In gtkmm 2.x I had, Glib::RefPtr<Gio::SimpleActionGroup> m_refActionGroup;
... m_refActionGroup->get_action("PlacepieceBlackPawn").set_sensitive(row != 0 && row != 7); With gtkmm 3.x it seems that I am forced to do: static_cast<Gio::SimpleAction*>(m_refActionGroup->lookup_action("PlacepieceBlackPawn").get())->set_enabled(row != 0 && row != 7); Any other attempt (that would look at lot more sane and logical) gives a compile error in a gtkmm header - or maybe I'm missing something? The most logical thing would be for 'Gio::SimpleActionGroup::lookup_action' to return a Glib::RefPtr<Gio::SimpleAction>, in which case I could do just: m_refActionGroup->lookup_action("PlacepieceBlackPawn")->set_enabled(row != 0 && row != 7); The builtin cast of Glib::RefPtr isn't working, aka Glib::RefPtr<Gio::SimpleAction> action = m_refActionGroup->lookup_action("PlacepieceBlackPawn"); Neither is, static_cast<Glib::RefPtr<Gio::SimpleAction>>(m_refActionGroup->lookup_action("PlacepieceBlackPawn"))->set_enabled(row != 0 && row != 7); How am I supposed to get my Gio::SimpleAction back? Carlo PS lookup_action return a Gio::Action, which is a base class and doesn't have the set_enabled method. _______________________________________________ gtkmm-list mailing list gtkmm-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtkmm-list