https://bugs.winehq.org/show_bug.cgi?id=12799
--- Comment #20 from gat gatlinsullivan@yahoo.com --- I renamed ~.wine, re-installed Notepad++ 6.9. I still produce the titlebar with F23 x86_64 with Wine 1.9.5. I will re-test with 1.9.6. later. Although, I can't get the titlebar captured in a screenshot with GTK even though it is there.