[gtkmm] iterating through the contents of a tree

[Bevis Peters <bevis anvil com>]

I've searched the archives and the web and the gktmm class lists, but 
can't find out how to do this.

I have a Gtk::TreeView with a Gtk::TreeStore, basically following the 
tree view example from the gtkmm pages.  My Gtk::TreeModel::ColumnRecord 
contains two strings (one hidden).  I can multi select entries on the tree.

Now I want to iterate through all the entries selected in my tree when a 
button is pressed, ie something like:

for (Gtk::TreeIter it=m_refTreeModel.begin(); it<m_refTreeModel.end(); 
++it) {
   string str = m_Colmuns[it].m_string_name;
}

Can this be done?  surely it can, though I can't work out how.  More 
details can be supplied ...




bevis