Returns the class definition of a specified class.
- iOS 2.0+
- macOS 10.0+
- tvOS 9.0+
- watchOS 2.0+
- Mac Catalyst 13.0+Beta
The name of the class to look up.
The Class object for the named class, or
nil if the class is not registered with the Objective-C runtime.
objc_getClass(_:) is different from this function in that if the class is not registered,
objc_getClass(_:) calls the class handler callback and then checks a second time to see whether the class is registered. This function does not call the class handler callback.
Obtaining Class Definitions
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