---
title: kCVOpenGLBufferPoolMaximumBufferAgeKey
framework: Core Video
role: symbol
role_heading: Global Variable
platforms: [macOS 10.4+]
path: corevideo/kcvopenglbufferpoolmaximumbufferagekey
---

# kCVOpenGLBufferPoolMaximumBufferAgeKey

The maximum time that unused buffers should be kept before they are deallocated (type CFAbsoluteTime).

## Declaration

```swift
let kCVOpenGLBufferPoolMaximumBufferAgeKey: CFString
```

## See Also

### Constants

- [kCVOpenGLBufferPoolMinimumBufferCountKey](corevideo/kcvopenglbufferpoolminimumbuffercountkey.md)