By the end of this chapter, you should be able to write applications that can access camera devices in either Qt/C++ or QML. What's more is that you should be able to utilize the status and menu bar in traditional desktop applications, which are historically important and continue to play a crucial role as interactive functional widgets. In addition to this, don't forget the file dialog and message box since they make your coding work easier. In the next chapter, we're going to talk about an advanced topic, plugins, which is a popular way to extend large applications.