+ // Internal addition of child windows. differs from class
+ // to class not by using virtual functions but by using
+ // the m_insertCallback.
+ void DoAddChild(wxWindowGTK *child);
+
+ // This methods sends wxPaintEvents to the window. It reads the
+ // update region, breaks it up into rects and sends an event
+ // for each rect. It is also responsible for background erase
+ // events and NC paint events. It is called from "draw" and
+ // "expose" handlers as well as from ::Update()
+ void GtkSendPaintEvents();
+
+ // The methods below are required because many native widgets
+ // are composed of several subwidgets and setting a style for
+ // the widget means setting it for all subwidgets as well.
+ // also, it is nor clear, which native widget is the top
+ // widget where (most of) the input goes. even tooltips have
+ // to be applied to all subwidgets.