Function
Gtk.ShortcutFunc
Parameters
| widget | GtkWidget | 
| The widget passed to the activation | |
| Ownership is not transferred to the callee | |
| args | GVariant* | 
| The arguments passed to the activation | |
| Can be NULL | |
| Ownership is not transferred to the callee | |
| user_data | gpointer | 
| The user data provided when activating the action |