Key-value coding is a mechanism enabled by the NSKeyValueCoding informal protocol that objects adopt to provide indirect access to their properties. When an object is key-value coding compliant, it…
The Objective-C runtime is a runtime library that provides support for the dynamic properties of the Objective-C language, and as such is linked to by all Objective-C apps. Objective-C runtime libr…
A RunLoop object processes input for sources such as mouse and keyboard events from the window system, Port objects, and NSConnection objects. A RunLoop object also processes Timer events.Your appl…