int Alert::prompt(docstring const & title, docstring const & question,
int default_button, int escape_button,
docstring const & b1, docstring const & b2, docstring const & b3)
{
int Alert::prompt(docstring const & title, docstring const & question,
int default_button, int escape_button,
docstring const & b1, docstring const & b2, docstring const & b3)
{