In the previous chapter, you were introduced to the functionality contained within the
System.Drawing.dll assemblies. As explained, the Windows Forms API is the original GUI toolkit of the .NET platform, which provides numerous types that can be used to build sophisticated desktop user interfaces. While it is true that Windows Forms/GDI+ is still entirely supported under .NET 3.5, Microsoft shipped a brand-new desktop API termed Windows Presentation Foundation (WPF) beginning with the release of .NET 3.0.
This initial WPF chapter begins by examining the motivation behind this new UI framework and provides a brief overview of the various types of WPF applications ...