Hi, In closing the attached application, using the menu path: Client | Quit, I get the critical message
Gtk-CRITICAL **: gtk_tristate_accessible_value_get: assertion ‘value->value_class == >K_TRISTATE_ACCESSIBLE_VALUE’ failed What I’m doing wrong ? (Note: I'm using Gtkmm-4.0) --- code #include <gtkmm.h> class Window : public Gtk::Window { public: Window() : vbox (Gtk::Orientation::VERTICAL, 0), refBuilder (Gtk::Builder::create()), refSimpleActionGroup (Gio::SimpleActionGroup::create()) { set_title ("Hello"); set_default_size (200, 200); refSimpleActionGroup->add_action_bool ("done"); refSimpleActionGroup->add_action ("quit", sigc::mem_fun (*this, &Gtk::Widget::hide)); insert_action_group ("menu", refSimpleActionGroup); try { refBuilder->add_from_string (get_menu_info()); } catch (...) {} Glib::RefPtr<Gio::Menu> gmenu = std::dynamic_pointer_cast<Gio::Menu> (refBuilder->get_object ("menubar")); if (gmenu) { auto menubar = Gtk::make_managed<Gtk::PopoverMenuBar>(gmenu); menubar->set_margin (5); vbox.append (*menubar); } set_child (vbox); } private: Glib::ustring get_menu_info() const { return "<interface>" " <menu id='menubar'>" " <submenu>" " <attribute name='label' translatable='yes'>Client</attribute>" " <section>" " <item>" " <attribute name='label' translatable='yes'>Done</attribute>" " <attribute name='action'>menu.done</attribute>" " </item>" " </section>" " <section>" " <item>" " <attribute name='label' translatable='yes'>Quit</attribute>" " <attribute name='action'>menu.quit</attribute>" " </item>" " </section>" " </submenu>" " </menu>" "</interface>"; } Gtk::Box vbox; Glib::RefPtr<Gtk::Builder> refBuilder; Glib::RefPtr<Gio::SimpleActionGroup> refSimpleActionGroup; }; int main (int argc, char *argv[]) { Glib::RefPtr<Gtk::Application> app = Gtk::Application::create ("org.hello"); return app->make_window_and_run<Window>(argc, argv); } -- David Gasa i Castell Linux User #488832
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