---
title: portraitUpsideDown
framework: uikit
role: symbol
role_heading: Type Property
path: uikit/uiinterfaceorientationmask/portraitupsidedown
---

# portraitUpsideDown

The view controller supports an upside-down portrait interface orientation.

## Declaration

```swift
static var portraitUpsideDown: UIInterfaceOrientationMask { get }
```

## See Also

### Constants

- [portrait](uikit/uiinterfaceorientationmask/portrait.md)
- [landscapeLeft](uikit/uiinterfaceorientationmask/landscapeleft.md)
- [landscapeRight](uikit/uiinterfaceorientationmask/landscaperight.md)
- [landscape](uikit/uiinterfaceorientationmask/landscape.md)
- [all](uikit/uiinterfaceorientationmask/all.md)
- [allButUpsideDown](uikit/uiinterfaceorientationmask/allbutupsidedown.md)