Thank you for picking up WPF 4 Unleashed! Windows Presentation Foundation (WPF) is Microsoft’s premier technology for creating Windows graphical user interfaces, whether they consist of plain forms, document-centric windows, animated cartoons, videos, immersive 3D environments, or all of the above. WPF is a technology that makes it easier than ever to create a broad range of applications. It’s also the basis for Silverlight, which has extended WPF technology onto the Web and into devices such as Windows phones. Ever since WPF was publicly announced in 2003 (with the code name “Avalon”), it has gotten considerable attention for the ways in which it revolutionizes the process of.