---
title: UIWindowScene.GeometryPreferences.Mac
framework: uikit
role: symbol
role_heading: Class
path: uikit/uiwindowscene/geometrypreferences/mac
---

# UIWindowScene.GeometryPreferences.Mac

An object that represents the geometry preferences for a window scene in an app built with Mac Catalyst.

## Declaration

```swift
class Mac
```

## Overview

Overview Use this class to express macOS-specific geometry preferences when you call requestGeometryUpdate(_:errorHandler:).

## Topics

### Creating a geometry preferences object

- [init(systemFrame:)](uikit/uiwindowscene/geometrypreferences/mac/init(systemframe:).md)
- [init()](uikit/uiwindowscene/geometrypreferences/mac/init().md)

### Accessing geometry information

- [systemFrame](uikit/uiwindowscene/geometrypreferences/mac/systemframe.md)

## Relationships

### Inherits From

- [UIWindowScene.GeometryPreferences](uikit/uiwindowscene/geometrypreferences.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Related Documentation

- [effectiveGeometry](uikit/uiwindowscene/effectivegeometry.md)
- [requestGeometryUpdate(_:errorHandler:)](uikit/uiwindowscene/requestgeometryupdate(_:errorhandler:).md)

### Working with window geometry

- [effectiveGeometry](uikit/uiwindowscene/effectivegeometry.md)
- [requestGeometryUpdate(_:errorHandler:)](uikit/uiwindowscene/requestgeometryupdate(_:errorhandler:).md)
- [UIWindowScene.Geometry](uikit/uiwindowscene/geometry.md)
- [UIWindowScene.GeometryPreferences](uikit/uiwindowscene/geometrypreferences.md)
- [UIWindowScene.GeometryPreferences.iOS](uikit/uiwindowscene/geometrypreferences/ios.md)
- [UIWindowScene.GeometryPreferences.Vision](uikit/uiwindowscene/geometrypreferences/vision.md)
- [UIProposedSceneSizeNoPreference](uikit/uiproposedscenesizenopreference.md)