* method of connecting and disconnecting from a Session with
* all other objects that have a handle on a Session.
*/
-class ArdourWindow : public Gtk::Window, public virtual ARDOUR::SessionHandlePtr, public Gtkmm2ext::VisibilityTracker
+class ArdourWindow : public Gtk::Window, public ARDOUR::SessionHandlePtr, public Gtkmm2ext::VisibilityTracker
{
public:
ArdourWindow (std::string title);