Y coords: " + sY;

Try it yourself »

Related Pages

HTML DOM reference: MouseEvent screenY Property

HTML DOM reference: MouseEvent clientX Property

HTML DOM reference: MouseEvent clientY Property

Event Object Reference Event Object


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