]> git.saurik.com Git - wxWidgets.git/blobdiff - docs/latex/wx/strmbase.tex
Moved desktop margin options to a more sensible place
[wxWidgets.git] / docs / latex / wx / strmbase.tex
index 23d8b3defaf1058cf48c27fbfcb9fbe498c4516d..57f20bf29153274bd94ee8f9bf3ff5705b3c52f0 100644 (file)
@@ -14,6 +14,10 @@ None
 
 <wx/stream.h>
 
 
 <wx/stream.h>
 
+\wxheading{Library}
+
+\helpref{wxBase}{librarieslist}
+
 \wxheading{See also}
 
 \helpref{wxStreamBuffer}{wxstreambuffer}
 \wxheading{See also}
 
 \helpref{wxStreamBuffer}{wxstreambuffer}
@@ -27,27 +31,31 @@ None
 % ctor & dtor
 % -----------
 
 % ctor & dtor
 % -----------
 
+
 \membersection{wxStreamBase::wxStreamBase}\label{wxstreambasector}
 
 \func{}{wxStreamBase}{\void}
 
 Creates a dummy stream object. It doesn't do anything.
 
 \membersection{wxStreamBase::wxStreamBase}\label{wxstreambasector}
 
 \func{}{wxStreamBase}{\void}
 
 Creates a dummy stream object. It doesn't do anything.
 
+
 \membersection{wxStreamBase::\destruct{wxStreamBase}}\label{wxstreambasedtor}
 
 \func{}{\destruct{wxStreamBase}}{\void}
 
 Destructor.
 
 \membersection{wxStreamBase::\destruct{wxStreamBase}}\label{wxstreambasedtor}
 
 \func{}{\destruct{wxStreamBase}}{\void}
 
 Destructor.
 
-\membersection{wxStreamBase::IsOk}\label{wxstreambaseisok}
 
 
-\constfunc{wxStreamError}{IsOk}{\void}
+\membersection{wxStreamBase::GetLength}\label{wxstreambasegetlength}
 
 
-Returns true if no error occurred on the stream.
+\constfunc{wxFileOffset}{GetLength}{\void}
 
 
-\wxheading{See also}
+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}
 
 
-\helpref{GetLastError}{wxstreambasegetlasterror}
 
 \membersection{wxStreamBase::GetLastError}\label{wxstreambasegetlasterror}
 
 
 \membersection{wxStreamBase::GetLastError}\label{wxstreambasegetlasterror}
 
@@ -63,6 +71,40 @@ This function returns the last error.
 \twocolitem{{\bf wxSTREAM\_READ\_ERROR}}{A generic error occurred on the last read call.}
 \end{twocollist}
 
 \twocolitem{{\bf wxSTREAM\_READ\_ERROR}}{A generic error occurred on the last read call.}
 \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{virtual 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}}
@@ -70,6 +112,7 @@ This function returns the last error.
 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.
 
 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.
 
+
 \membersection{wxStreamBase::OnSysSeek}\label{wxstreambaseonsysseek}
 
 \func{off\_t}{OnSysSeek}{\param{off\_t}{ pos}, \param{wxSeekMode}{ mode}}
 \membersection{wxStreamBase::OnSysSeek}\label{wxstreambaseonsysseek}
 
 \func{off\_t}{OnSysSeek}{\param{off\_t}{ pos}, \param{wxSeekMode}{ mode}}
@@ -77,6 +120,7 @@ specified size. It should return the size that was actually read.
 Internal function. It is called when the stream needs to change the
 current position.
 
 Internal function. It is called when the stream needs to change the
 current position.
 
+
 \membersection{wxStreamBase::OnSysTell}\label{wxstreambaseonsystell}
 
 \constfunc{off\_t}{OnSysTell}{\void}
 \membersection{wxStreamBase::OnSysTell}\label{wxstreambaseonsystell}
 
 \constfunc{off\_t}{OnSysTell}{\void}
@@ -84,21 +128,10 @@ current position.
 Internal function. Is is called when the stream needs to know the
 real position.
 
 Internal function. Is is called when the stream needs to know the
 real position.
 
+
 \membersection{wxStreamBase::OnSysWrite}\label{wxstreambaseonsyswrite}
 
 \membersection{wxStreamBase::OnSysWrite}\label{wxstreambaseonsyswrite}
 
-\func{size\_t}{OnSysWrite}{\param{void *}{buffer}, \param{size\_t}{ bufsize}}
+\func{size\_t}{OnSysWrite}{\param{const void *}{buffer}, \param{size\_t}{ bufsize}}
 
 See \helpref{OnSysRead}{wxstreambaseonsysread}.
 
 
 See \helpref{OnSysRead}{wxstreambaseonsysread}.
 
-\membersection{wxStreamBase::GetSize}\label{wxstreambasegetsize}
-
-\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 $0$ so you should always test its return value.
-