public static extern Error GetData(DataSeqHandle dataSeq, ref IntPtr pData);
public static extern void Free(DataSeqHandle dataSeq);
public static extern Error SetAt(DataSeqHandle dataSeq, UInt32 i, double v);
public static extern Error GetSize(DataSeqHandle dataSeq, ref UInt32 size);
public static extern Error PopBack(DataSeqHandle dataSeq, ref double v);
public static extern Error PushBack(DataSeqHandle dataSeq, double v);
public static extern Error Create(ref DataSeqHandle dataSeq, UInt32 size);