---
title: kCGImageDestinationEncodeToISOGainmap
framework: imageio
role: symbol
role_heading: Global Variable
path: imageio/kcgimagedestinationencodetoisogainmap
---

# kCGImageDestinationEncodeToISOGainmap

## Declaration

```swift
let kCGImageDestinationEncodeToISOGainmap: CFString
```