---
title: systemFrame
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uiwindowscene/geometrypreferences/mac/systemframe
---

# systemFrame

The preferred frame of the scene, in system coordinates.

## Declaration

```swift
var systemFrame: CGRect? { get set }
```

## Discussion

Discussion This property represents the preferred frame of the scene in the system coordinate space, where an origin of (0, 0) corresponds to the top-left corner of the main display. The default value is CGRectNull, which indicates no preferred frame.