Function 関数

objc_getClass

Returns the class definition of a specified class.

Declaration 宣言 

id objc_getClass(const char *name);

Parameters パラメータ

name

The name of the class to look up.

Return Value 戻り値

The Class object for the named class, or nil if the class is not registered with the Objective-C runtime.

Discussion 解説

objc_getClass is different from objc_lookUpClass 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. objc_lookUpClass does not call the class handler callback.

Special Considerations 特別な注意事項

Earlier implementations of this function (prior to OS X v10.0) terminate the program if the class does not exist.

See Also 参照

Obtaining Class Definitions

objc_getClassList
Obtains the list of registered class definitions.
objc_copyClassList
Creates and returns a list of pointers to all registered class definitions.
objc_lookUpClass
Returns the class definition of a specified class.
objc_getRequiredClass
Returns the class definition of a specified class.
objc_getMetaClass
Returns the metaclass definition of a specified class.