---
title: kFxHistogramChannel_Alpha
framework: Professional Video Applications
role: symbol
role_heading: Global Variable
platforms: [fxplug 3.1+]
path: professional_video_applications/kfxhistogramchannel_alpha
---

# kFxHistogramChannel_Alpha

## Declaration

```swift
var kFxHistogramChannel_Alpha: Int { get }
```

## See Also

### Constants

- [kFxHistogramChannel_Blue](professional_video_applications/kfxhistogramchannel_blue.md)
- [kFxHistogramChannel_Green](professional_video_applications/kfxhistogramchannel_green.md)
- [kFxHistogramChannel_RGB](professional_video_applications/kfxhistogramchannel_rgb.md)
- [kFxHistogramChannel_Red](professional_video_applications/kfxhistogramchannel_red.md)