http://bugs.winehq.org/show_bug.cgi?id=21918
--- Comment #17 from Alex Henrie alexhenrie24@gmail.com 2011-12-08 15:11:49 CST --- The bottom line is Notepad++ needs SC_KEYMENU. A side effect of enabling SC_KEYMENU is allowing the Wine system menu, which is already accessible by an obscure key sequence, to be accessed by another obscure key sequence, just like in Windows.
The question of whether or not managed windows should have a Wine system menu in the first place is a separate issue from which key sequences activate it. Therefore, I recommend enabling SC_KEYMENU now and dealing with the Wine system menu question separately.