# addSceneRepresentation(_:) Adds the specified SwiftUI scene representation to the current application. ``` @MainActor @preconcurrency func addSceneRepresentation(_ representation: NSHostingSceneRepresentation) where C : Scene ``` ## Discussion Scenes defined by the representation can be presented programmatically via the environment actions available on `NSHostingSceneRepresentation`, or when the app receives an external event such as a URL. For example, you can add a `Settings` scene to your app and present it when the corresponding menu item is selected: ``` import AppKit import SwiftUI @main class ApplicationDelegate: NSApplicationDelegate { let scene = NSHostingSceneRepresentation { Settings { SettingsView() } } func applicationWillFinishLaunching( _ notification: Notification ) { NSApplication.shared.addSceneRepresentation(scene) } @IBAction func showAppSettings(_ sender: NSMenuItem) { scene.environment.openSettings() } } ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)