| Appends the given item to collection and
        assigns it the specified key value. You can later use the key value to index the item in
        collection. Syntax:
          index = HandyCollection.Add(key, item) IDL definition:
          [id(1), helpstring("Adds item to the collection")]HRESULT Add([in] VARIANT varKey,[in] VARIANT varItem,[out,retval] VARIANT* pvarPlace);
 Parameters:
          key - the value assigned as key of that item in collection and later
          used for indexing. Should be unique in collection.item - Item being added to collection.
 index - 1-based index of the item in collection.
 Remarks:If key parameter is already used in collection the item is not added and index has a
        value of 0. S_FALSE is returned in HRESULT. Use another key in that case. Applies to:
          HandyCollection object |