For each element in a graphics path, calls a custom applier function.
- iOS 2.0+
- macOS 10.2+
- UIKit for Mac 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
- Core Graphics
The path to which the function will be applied.
A pointer to the user data that Core Graphics will pass to the function being applied, or
A pointer to the function to apply. See
CGPathfor more information.
For each element in the specified path, Core Graphics calls the applier function, which can examine (but not modify) the element.