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void app::showAbout()
{
KAboutApplication * about = new KAboutApplication::KAboutApplication( this, "about", TRUE );
KIconLoader * loader = new KIconLoader();
QPixmap app_ico;
app_ico.load( loader->iconPath( QString( "app" ), -32 ) );
about->setLogo( app_ico );
about->exec();
delete loader;
}

I see the wrong (empty) icon in my about; why?

If i set the icon with about->setIcon("/usr/share/icons/hicolor/32x32/apps/app.png" ); it works.

Thanks,
i've seen that KApplication inherits KIstance that has KIconLoader *
iconLoader () const but.... i'm a newbie... how can i access this iconloader?

I mean: to access QApplication i can use qApp but i don't know how to access my KApplication from the code of my KMainWindow.

S O L V E D ! ! !

I searched and found kapp.

The documentation say:
This instance is always accessible via the 'kapp' global variable.