\constfunc{wxFileOffset}{GetLength}{\void}
Returns the length of the stream in bytes. If the length cannot be determined
-(this is always the case for socket streams for example), returns
+(this is always the case for socket streams for example), returns
\texttt{wxInvalidOffset}.
\newsince{2.5.4}
See \helpref{OnSysRead}{wxstreambaseonsysread}.
-