# UIKit macros Macros that UIKit defines. ## Topics ### Macros [`Preview(_:traits:body:)`](/documentation/UIKit/Preview(_:traits:body:)-c7kr) [`Preview(_:traits:body:)`](/documentation/UIKit/Preview(_:traits:body:)-en9c) [`IBSegueAction`](/documentation/UIKit/IBSegueAction) [`NSLAYOUTANCHOR_EXTERN`](/documentation/UIKit/NSLAYOUTANCHOR_EXTERN) [`NSLAYOUTCONSTRAINT_EXTERN`](/documentation/UIKit/NSLAYOUTCONSTRAINT_EXTERN) [`UIKIT_AVAILABLE_IOS_ONLY`](/documentation/UIKit/UIKIT_AVAILABLE_IOS_ONLY) [`UIKIT_AVAILABLE_IOS_TVOS`](/documentation/UIKit/UIKIT_AVAILABLE_IOS_TVOS) [`UIKIT_AVAILABLE_IOS_WATCHOS_TVOS`](/documentation/UIKit/UIKIT_AVAILABLE_IOS_WATCHOS_TVOS) [`UIKIT_AVAILABLE_TVOS_ONLY`](/documentation/UIKit/UIKIT_AVAILABLE_TVOS_ONLY) [`UIKIT_AVAILABLE_WATCHOS_ONLY`](/documentation/UIKit/UIKIT_AVAILABLE_WATCHOS_ONLY) [`UIKIT_CLASS_AVAILABLE_IOS_ONLY`](/documentation/UIKit/UIKIT_CLASS_AVAILABLE_IOS_ONLY) [`UIKIT_CLASS_AVAILABLE_IOS_TVOS`](/documentation/UIKit/UIKIT_CLASS_AVAILABLE_IOS_TVOS) [`UIKIT_CLASS_AVAILABLE_IOS_WATCHOS_TVOS`](/documentation/UIKit/UIKIT_CLASS_AVAILABLE_IOS_WATCHOS_TVOS) [`UIKIT_CLASS_AVAILABLE_TVOS_ONLY`](/documentation/UIKit/UIKIT_CLASS_AVAILABLE_TVOS_ONLY) [`UIKIT_CLASS_AVAILABLE_WATCHOS_ONLY`](/documentation/UIKit/UIKIT_CLASS_AVAILABLE_WATCHOS_ONLY) [`UIKIT_EXTERN`](/documentation/UIKit/UIKIT_EXTERN) [`UIKIT_EXTERN_C_BEGIN`](/documentation/UIKit/UIKIT_EXTERN_C_BEGIN) [`UIKIT_EXTERN_C_END`](/documentation/UIKit/UIKIT_EXTERN_C_END) [`UIKIT_HAS_UIFOUNDATION_SYMBOLS`](/documentation/UIKit/UIKIT_HAS_UIFOUNDATION_SYMBOLS) [`UIKIT_STATIC_INLINE`](/documentation/UIKit/UIKIT_STATIC_INLINE) [`UIKIT_SWIFT_FORWARD_DECLARE`](/documentation/UIKit/UIKIT_SWIFT_FORWARD_DECLARE) [`UITableViewCellStateEditingMask`](/documentation/UIKit/UITableViewCellStateEditingMask) --- 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)