Describes the properties declared by a class.
- iOS 2.0+
- macOS 10.5+
- tvOS 9.0+
- watchOS 1.0+
The class you want to inspect.
On return, contains the length of the returned array. If
NULL, the length is not returned.
An array of pointers of type
objc_property_t describing the properties declared by the class. Any properties declared by superclasses are not included. The array contains
*out pointers followed by a
NULL terminator. You must free the array with
cls declares no properties, or