<!--
{
  "availability" : [
    "macCatalyst: 13.1.0 -",
    "macOS: 10.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "CoreGraphics",
  "identifier" : "/documentation/CoreGraphics/CGBeginDisplayConfiguration(_:)",
  "metadataVersion" : "0.1.0",
  "role" : "Function",
  "symbol" : {
    "kind" : "Function",
    "modules" : [
      "Core Graphics"
    ],
    "preciseIdentifier" : "c:@F@CGBeginDisplayConfiguration"
  },
  "title" : "CGBeginDisplayConfiguration(_:)"
}
-->

# CGBeginDisplayConfiguration(_:)

Begins a new set of display configuration changes.

```
func CGBeginDisplayConfiguration(_ config: UnsafeMutablePointer<CGDisplayConfigRef?>?) -> CGError
```

## Parameters

`config`

A pointer to storage you provide for a display configuration. On return, your storage contains a new display configuration.

## Return Value

A result code. If the request to create a new display configuration is successful, the result is `kCGErrorSuccess`. For other possible values, see [`CGError`](/documentation/CoreGraphics/CGError).

## Discussion

This function creates a display configuration object that provides a context for a set of display configuration changes. After you specify the desired changes, you use [`CGCompleteDisplayConfiguration(_:_:)`](/documentation/CoreGraphics/CGCompleteDisplayConfiguration(_:_:)) to apply them in a single transaction.

---

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)