<!--
{
  "availability" : [
    "macOS: 10.0.0 - 10.14.0"
  ],
  "documentType" : "symbol",
  "framework" : "AppKit",
  "identifier" : "/documentation/AppKit/NSOpenGLPFABackingStore",
  "metadataVersion" : "0.1.0",
  "role" : "Global Variable",
  "symbol" : {
    "kind" : "Global Variable",
    "modules" : [
      "AppKit"
    ],
    "preciseIdentifier" : "c:@Ea@NSOpenGLPFAAllRenderers@NSOpenGLPFABackingStore"
  },
  "title" : "NSOpenGLPFABackingStore"
}
-->

# NSOpenGLPFABackingStore

A Boolean attribute. If present, this attribute indicates that OpenGL only considers renderers that have a back color buffer the full size of the drawable (regardless of window visibility) and that guarantee the back buffer contents to be valid after a call to `NSOpenGLContext` object’s [`flushBuffer()`](/documentation/AppKit/NSOpenGLContext/flushBuffer()).

```
var NSOpenGLPFABackingStore: Int { get }
```

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)