[gtkmm] why is Gtk::Widget::set_parent protected ?

[Detlef Reichl <detlef reichl arcor de>]

hi,

please ignore if this is stupide caus i'm new to gtk--...

i want to make a new container class that simply holds some buttons. for
this i need the Gtk::Widget::set_parent methode. but, caus my new class
is not a subclass of the buttons the set_parent methode is unreacheble
for me.

i think this is the case for most container classes, that they are not
derivatived from the the widgets they want to store.

bey
detlef