Note
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Retrieves a specified number of segments in the enumeration sequence.
HRESULT Next ( 
   ULONG         celt, 
   IDiaSegment** rgelt,
   ULONG*        pceltFetched
);
Parameters
- celt 
 [in] The number of segments in the enumerator to be retrieved.
- rgelt 
 [out] An array that is to be filled in with the desired IDiaSegment objects that represent the segments.
- pceltFetched 
 [out] Returns the number of segments in the fetched enumerator.
Return Value
If successful, returns S_OK. Returns S_FALSE if there are no more segments. Otherwise, returns an error code.