CODEWITHSUNDEEP
c++classgiogtkmm4
misha
misha

Reputation: 41

How to convert Gio::Menu inherited class into Gtk::widget

I have the following code

class XMenu: public Gio::Menu
{
    public:
        XMenu();
};

class App : public Gtk::Window
{
    public:
        App();
    protected :
        Gtk::Button btn;
        XMenu menu;
};

XMenu::XMenu()
{
    append("option1", "app.option1");
    append("Quit", "app.quit");
}

App::App() 
{
    set_default_size(600,600);
    btn.set_label("Hello");
    //auto casted_menu = dynamic_cast<Gtk::Widget&>(menu);
    set_child(casted_menu);
}

As you can see I have two custom class one inherits from Gio::Menu the other from Gtk::Window, the goal is to create a menu bar in the App GUI by using a custom menubar created using the XMenu class, when set_child is commented the code compiles without errors but when uncommented the following error is thrown

main.cc:33:19: error: cannot convert ‘XMenu’ to ‘Gtk::Widget&’
   33 |         set_child(menu);
      |                   ^~~~
      |                   |
      |                   XMenu

How can I use this custom menubar in a GUI application?

If I understand correctly this states that XMenu should be a Widget in order to be added, so I tried dynamically casting it into a widget but didn't help

Upvotes: 0

Views: 77

Answers (0)

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