Creates a data consumer that writes to a CFData object.
- iOS 2.0+
- macOS 10.4+
- UIKit for Mac 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
The CFData object to write to.
You can use this function when you need to represent Core Graphics data as a
CFDataRef type. For example, you might create a
CFDataRef object that you then copy to the pasteboard.
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