Windows Presentation Foundation (WPF) (previously known by the code name "Avalon") is a new presentation framework for Windows XP and Windows Vista, the next version of Windows client operating system. For developers, WPF is a cornucopia of new technologies, including new graphics engine that supports 3-D graphics, animation, and more, an XML-based markup language (XAML) to declare the structure of the Windows UI, and a radical new model for control. These include the XAML markup language and the mapping of XAML markup to WinFX code, model of WPF content, layout, controls, styles, and templates, graphics and animation, and, finally, deployment. Programming Windows Presentation Foundation features: Score C # and XAML examples that show you what it takes to get a WPF application up and running, from a simple "Hello, Avalon" program to play tic-tac-toe insightful discussion of the powerful new programming styles that WPF brings to Windows development, especially a new model for controls A color insert to better illustrate WPF support for 3-D, color, and graphics effects A tutorial on XAML, the new HTML-like markup language to declare the Windows UI An explanation and comparison features that support interoperability with Windows Forms and Windows legacy applications The next generation of Windows applications that will be paved trail into the unknown.