# DismissWindowAction An action that dismisses a window associated to a particular scene. ``` @MainActor @preconcurrency struct DismissWindowAction ``` ## Overview Use the [`dismissWindow`](/documentation/SwiftUI/EnvironmentValues/dismissWindow) environment value to get the instance of this structure for a given [`Environment`](/documentation/SwiftUI/Environment). Then call the instance to dismiss a window. You call the instance directly because it defines a [`callAsFunction(id:)`](/documentation/SwiftUI/DismissWindowAction/callAsFunction(id:)) method that Swift calls when you call the instance. For example, you can define a button that closes an auxiliary window: ``` @main struct MyApp: App { var body: some Scene { WindowGroup { ContentView() } #if os(macOS) Window("Auxiliary", id: "auxiliary") { AuxiliaryContentView() } #endif } } struct DismissWindowButton: View { @Environment(\.dismissWindow) private var dismissWindow var body: some View { Button("Close Auxiliary Window") { dismissWindow(id: "auxiliary") } } } ``` If the window was opened with [`pushWindow`](/documentation/SwiftUI/EnvironmentValues/pushWindow), the original presenting will reappear when this action is performed. ## Topics ### Calling the action [`func callAsFunction()`](/documentation/SwiftUI/DismissWindowAction/callAsFunction()) Dismisses the current window. [`func callAsFunction(id: String)`](/documentation/SwiftUI/DismissWindowAction/callAsFunction(id:)) Dismisses the window that’s associated with the specified identifier. [`func callAsFunction(id: String, value: D)`](/documentation/SwiftUI/DismissWindowAction/callAsFunction(id:value:)) Dismisses the window defined by the window group that is presenting the specified value type and that’s associated with the specified identifier. [`func callAsFunction(value: D)`](/documentation/SwiftUI/DismissWindowAction/callAsFunction(value:)) Dismisses the window defined by the window group that is presenting the specified value type. ## Relationships ### Conforms To [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Sendable`](/documentation/Swift/Sendable) --- 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)