Function
GtkShortcutFunc
Parameters
| widget | GtkWidget | 
| The widget passed to the activation. | |
| The data is owned by the caller of the function. | |
| args | GVariant* | 
| The arguments passed to the activation. | |
| The argument can be NULL. | |
| The data is owned by the caller of the function. | |
| user_data | gpointer | 
| The user data provided when activating the action. |