public static extern bool SetFilePointerEx(SafeFileHandle hFile, long liDistanceToMove, IntPtr lpNewFilePointer, Win32NativeFileMoveMethod dwMoveMethod);
private static extern int SetFilePointer([In] SafeFileHandle hFile, [In] int lDistanceToMove, [Out] out int lpDistanceToMoveHigh, [In] Win32NativeFileMoveMethod dwMoveMethod);
public static extern bool SetFilePointerEx(SafeFileHandle hFile, long liDistanceToMove, IntPtr lpNewFilePointer, Win32NativeFileMoveMethod dwMoveMethod);