---
title: kCVPixelBufferIOSurfaceCoreAnimationCompatibilityKey
framework: corevideo
role: symbol
role_heading: Global Variable
path: corevideo/kcvpixelbufferiosurfacecoreanimationcompatibilitykey
---

# kCVPixelBufferIOSurfaceCoreAnimationCompatibilityKey

A key to a Boolean value that indicates whether Core Animation can display the pixel buffer.

## Declaration

```swift
let kCVPixelBufferIOSurfaceCoreAnimationCompatibilityKey: CFString
```

## Discussion

Discussion The value for this key is of type CFBoolean. You can use this key instead of explicit pixel format keys. When you use this key with other media frameworks, Video Toolbox chooses the best pixel format for Core Animation to use.

## See Also

### Constants

- [kCVPixelBufferMemoryAllocatorKey](corevideo/kcvpixelbuffermemoryallocatorkey.md)
- [kCVPixelBufferPixelFormatTypeKey](corevideo/kcvpixelbufferpixelformattypekey.md)
- [kCVPixelBufferWidthKey](corevideo/kcvpixelbufferwidthkey.md)
- [kCVPixelBufferHeightKey](corevideo/kcvpixelbufferheightkey.md)
- [kCVPixelBufferExtendedPixelsLeftKey](corevideo/kcvpixelbufferextendedpixelsleftkey.md)
- [kCVPixelBufferExtendedPixelsTopKey](corevideo/kcvpixelbufferextendedpixelstopkey.md)
- [kCVPixelBufferExtendedPixelsRightKey](corevideo/kcvpixelbufferextendedpixelsrightkey.md)
- [kCVPixelBufferExtendedPixelsBottomKey](corevideo/kcvpixelbufferextendedpixelsbottomkey.md)
- [kCVPixelBufferBytesPerRowAlignmentKey](corevideo/kcvpixelbufferbytesperrowalignmentkey.md)
- [kCVPixelBufferCGBitmapContextCompatibilityKey](corevideo/kcvpixelbuffercgbitmapcontextcompatibilitykey.md)
- [kCVPixelBufferCGImageCompatibilityKey](corevideo/kcvpixelbuffercgimagecompatibilitykey.md)
- [kCVPixelBufferOpenGLCompatibilityKey](corevideo/kcvpixelbufferopenglcompatibilitykey.md)
- [kCVPixelBufferPlaneAlignmentKey](corevideo/kcvpixelbufferplanealignmentkey.md)
- [kCVPixelBufferIOSurfacePropertiesKey](corevideo/kcvpixelbufferiosurfacepropertieskey.md)
- [kCVPixelBufferOpenGLESCompatibilityKey](corevideo/kcvpixelbufferopenglescompatibilitykey.md)