[Bug 12640] Applications written in Delphi has got minimize, maximize and size controls disabled for its item in taskbar

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=12640





--- Comment #12 from Giuseppe Bilotta <giuseppe.bilotta at gmail.com>  2008-04-20 02:34:46 ---
The situation seems to be more complicated than that: for example, The Bat! has
no minimize button, but it has a maximize button and I can resize it. Its
taskbar button has a minimize command, but the maximize and shade commands are
disabled.

Doing something like minimizing and restoring restores the functionality. I
think this happens because something happens to the zero-sized control window
although it's marked non-resizable (this is, however, something that deserves a
different bug report because it happened even before the 'disappearing taskbar
button' bug).

Also, there are lots of focusing problems because while for example clicking on
the taskbar button brings the visible non-zero-sized window to front, it
doesn't give it focus, which causes problems with e.g.  dead keys. Also
changing focus via alt-tab gives lots of strange problems. Not to mention that
the app window comes up with the ugly <2> specifier that WMs put to
disambiguate windows with the same name.

IMO, mapping the zero-sized window was not the best way fix for the
disappearing taskbar, precisely because of all these problems (the patch I
proposed to fix bug 12264 does not present this problem, AFAICS): we should
just accept the fact that X window managers can't handle the zero-sized control
window properly, and get done with it.


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