With Glade Designer that lets you set up Gtk-Ui's you can check the option that windows are not shown in the launcher. If I take a look at the ui-file generated by Glade, it says <property name="skip_taskbar_hint">True</property>. In gtk code this hint is window.set_property('skip-taskbar-hint', True). However I believe that this option is not exclusively Gtk-specific, and want to apply this one on my PyQt4-app. The Ubuntu window manager must be able to receive that hint, otherwise I would see the window of a gtk-application i use (stickynotes-indicator). So there MUST be a way of doing this in Qt or any other language, right?

Does anybody know such an option? Python or Qt syntax, doesn't matter!

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object.setWindowFlags(QtCore.Qt.SplashScreen)