\twocolitem{\helpref{wxFileOutputStream}{wxfileoutputstream}}{File output stream class}
\twocolitem{\helpref{wxFFileInputStream}{wxffileinputstream}}{Another file input stream class}
\twocolitem{\helpref{wxFFileOutputStream}{wxffileoutputstream}}{Another file output stream class}
+\twocolitem{\helpref{wxTempFileOutputStream}{wxtempfileoutputstream}}{Stream to safely replace an existing file}
\twocolitem{\helpref{wxStringInputStream}{wxstringinputstream}}{String input stream class}
\twocolitem{\helpref{wxStringOutputStream}{wxstringoutputstream}}{String output stream class}
\twocolitem{\helpref{wxZlibInputStream}{wxzlibinputstream}}{Zlib (compression) input stream class}