ArcObjects (C++) failing to add IMultiItem to custom toolbar

[Andreas_W_Paulsen]

I have a custom Toolbar. To this I want to add a Menu, MyMenu, with some items.
I have implemented IMultiItem to return the items:

class CMyItems :
 ...
 public IMultiItem
        ...
STDMETHOD(OnPopup)(LPDISPATCH Hook, long * ItemCount)
{
 m_ipApp = Hook;
 *ItemCount = 2;
 return S_OK;
}
STDMETHOD(get_ItemCaption)(long index, BSTR * itemName)
{
        if(index == 0)
  *itemName = ::SysAllocString(L"MyItem1");
 else if(index == 1)
  *itemName = ::SysAllocString(L"MyItem2");
        return S_OK;
}; 

I have a the following menu class:

class CMyMenu :
        ...
        public ICommand,
 public IMenuDef 
        ...
        STDMETHOD(get_ItemCount)(long * numItems)
 {
  *numItems = 1;
  return S_OK;
 }
 STDMETHOD(GetItemInfo)(long pos, IItemDef * itemDef)
 {
                // CLSID of CMyItems: 
  itemDef->put_ID(L"{2B5842E2-B14C-463E-9733-5BFF271C9BEF}");
  itemDef->put_SubType(1);
  return S_OK;
 }
};

I add this to my toolbar:

STDMETHOD(GetItemInfo)(long pos, IItemDef * itemDef)
{
     if (itemDef == NULL)
  return E_POINTER;

     if (pos == 0) {
  itemDef->put_Group (VARIANT_FALSE);
         // CLSID of CMyMenu 
         HRESULT hr = itemDef->put_ID(CComBSTR(L"{96A2B223-BF0D-410C-B22B-892FED3D9A15}"));
  if (FAILED (hr)) {
      return hr;
  }
      } 
}

When I start ArcScene; I see CMyMenu on my toolbar but it is empty!

[RichardWatson]

I haven't a clue but your code does not seem consistent:

itemDef->put_ID(L"{2B5842E2-B14C-463E-9733-5BFF271C9BEF}");

temDef->put_ID(CComBSTR(L"{96A2B223-BF0D-410C-B22B-892FED3D9A15}"));