mouse button event and gtkmm-4.0

[Duncan Duncan <duncan4031 gmail com>]

Hello

I'm on Ubuntu 22.04 and use gtkmm-4.0

There is Gtk::EventControllerKey to capture keyboard event and a good example here https://developer-old.gnome.org/gtkmm-tutorial/stable/chapter-keyboardevents.html.en

But how to capture key mouse event ?

I don't find anything in the documentation's gtkmm-4.0

Could someone explain how to get  event key mouse ?

Thanks