---
title: kCVImageBufferPixelAspectRatioHorizontalSpacingKey
framework: corevideo
role: symbol
role_heading: Global Variable
path: corevideo/kcvimagebufferpixelaspectratiohorizontalspacingkey
---

# kCVImageBufferPixelAspectRatioHorizontalSpacingKey

A key to the horizontal component of the image buffer aspect ratio.

## Declaration

```swift
let kCVImageBufferPixelAspectRatioHorizontalSpacingKey: CFString
```

## Discussion

Discussion The horizontal spacing value is of type CFNumber.

## See Also

### Constants

- [kCVImageBufferPixelAspectRatioVerticalSpacingKey](corevideo/kcvimagebufferpixelaspectratioverticalspacingkey.md)