How to: create a nonrectangular ChildWindow - part 1

This article describes step by step how to create a non rectangular child window. A ring-shaped child window is created. Step 1 - preparations In expression blend 4 a new Silverlight 4 project is created. A button is added to the surface of MainPage.xaml. This button is later used to call the ChildWindow. Then--add new item… is the Silverlight project by right-clicking on the project->