[gtkmm] showing different widgets in a single-item container

[Eli Hadad <eli_hadad sheernetworks com>]

Dear all,

I am trying to show two different widgets which are derived from Gtk::Frame
inside single-item container such as Gtk::Frame.
The selection which widget to show is done by a view menu for example.
I tried to do add and remove to the widgets from the container but I get
segmentation falut.
any idea.

Thanks in advance,
Eli