Window: getScreenDetails() method

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The getScreenDetails() method of the Window interface returns a Promise that fulfills with a ScreenDetails object instance representing the details of all the screens available to the user's device.

Syntax

js
getScreenDetails()

Parameters

None.

Return value

A Promise that fulfills with a ScreenDetails object instance.

Exceptions

NotAllowedError DOMException

Thrown if a window-management Permissions-Policy is set that blocks use of the Window Management API, or if the user has explicitly denied the browser's permission request to use the API.

Examples

When getScreenDetails() is invoked, the user will be asked for permission to manage windows on all their displays (the status of this permission can be checked using Permissions.query() to query window-management). Provided they grant permission, the resulting ScreenDetails object contains details of all the screens available to the user's system.

The below example opens a full-size window on each available display.

js
const screenDetails = await window.getScreenDetails();

// Open a full-size window on each screen available to the device
for (const screen of screenDetails.screens) {
  window.open(
    "https://example.com",
    "_blank",
    `left=${screen.availLeft},
    top=${screen.availTop},
    width=${screen.availWidth},
    height=${screen.availHeight}`,
  );
}

Note: See Multi-window learning environment for a full example (see the source code also).

Specifications

Specification
Window Management
# api-window-getScreenDetails-method

Browser compatibility

BCD tables only load in the browser

See also