# ControlWidgetConfigurationBuilder A custom attribute that constructs a control widget’s body. ``` @resultBuilder struct ControlWidgetConfigurationBuilder ``` ## Overview The `@ControlWidgetConfigurationBuilder` attribute allows your control widget’s body closure to produce a control widget configuration after zero or more other statements: ``` struct GarageDoorOpener: ControlWidget { var body: some ControlWidgetConfiguration { let kind = "com.yourcompany.GarageDoorOpener" StaticControlConfiguration( kind: kind ) { ... } } } ``` ## Topics ### Type Methods [`static func buildBlock(Content) -> some ControlWidgetConfiguration`](/documentation/SwiftUI/ControlWidgetConfigurationBuilder/buildBlock(_:)) Passes a single control widget configuration written as a child control through unmodified. [`static func buildExpression(Content) -> Content`](/documentation/SwiftUI/ControlWidgetConfigurationBuilder/buildExpression(_:)) Builds an expression within the builder. --- 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)