http://bugs.winehq.org/show_bug.cgi?id=10476
--- Comment #10 from Bamm Gabriana bammzilla@gabriana.com 2007-11-22 04:10:10 --- Tested it in Ubuntu and Kubuntu. In Ubuntu its titlebar is replaced by Ubuntu's titlebar. In Kubuntu there is no titlebar at all. I will try other distros later to see its behavior.
Could be a difference in wine versions too. Maybe you have it checked but your WM isn't creating the title bar properly, what happens if you uncheck it?
If I uncheck it I couldn't minimize the window and can't control it using the window manager. However the titlebar did appear. This is not the behavior I want though. I want to have a titlebar and have the wm control the window.
I also noticed that Safari sends a message to the wm to not draw the window decorations, because it draws its own.