http://bugs.winehq.org/show_bug.cgi?id=31527
--- Comment #4 from Daniel Jelinski djelinski1@gmail.com 2012-11-24 08:45:42 CST --- I'm not sure about that. I mean, there are quite a few differences, but HDN_ENDTRACKW is sent under both native and builtin comctl. With native: - header receives LBUTTONUP - header sends HDN_ENDTRACKW to listview - listview sends HDN_ENDTRACKA to form With builtin comctl first 2 points are the same, but listview does not send any notifications to form. There are more differences in +message log later on, but these may be caused by delphi. I didn't have a chance to compare logs from non-subclassed listview yet.