define _HPUX_SOURCE under HP-UX, otherwise many things are not defined in standard...

[wxWidgets.git] / docs / latex / wx / fileostr.tex

% -----------------------------------------------------------------------------
% wxFileOutputStream
% -----------------------------------------------------------------------------
\section{\class{wxFileOutputStream}}\label{wxfileoutputstream}

This class represents data written to a file. There are actually
two such groups of classes: this one is based on \helpref{wxFile}{wxfile} 
whereas \helpref{wxFFileInputStream}{wxffileinputstream} is based in
the \helpref{wxFFile}{wxffile} class.

Note that \helpref{wxFile}{wxfile} and \helpref{wxFFile}{wxffile} differ
in one aspect, namely when to report that the end of the file has been
reached. This is documented in \helpref{wxFile::Eof}{wxfileeof} and 
\helpref{wxFFile::Eof}{wxffileeof} and the behaviour of the stream
classes reflects this difference, i.e. wxFileInputStream will report
wxSTREAM\_EOF after having read the last byte whereas wxFFileInputStream
will report wxSTREAM\_EOF after trying to read {\it past} the last byte.
Related to EOF behavior, note that \helpref{SeekO()}{wxoutputstreamseeko} 
can seek beyond the end of the stream (file) and will thus not return 
{\it wxInvalidOffset} for that.

\wxheading{Derived from}

\helpref{wxOutputStream}{wxoutputstream}

\wxheading{Include files}

<wx/wfstream.h>

\wxheading{See also}

\helpref{wxBufferedOutputStream}{wxbufferedoutputstream}, \helpref{wxFileInputStream}{wxfileinputstream}, \helpref{wxFFileInputStream}{wxffileinputstream}

% ----------
% Members
% ----------
\latexignore{\rtfignore{\wxheading{Members}}}

\membersection{wxFileOutputStream::wxFileOutputStream}\label{wxfileoutputstreamctor}

\func{}{wxFileOutputStream}{\param{const wxString\&}{ ofileName}}

Creates a new file with {\it ofilename} name and initializes the stream in
write-only mode. 

\func{}{wxFileOutputStream}{\param{wxFile\&}{ file}}

Initializes a file stream in write-only mode using the file I/O object {\it file}.

\func{}{wxFileOutputStream}{\param{int}{ fd}}

Initializes a file stream in write-only mode using the file descriptor {\it fd}.

\membersection{wxFileOutputStream::\destruct{wxFileOutputStream}}\label{wxfileoutputstreamdtor}

\func{}{\destruct{wxFileOutputStream}}{\void}

Destructor.

\membersection{wxFileOutputStream::Ok}\label{wxfileoutputstreamok}

\constfunc{bool}{Ok}{\void}

Returns true if the stream is initialized and ready.