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

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

diff --git a/docs/latex/wx/strmbase.tex b/docs/latex/wx/strmbase.tex
index ff108b3b9355083191f54ac8ebba468e40e23227..8c495730c309376c74b6282da247072d8f6e68c8 100644 (file)
--- a/docs/latex/wx/strmbase.tex
+++ b/docs/latex/wx/strmbase.tex
@@ -3,6 +3,9 @@
 % -----------------------------------------------------------------------------
 \section{\class{wxStreamBase}}\label{wxstreambase}
 
 % -----------------------------------------------------------------------------
 \section{\class{wxStreamBase}}\label{wxstreambase}
 

+This class is the base class of most stream related classes in wxWidgets. It must
+not be used directly.
+

 \wxheading{Derived from}
 
 None
 \wxheading{Derived from}
 
 None


@@ -24,71 +27,107 @@ None
 % ctor & dtor
 % -----------
 
 % ctor & dtor
 % -----------
 

-\membersection{wxStreamBase::wxStreamBase}
+
+\membersection{wxStreamBase::wxStreamBase}\label{wxstreambasector}

 
 \func{}{wxStreamBase}{\void}
 
 Creates a dummy stream object. It doesn't do anything.
 
 
 \func{}{wxStreamBase}{\void}
 
 Creates a dummy stream object. It doesn't do anything.
 

-\membersection{wxStreamBase::\destruct{wxStreamBase}}
+
+\membersection{wxStreamBase::\destruct{wxStreamBase}}\label{wxstreambasedtor}

 
 \func{}{\destruct{wxStreamBase}}{\void}
 
 Destructor.
 
 
 \func{}{\destruct{wxStreamBase}}{\void}
 
 Destructor.
 

-\membersection{wxStreamBase::LastError}\label{wxstreambaselasterror}

 
 

-\constfunc{wxStreamError}{LastError}{\void}
+\membersection{wxStreamBase::GetLength}\label{wxstreambasegetlength}
+
+\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 
+\texttt{wxInvalidOffset}.
+
+\newsince{2.5.4}
+
+
+\membersection{wxStreamBase::GetLastError}\label{wxstreambasegetlasterror}
+
+\constfunc{wxStreamError}{GetLastError}{\void}

 
 This function returns the last error.
 
 This function returns the last error.

+

 \twocolwidtha{5cm}
 \begin{twocollist}\itemsep=0pt
 \twocolwidtha{5cm}
 \begin{twocollist}\itemsep=0pt

-\twocolitem{{\bf wxStream\_NOERROR}}{No error occured.}
-\twocolitem{{\bf wxStream\_EOF}}{An End-Of-File occured.}
-\twocolitem{{\bf wxStream\_WRITE\_ERR}}{A generic error occured on the last write call.}
-\twocolitem{{\bf wxStream\_READ\_ERR}}{A generic error occured on the last read call.}
+\twocolitem{{\bf wxSTREAM\_NO\_ERROR}}{No error occurred.}
+\twocolitem{{\bf wxSTREAM\_EOF}}{An End-Of-File occurred.}
+\twocolitem{{\bf wxSTREAM\_WRITE\_ERROR}}{A generic error occurred on the last write call.}
+\twocolitem{{\bf wxSTREAM\_READ\_ERROR}}{A generic error occurred on the last read call.}

 \end{twocollist}
 
 \end{twocollist}
 

+
+\membersection{wxStreamBase::GetSize}\label{wxstreambasegetsize}
+
+\constfunc{size\_t}{GetSize}{\void}
+
+\helpref{GetLength}{wxstreambasegetlength}
+
+This function returns the size of the stream. For example, for a file it is the
+size of the file.
+
+\wxheading{Warning}
+
+There are streams which do not have size by definition, such as socket streams.
+In that cases, GetSize returns $0$ so you should always test its return value.
+
+
+\membersection{wxStreamBase::IsOk}\label{wxstreambaseisok}
+
+\constfunc{bool}{IsOk}{\void}
+
+Returns true if no error occurred on the stream.
+
+\wxheading{See also}
+
+\helpref{GetLastError}{wxstreambasegetlasterror}
+
+
+\membersection{wxStreamBase::IsSeekable}\label{wxstreambaseisseekable}
+
+\constfunc{bool}{IsSeekable}{\void}
+
+Returns true if the streams supports seeking to arbitrary offsets.
+
+

 \membersection{wxStreamBase::OnSysRead}\label{wxstreambaseonsysread}
 
 \func{size\_t}{OnSysRead}{\param{void*}{ buffer}, \param{size\_t}{ bufsize}}
 
 \membersection{wxStreamBase::OnSysRead}\label{wxstreambaseonsysread}
 
 \func{size\_t}{OnSysRead}{\param{void*}{ buffer}, \param{size\_t}{ bufsize}}
 

-Internal function. It is called when the stream buffer needs a buffer of the
+Internal function. It is called when the stream wants to read data of the

 specified size. It should return the size that was actually read.
 
 specified size. It should return the size that was actually read.
 

-\membersection{wxStreamBase::OnSysSeek}
+
+\membersection{wxStreamBase::OnSysSeek}\label{wxstreambaseonsysseek}

 
 \func{off\_t}{OnSysSeek}{\param{off\_t}{ pos}, \param{wxSeekMode}{ mode}}
 
 
 \func{off\_t}{OnSysSeek}{\param{off\_t}{ pos}, \param{wxSeekMode}{ mode}}
 

-Internal function. It is called when the stream buffer needs to change the
-current position in the stream. See \helpref{wxStreamBuffer::Seek}{wxstreambufferseek}
+Internal function. It is called when the stream needs to change the
+current position.

 
 

-\membersection{wxStreamBase::OnSysTell}
+
+\membersection{wxStreamBase::OnSysTell}\label{wxstreambaseonsystell}

 
 \constfunc{off\_t}{OnSysTell}{\void}
 
 
 \constfunc{off\_t}{OnSysTell}{\void}
 

-Internal function. Is is called when the stream buffer needs to know the
-real position in the stream.
+Internal function. Is is called when the stream needs to know the
+real position.
+

 
 

-\membersection{wxStreamBase::OnSysWrite}
+\membersection{wxStreamBase::OnSysWrite}\label{wxstreambaseonsyswrite}

 
 \func{size\_t}{OnSysWrite}{\param{void *}{buffer}, \param{size\_t}{ bufsize}}
 
 See \helpref{OnSysRead}{wxstreambaseonsysread}.
 
 
 \func{size\_t}{OnSysWrite}{\param{void *}{buffer}, \param{size\_t}{ bufsize}}
 
 See \helpref{OnSysRead}{wxstreambaseonsysread}.
 

-\membersection{wxStreamBase::GetSize}
-
-\constfunc{size\_t}{GetSize}{\void}
-
-This function returns the size of the stream. For example, for a file it is the size of
-the file).
-
-\wxheading{Warning}
-
-There are streams which do not have size by definition, such as socket streams.
-In that cases, GetSize returns an invalid size represented by
-
-\begin{verbatim}
-~(size_t)0
-\end{verbatim}
-