The remaining sections of this chapter give some real examples of component creation. The components created here serve two primary purposes. First, they illustrate the techniques explained in the first part of this chapter. Second, you can actually use these components in your applications. You might even decide to extend their functionality to meet your needs.
Extending Win32 Component Wrapper Capabilities
In some cases, you might want to extend the functionality of existing components, especially those components that wrap the Win32 control classes. We're going to show you how to do this by creating two components that extend the behavior of the TMemo control and the TListBox control.