http://bugs.winehq.org/show_bug.cgi?id=31291
--- Comment #7 from Rico kgbricola@web.de 2012-09-18 09:41:05 CDT --- We press one key, e.g. the "ä". See http://upload.wikimedia.org/wikipedia/commons/thumb/3/36/KB_Germany.svg/800p....
The combination you've given "Alt Gr + [ + a" doesn't work here. I get "[æ".