add_button
Description:
Adds a button with the given text.
Note:
Use [class@Gtk.Window] instead
GTK arranges things so that clicking the button will emit the [signal@Gtk.Dialog:GtkDialog:response] signal with the given
response_id. The button is appended to the end of the dialog’s action area. The button widget is returned, but usually you don’t
need it.
Parameters:
| this |
a `GtkDialog` |
| button_text |
text of button |
| response_id |
response ID for the button |
Returns:
|
the `GtkButton` widget that was added |