X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/40b480c35de6bb004aa676e55f697b833156e402..3f93aa54a900d873977d8bdfcc9cededaaa0bee8:/docs/latex/wx/inputstr.tex diff --git a/docs/latex/wx/inputstr.tex b/docs/latex/wx/inputstr.tex index ec8d55353f..e830886624 100644 --- a/docs/latex/wx/inputstr.tex +++ b/docs/latex/wx/inputstr.tex @@ -3,6 +3,8 @@ % ----------------------------------------------------------------------------- \section{\class{wxInputStream}}\label{wxinputstream} +wxInputStream is an abstract base class which may not be used directly. + \wxheading{Derived from} \helpref{wxStreamBase}{wxstreambase} @@ -11,9 +13,7 @@ -\wxheading{See also} - -\helpref{wxStreamBuffer}{wxstreambuffer} +\latexignore{\rtfignore{\wxheading{Members}}} % ----------- % ctor & dtor @@ -24,11 +24,6 @@ Creates a dummy input stream. -\func{}{wxInputStream}{\param{wxStreamBuffer *}{sbuf}} - -Creates an input stream using the specified stream buffer \it{sbuf}. This -stream buffer can point to another stream. - \membersection{wxInputStream::\destruct{wxInputStream}} \func{}{\destruct{wxInputStream}}{\void} @@ -41,13 +36,13 @@ Destructor. Returns the first character in the input queue and removes it. -\membersection{wxInputStream::InputStreamBuffer} +\membersection{wxInputStream::Eof}\label{wxinputstreameof} -\func{wxStreamBuffer*}{InputStreamBuffer}{\void} +\constfunc{wxInputStream}{Eof}{\void} -Returns the stream buffer associated with the input stream. +Returns TRUE if the end of stream has been reached. -\membersection{wxInputStream::LastRead} +\membersection{wxInputStream::LastRead}\label{wxinputstreamlastread} \constfunc{size\_t}{LastRead}{\void} @@ -63,7 +58,7 @@ Returns the first character in the input queue without removing it. \func{wxInputStream\&}{Read}{\param{void *}{buffer}, \param{size\_t}{ size}} -Reads the specified amount of bytes and stores the data in \it{buffer}. +Reads the specified amount of bytes and stores the data in {\it buffer}. \wxheading{Warning} @@ -74,7 +69,7 @@ The buffer absolutely needs to have at least the specified size. This function returns a reference on the current object, so the user can test any states of the stream right away. -\func{wxInputStream\&}{Read}{\param{wxOutputStream\&}{ stream_out}} +\func{wxInputStream\&}{Read}{\param{wxOutputStream\&}{ stream\_out}} Reads data from the input queue and stores it in the specified output stream. The data is read until an error is raised by one of the two streams. @@ -96,3 +91,27 @@ Changes the stream current position. Returns the current stream position. +\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 +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. + +Be very careful about this call in connection with calling SeekI() on the same +stream. Any call to SeekI() will invalidate any previous call to this method +(otherwise you could SeekI() to one position, "unread" a few bytes there, SeekI() +to another position and data would be either lost or corrupted). + +\wxheading{Return value} + +Returns the amount of bytes saved in the Write-Back buffer. + +\func{bool}{Ungetch}{\param{char }{c}} + +This function acts like the previous one except that it takes only one +character: it is sometimes shorter to use than the generic function. +