In this chapter, we have implemented an application that uses the multi-touch trackpad to paint with our fingers. We have also implemented several multi-touch gestures to clear the painting from our view.
Specifically, we covered what is multi-touch, how to implement custom views and subviews, how to select colors from a color well and draw strokes in a custom view, how to manage the mouse cursor, and how to receive keyboard, touch, and gesture events and respond to them.
Now that we have spent some time looking at the cool multi-touch and gesture event handling and how to draw in a view, we are going to shift gears and look at another cool input device, the iSight camera. We will learn how to take still pictures with the camera, which is the topic of our next chapter.