Release private data or resources associated with the pattern.
- iOS 2.0+
- macOS 10.2+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
- Core Graphics
A generic pointer to private data shared among your callback functions. This is the same pointer you supplied to
bounds: matrix: xStep: yStep: tiling: is Colored: callbacks:)
Quartz calls your release function when it frees your pattern object.
To learn how to associate your release function with a Quartz pattern, see