In the previous chapter, we took a look at Application Components and how they’re like building blocks in the CC Framework that allow you to build any type of application you want.  The Image Viewer is a special type of Application Component within the CC Framework that is devoted to the display and manipulation of DICOM images.  It has its own API and object model that allows the plugin writer to create image processing tools, manipulate how images are laid out on the screen and even override how the rendering of image data is actually done.  In this chapter, we examine how the Image Viewer Component (IVC) is structured as well as the facilities that it offers to plugin writers.