http://blogs.msdn.com/llobo/archive/2006/03/09/Non-Rectangular-Window-in-WPF-.aspxThere seemed to be quite a lot of interest in my previous post on non-rectangular spash screen and I also received a lot of requests to post code to move around such a window. The magic to this is to use a thumb and then use the dragdelta event. The codeen-USCommunityServer 2.1 SP1 (Build: 61025.2)