if you hit the back button (F10 in the latest WDK, backspace in earlier versions of the WDK) it will bring you back to the sidebar. I believe you should be able to fire the same even with an on-screen button. Maybe one of our developers can give more detail on this thread ;-)
Currently when playing a video back you must return to the dock, will it be possible to return to the sidebar in the future?
Can you please clarify this? Going back to sidebar state is definitely possible in any framework version (not just the latest one) from fullscreen video.
