---
title: kCAOnOrderOut
framework: quartzcore
role: symbol
role_heading: Global Variable
path: quartzcore/kcaonorderout
---

# kCAOnOrderOut

The identifier that represents the action taken when the layer is removed from the layer hierarchy or is hidden.

## Declaration

```swift
let kCAOnOrderOut: String
```

## See Also

### Constants

- [kCAOnOrderIn](quartzcore/kcaonorderin.md)
- [kCATransition](quartzcore/kcatransition.md)