// Find out which MSW item before which we'll be inserting before
// wxMenuBarBase::Insert is called and GetMenu(pos) is the new menu.
// If IsAttached() is false this won't be used anyway
// Find out which MSW item before which we'll be inserting before
// wxMenuBarBase::Insert is called and GetMenu(pos) is the new menu.
// If IsAttached() is false this won't be used anyway