---
title: alphaIsOpaqueHint
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/vimagecvimageformat/alphaisopaquehint
---

# alphaIsOpaqueHint

The alpha hint of the Core Video image format.

## Declaration

```swift
var alphaIsOpaqueHint: Bool { get set }
```

## Discussion

Discussion In the case where an image format contains an alpha channel, but the image is fully opaque, set this value to true.

## See Also

### Related Documentation

- [vImageCVImageFormat_GetAlphaHint(_:)](accelerate/vimagecvimageformat_getalphahint(_:).md)
- [vImageCVImageFormat_SetAlphaHint(_:_:)](accelerate/vimagecvimageformat_setalphahint(_:_:).md)

### Inspecting a Core Video image format’s properties

- [channelCount](accelerate/vimagecvimageformat/channelcount.md)
- [channels](accelerate/vimagecvimageformat/channels.md)
- [channelDescription(bufferType:)](accelerate/vimagecvimageformat/channeldescription(buffertype:).md)
- [formatCode](accelerate/vimagecvimageformat/formatcode.md)
- [chromaSiting](accelerate/vimagecvimageformat/chromasiting-swift.property.md)
- [colorSpace](accelerate/vimagecvimageformat/colorspace.md)