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Gets the next items in the enumeration.
HRESULT Next( ULONG cItems, IFeedItemHistory ** ppItemHistory, ULONG *pcFetched);
[in] The number of history entries to get from the enumerator.
[out, size_is(cItems), length_is(*pcFetched)] Returns the next pcFetched history entries.
[in, out, unique] Returns the number of history entries retrieved.
S_OK
S_FALSE when the end of the collection is reached before cItems history entries are returned.
E_INVALIDARG
If there are fewer than cItems left in the collection, the remaining elements are returned. The number of elements actually retrieved is returned through pcFetched unless pcFetched is NULL.