Just as a book without binding is simply a stack of papers, the code we've written doesn't become what it needs to be unless it is properly incorporated and managed. The groundwork we've laid down in this chapter will aid us greatly in implementing a fully functional GUI system but it only represents all the pieces being laid out.
So far, we have covered the basic design of GUI elements and windows, as well as implementing quite a few useful features that different types of elements can use. While that is a lot of code, we're not quite done yet. In the next chapter, we will be bringing all of the pieces we worked on together, as well as creating actual GUI elements. See you there!