Menus popup
Menus are normally just added to a window, but they can also be displayed temporarily as the result of a mouse button click. For instance, a context menu might be displayed when the user clicks their right mouse button.
The UI layout for a popup menu should use the popup node. For instance:
Glib::ustring ui_info = "<ui>" " <popup name='PopupMenu'>" " <menuitem action='ContextEdit'/>" " <menuitem action='ContextProcess'/>" " <menuitem action='ContextRemove'/>" " </popup>" "</ui>"; m_refUIManager->add_ui_from_string(ui_info);
To show the popup menu, use Gtk::Menu's popup() method, providing the button identifier and the time of activation, as provided by the button_press_event signal, which you will need to handle anyway. For instance:
bool ExampleWindow::on_button_press_event(GdkEventButton* event) { if( (event->type == GDK_BUTTON_PRESS) && (event->button == 3) ) { m_Menu_Popup->popup(event->button, event->time); return true; //It has been handled. } else return false; }