---
title: CGImageAlphaInfo.none
framework: coregraphics
role: symbol
role_heading: Case
path: coregraphics/cgimagealphainfo/none
---

# CGImageAlphaInfo.none

There is no alpha channel.

## Declaration

```swift
case none
```

## See Also

### Constants

- [CGImageAlphaInfo.first](coregraphics/cgimagealphainfo/first.md)
- [CGImageAlphaInfo.last](coregraphics/cgimagealphainfo/last.md)
- [CGImageAlphaInfo.noneSkipFirst](coregraphics/cgimagealphainfo/noneskipfirst.md)
- [CGImageAlphaInfo.alphaOnly](coregraphics/cgimagealphainfo/alphaonly.md)
- [CGImageAlphaInfo.noneSkipLast](coregraphics/cgimagealphainfo/noneskiplast.md)
- [CGImageAlphaInfo.premultipliedFirst](coregraphics/cgimagealphainfo/premultipliedfirst.md)
- [CGImageAlphaInfo.premultipliedLast](coregraphics/cgimagealphainfo/premultipliedlast.md)