[Qt-interest] optionally hide application icon in taskbar

[Serge]

Hello,

my application when launched, checks, is it located in needed folder on 
disk. If it is in wrong folder, it copies itself to the needed location 
and launches new exemplar of itself from new location. First exemplar is 
closing.

In taskbar appears first icon. Then appears second icon and for some 
period of time there are 2 icons in taskbar. Then first icon disappears. 
But sometimes it is not hiding on Windows7. Is there are a way to tell 
the application not to show icon in taskbar before QApplication object 
is constructed? So that first exemplar would not display icon in taskbar 
at all (it does dot create QApplication).

--
Thank you!