WPF is resolution independent  and vector based way of presenting windows apps . it extends  functionality already present in windows development with its core being XAML - Extensible Application Markup Language , 2 and 3D graphics plus animation . This offers a new programming model since you can use both markup and code behind

This effectively sets the platform for developers to create applications with very rich user content either as stand-alone or browser hosted applications  

Can anyone explain the different elements involved in WPF application practically?