Adds a button with the given text and sets things up so that
clicking the button will emit the #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.
Adds a button with the given text and sets things up so that clicking the button will emit the #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.