[Bug 39305] Sanitarium doesn't display the game surface

https://bugs.winehq.org/show_bug.cgi?id=39305

--- Comment #1 from paulo  ---
Speaking of that, is there any way to force the windowed mode not have a window
decoration at all (that is no close button or application exe name). I want to
run it with windowed mode and change/restore my resolution to 640x480 manually
but the windows decorations are visible even then (specifically the game seems
to adjust the visible window so its '640x480' includes the decorations).