<!--
{
  "availability" : [
    "iOS: 26.0.0 -",
    "iPadOS: 26.0.0 -",
    "macCatalyst: 26.0.0 -",
    "macOS: 26.0.0 -",
    "tvOS: 26.0.0 -",
    "visionOS: 26.0.0 -",
    "watchOS: 26.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "CoreVideo",
  "identifier" : "/documentation/CoreVideo/CVReadOnlyPixelBuffer/withUnsafeBuffer(_:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "Core Video"
    ],
    "preciseIdentifier" : "s:9CoreVideo21CVReadOnlyPixelBufferC010withUnsafeF0yxxSo11CVBufferRefaKYTXEKlF"
  },
  "title" : "withUnsafeBuffer(_:)"
}
-->

# withUnsafeBuffer(_:)

```
final func withUnsafeBuffer<R>(_ body: (CVPixelBuffer) throws -> sending R) rethrows -> sending R
```

---

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)