40b480c35d
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1792 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
95 lines
2.6 KiB
TeX
95 lines
2.6 KiB
TeX
% -----------------------------------------------------------------------------
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% wxStreamBase
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% -----------------------------------------------------------------------------
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\section{\class{wxStreamBase}}\label{wxstreambase}
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\wxheading{Derived from}
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None
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\wxheading{Include files}
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<wx/stream.h>
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\wxheading{See also}
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\helpref{wxStreamBuffer}{wxstreambuffer}
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% -----------------------------------------------------------------------------
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% Members
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% -----------------------------------------------------------------------------
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\latexignore{\rtfignore{\wxheading{Members}}}
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% -----------
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% ctor & dtor
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% -----------
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\membersection{wxStreamBase::wxStreamBase}
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\func{}{wxStreamBase}{\void}
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Creates a dummy stream object. It doesn't do anything.
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\membersection{wxStreamBase::\destruct{wxStreamBase}}
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\func{}{\destruct{wxStreamBase}}{\void}
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Destructor.
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\membersection{wxStreamBase::LastError}\label{wxstreambaselasterror}
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\constfunc{wxStreamError}{LastError}{\void}
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This function returns the last error.
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\twocolwidtha{5cm}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf wxStream_NOERROR}}{No error occured.}
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\twocolitem{{\bf wxStream_EOF}}{An End-Of-File occured.}
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\twocolitem{{\bf wxStream_WRITE_ERR}}{A generic error occured on the last write call.}
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\twocolitem{{\bf wxStream_READ_ERR}}{A generic error occured on the last read call.}
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\end{twocollist}
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\membersection{wxStreamBase::OnSysRead}\label{wxstreambaseonsysread}
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\func{size\_t}{OnSysRead}{\param{void*}{ buffer}, \param{size\_t}{ bufsize}}
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Internal function. It is called when the stream buffer needs a buffer of the
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specified size. It should return the size that was actually read.
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\membersection{wxStreamBase::OnSysSeek}
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\func{off\_t}{OnSysSeek}{\param{off\_t}{ pos}, \param{wxSeekMode}{ mode}}
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Internal function. It is called when the stream buffer needs to change the
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current position in the stream. See \helpref{wxStreamBuffer::Seek}{wxstreambufferseek}
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\membersection{wxStreamBase::OnSysTell}
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\constfunc{off\_t}{OnSysTell}{\void}
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Internal function. Is is called when the stream buffer needs to know the
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real position in the stream.
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\membersection{wxStreamBase::OnSysWrite}
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\func{size\_t}{OnSysWrite}{\param{void *}{buffer}, \param{size\_t}{ bufsize}}
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See \helpref{OnSysRead}{wxstreambaseonsysread}.
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\membersection{wxStreamBase::StreamSize}
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\constfunc{size\_t}{StreamSize}{\void}
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This function returns the size of the stream. For example, for a file it is the size of
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the file).
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\wxheading{Warning}
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There are streams which do not have size by definition, such as socket streams.
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In that cases, StreamSize returns an invalid size represented by
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\begin{verbatim}
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~(size_t)0
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\end{verbatim}
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