WPF application with WindowState Maximized and WindowStyle None hides the taskbar. Since my application runs on a Customer Wrapper Application which has its own taskbar and Windows Start button equivalent, i need to ensure that my application doesnt hide the taskbar in maximized mode. I believe its a behavior different from what i have seen in Winforms!
I've faced the same issue. The best approach is to handle this with API Calls. This code worked great for me.
Taskbar with Window Maximized and WindowState to None in WPF