In this chapter, we learned about Quartz 2D and the way that the Cocoa Application Kit communicates with the Quartz Window Server. We also learned a little bit about drawing directly with Quartz inside an NSView object, and then explored Quartz timed entries.

This chapter marks the end of our MathPaper odyssey, although we’ll use parts of it in our next major application, GraphPaper, which starts in Chapter 16. Before we get to GraphPaper, however, we’ll learn much more about the drawRect: method — the proper way to make your NSView show its stuff.