[gtkmm] Drag and drop onto Gtk::Notebook

[Callum Prentice <lists callum com>]

i would like to be able to drag things from a given tab on a Gtk::Notebook onto a different
tab and receive notification as to which tab was dropped onto.

i've tried what i thought were the obvious ways (making the notebook and then the contents of
the tabs drop targets) but in both cases i didn't get what i wanted.

does anyone know if this is possible and if so, how to do it ?

thanks in advance.