http://bugs.winehq.org/show_bug.cgi?id=34315
--- Comment #8 from Lope lopeonline@gmail.com 2013-08-21 12:38:11 CDT --- This is my understanding of the different behaviors in Win/Linux (which may be completely wrong) In windows any HWND_TOP window has an equal opportunity to be on top of another HWND_TOP window. It will be brought ontop of other windows by an event such as: * Focusing the window * Making the window TOPMOST temporarily and then returning it to NOTOPMOST.
Wine/Linux seems to re-organize window Z-Order when setting NOTOPMOST which is wrong. NOTOPMOST is not supposed to trigger any Z-Order change.