gtk/gtk_since_3_20.go
func (v *FileChooserNativeDialog) SetCancelLabel(cancel_label string) {
	cstr := C.CString(cancel_label)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_file_chooser_native_set_cancel_label(v.native(), (*C.char)(cstr))
}
func (v *FileChooserNativeDialog) SetCancelLabel(cancel_label string) {
	cstr := C.CString(cancel_label)
	defer C.free(unsafe.Pointer(cstr))
	C.gtk_file_chooser_native_set_cancel_label(v.native(), (*C.char)(cstr))
}
// SetCancelLabel is a wrapper around gtk_file_chooser_native_set_cancel_label().