+\wxheading{Note}
+
+You can know the size of the file you are getting using \helpref{wxStreamBase::GetSize()}{wxstreambasegetsize}.
+But there is a limitation: as HTTP servers aren't obliged to pass the size of
+the file, in some case, you will be returned 0xfffffff by GetSize(). In these
+cases, you should use the value returned by \helpref{wxInputStream::LastRead()}{wxinputstreamlastread}:
+this value will be 0 when the stream is finished.
+