On menu item again

[Turingmachine]

somebody please help me


here is the code

CString OnGetClick()
{
  CMenu* submenu=menu.GetSubMenu(0);
  ASSERT(submenu);
  ASSERT(::ismenu(submenu->GetSafeHMenu()); // This line throws exception 
  CString str;
  submenu->GetMenuString(1,str,NF_BYPOSITION);
  return str;
}