We've covered a lot of ground in this chapter. From data structures to files to networking, you've learned how you can use fundamental Qt core and networking classes to build the backend logic for your application. This information helps you build the business logic in your application.

In the next chapter, we'll start looking at the Qt support to build your presentation logic. We'll take a break from these fundamentals and review the key Qt Widget classes for building desktop applications. You'll learn about the plethora of the basic Qt Widget classes available for your application, how Qt's support for the model-view-controller paradigm works, and finally how to render web content in your application using QWebView, Qt's integrated WebKit-based browser for application development.