Summary
In this chapter, you’ve learned a little about the workings of IB and Objective-C. You’ve seen that on-screen objects have corresponding Objective-C objects stored in the computer’s memory. You’ve also seen a special class of object called a control in action, and you’ve seen that a control can have a target, which is another object that is automatically sent a message to perform an action when the control object is manipulated by the user.
In the next chapter, we’ll cover the basics of Objective-C, Cocoa’s native programming language. We’ll also take a look at the basic Objective-C classes that Cocoa provides to make writing complicated programs much easier.
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