X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/605d715ddd84ddc3e78423e3f3ae5c27c8ff4d43..4a82116e2ee3060ecdb8a451403280f54be93372:/docs/latex/wx/inputstr.tex diff --git a/docs/latex/wx/inputstr.tex b/docs/latex/wx/inputstr.tex index 1df6d394dc..eb2c5f2249 100644 --- a/docs/latex/wx/inputstr.tex +++ b/docs/latex/wx/inputstr.tex @@ -13,6 +13,8 @@ wxInputStream is an abstract base class which may not be used directly. +\latexignore{\rtfignore{\wxheading{Members}}} + % ----------- % ctor & dtor % ----------- @@ -32,7 +34,26 @@ Destructor. \func{char}{GetC}{\void} -Returns the first character in the input queue and removes it. +Returns the first character in the input queue and removes it, +blocking until it appears if necessary. + +\wxheading{Note} + +If EOF, return value is undefined and LastRead() will return 0 and not 1. + +\membersection{wxInputStream::Eof}\label{wxinputstreameof} + +\constfunc{wxInputStream}{Eof}{\void} + +Returns true if the end of stream has been reached. + +\wxheading{Note} + +For some streams Eof() will not return true until an +attempt has been made to read past the end of the stream. +\helpref{LastRead()}{wxinputstreamlastread} +should be called after each read to check that +a non-zero number of bytes have been read. \membersection{wxInputStream::LastRead}\label{wxinputstreamlastread} @@ -46,6 +67,12 @@ Returns the last number of bytes read. Returns the first character in the input queue without removing it. +\wxheading{Note} + +Blocks until something appears in the stream if necessary, if nothing +ever does (i.e. EOF) LastRead() will return 0 (and the return value is +undefined), otherwise LastRead() returns 1. + \membersection{wxInputStream::Read} \func{wxInputStream\&}{Read}{\param{void *}{buffer}, \param{size\_t}{ size}} @@ -71,24 +98,34 @@ The data is read until an error is raised by one of the two streams. This function returns a reference on the current object, so the user can test any states of the stream right away. -\membersection{wxInputStream::SeekI} +\membersection{wxInputStream::SeekI}\label{wxinputstreamseeki} \func{off\_t}{SeekI}{\param{off\_t}{ pos}, \param{wxSeekMode}{ mode = wxFromStart}} Changes the stream current position. +\wxheading{Parameters} + +\docparam{pos}{Offset to seek to.} + +\docparam{mode}{One of {\bf wxFromStart}, {\bf wxFromEnd}, {\bf wxFromCurrent}.} + +\wxheading{Return value} + +The new stream position or wxInvalidOffset on error. + \membersection{wxInputStream::TellI} \constfunc{off\_t}{TellI}{\void} Returns the current stream position. -\membersection{wxInputStream::Ungetch}\label{wxinputstream_ungetch} +\membersection{wxInputStream::Ungetch}\label{wxinputstreamungetch} \func{size\_t}{Ungetch}{\param{const char*}{ buffer}, \param{size\_t}{ size}} This function is only useful in {\it read} mode. It is the manager of the "Write-Back" -buffer. This buffer acts like a temporary buffer where datas which has to be +buffer. This buffer acts like a temporary buffer where data which has to be read during the next read IO call are put. This is useful when you get a big block of data which you didn't want to read: you can replace them at the top of the input queue by this way.