public static extern int LZSeek(HLZFILE hFile, int lOffset, SeekOrigin iOrigin);
public static extern int LZCopy(HLZFILE hfSource, HLZFILE hfDest);
public static extern int LZRead(HLZFILE hFile, [Out] IntPtr lpBuffer, int cbRead);
public static extern void LZClose(HLZFILE hFile);