By default the Silverlight 4 ChildWindow is rectangular. Changing the shape of a ChildWindow, including a non rectangular shape for the Chrome, is quite straightforward. I built some examples for that. One, a donut shaped ChildWindow, you will find at the Download URL. At the View Sample URL you will find an article on how to create a non rectangular ChildWindow.
With this knowledge in your hands you can create every shape for a ChildWindow. ...
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