// You can also get the last number of bytes REALLY put into the buffer.
size_t really_read = in_stream.LastRead();
-// Ok, moves to the beginning of the stream. SeekI returns the last position
+// Ok, moves to the beginning of the stream. SeekI returns the last position
// in the stream counted from the beginning.
off_t old_position = in_stream.SeekI(0, wxFromBeginning);