func TreePathNewFromString(path string) (*TreePath, error) {
	cstr := C.CString(path)
	defer C.free(unsafe.Pointer(cstr))
	c := C.gtk_tree_path_new_from_string((*C.gchar)(cstr))
	if c == nil {
		return nil, nilPtrErr
	}
	t := &TreePath{c}
	runtime.SetFinalizer(t, (*TreePath).free)
	return t, nil
}
func TreePathNewFromString(path string) (*TreePath, error) {
	cstr := C.CString(path)
	defer C.free(unsafe.Pointer(cstr))
	c := C.gtk_tree_path_new_from_string((*C.gchar)(cstr))
	if c == nil {
		return nil, nilPtrErr
	}
	t := &TreePath{c}
	runtime.SetFinalizer(t, (*TreePath).free)
	return t, nil
}
// TreePathNewFromString is a wrapper around gtk_tree_path_new_from_string().