The C function gtk_style_new() returns a GtkStyle* that has been initialized
with the current style.  Please wrap it with a function simmilar to:

namespace Gtk {
class Style
{
  static Glib::RefPtr<Gtk::Style> 
  create()
  {
    GtkStyle* ret = gtk_style_new();
    return Glib::wrap(ret);
  }
};
}

Thanks.