\func{off\_t}{OnSysSeek}{\param{off\_t}{ pos}, \param{wxSeekMode}{ mode}}
Internal function. It is called when the stream needs to change the
current position.
\func{off\_t}{OnSysSeek}{\param{off\_t}{ pos}, \param{wxSeekMode}{ mode}}
Internal function. It is called when the stream needs to change the
current position.