Hello Once again, today tutorial is about how to create a custom window in wpf application, and how to integrate this application like other normal window by adding functionality into it. So without any further delay let’s get started, this tutorial is based on WPF technology, in which you code in xaml and c# languages, WPF is an acronym for Windows Presentation Foundation, Microsoft Visual studio c# 2010 or lower version are built with WPF technology.