This set of topics provides an overview of component design and the process of writing components for Delphi applications. The material here assumes that you are familiar with Delphi and its standard components. 

The main topics discussed are

• Class library
• Components and classes
• Creating components
• What goes into a component?
• Creating a new component
• Testing uninstalled components
• Testing installed components

For information on installing new components, see Installing component packages.