X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f3845e889c7ccfe03d034a0aa79b4f4d19fbcb06..6bb29886cbf4057a9a50073eb948bc9aec904756:/docs/latex/wx/datostrm.tex diff --git a/docs/latex/wx/datostrm.tex b/docs/latex/wx/datostrm.tex index 1ae9c15a48..c2601381aa 100644 --- a/docs/latex/wx/datostrm.tex +++ b/docs/latex/wx/datostrm.tex @@ -1,7 +1,7 @@ \section{\class{wxDataOutputStream}}\label{wxdataoutputstream} This class provides functions that write binary data types in a -portable way. Data can be written in either big-endian or litte-endian +portable way. Data can be written in either big-endian or little-endian format, little-endian being the default on all architectures. If you want to write data to text files (or streams) use @@ -17,62 +17,117 @@ See also \helpref{wxDataInputStream}{wxdatainputstream}. None +\wxheading{Include files} + + + +\wxheading{Library} + +\helpref{wxBase}{librarieslist} + \latexignore{\rtfignore{\wxheading{Members}}} -\membersection{wxDataOutputStream::wxDataOutputStream}\label{wxdataoutputstreamconstr} +\membersection{wxDataOutputStream::wxDataOutputStream}\label{wxdataoutputstreamctor} \func{}{wxDataOutputStream}{\param{wxOutputStream\&}{ stream}} +\func{}{wxDataOutputStream}{\param{wxOutputStream\&}{ stream}, \param{const wxMBConv\&}{ conv = wxConvAuto()}} + Constructs a datastream object from an output stream. Only write methods will -be available. +be available. The second form is only available in Unicode build of wxWidgets. \wxheading{Parameters} \docparam{stream}{The output stream.} -\membersection{wxDataOutputStream::\destruct{wxDataOutputStream}} +\docparam{conv}{Charset conversion object object used to encoding Unicode +strings before writing them to the stream +in Unicode mode (see \helpref{wxDataOutputStream::WriteString}{wxdataoutputstreamwritestring} +documentation for detailed description). Note that you must not destroy +{\it conv} before you destroy this wxDataOutputStream instance! It is +recommended to use default value (UTF-8).} + +\membersection{wxDataOutputStream::\destruct{wxDataOutputStream}}\label{wxdataoutputstreamdtor} \func{}{\destruct{wxDataOutputStream}}{\void} Destroys the wxDataOutputStream object. -\membersection{wxDataOutputStream::BigEndianOrdered} +\membersection{wxDataOutputStream::BigEndianOrdered}\label{wxdataoutputstreambigendianorder} \func{void}{BigEndianOrdered}{\param{bool}{ be\_order}} -If {\it be\_order} is TRUE, all data will be written in big-endian +If {\it be\_order} is true, all data will be written in big-endian order, e.g. for reading on a Sparc or from Java-Streams (which always use big-endian order), otherwise data will be written in little-endian order. -\membersection{wxDataOutputStream::Write8} +\membersection{wxDataOutputStream::Write8}\label{wxdataoutputstreamwrite8} \func{void}{Write8}{{\param wxUint8 }{i8}} Writes the single byte {\it i8} to the stream. -\membersection{wxDataOutputStream::Write16} +\func{void}{Write8}{\param{const wxUint8 *}{buffer}, \param{size\_t }{size}} + +Writes an array of bytes to the stream. The amount of bytes to write is +specified with the {\it size} variable. + +\membersection{wxDataOutputStream::Write16}\label{wxdataoutputstreamwrite16} \func{void}{Write16}{{\param wxUint16 }{i16}} -Writes the 16 bit integer {\it i16} to the stream. +Writes the 16 bit unsigned integer {\it i16} to the stream. + +\func{void}{Write16}{\param{const wxUint16 *}{buffer}, \param{size\_t }{size}} + +Writes an array of 16 bit unsigned integer to the stream. The amount of +16 bit unsigned integer to write is specified with the {\it size} variable. -\membersection{wxDataOutputStream::Write32} +\membersection{wxDataOutputStream::Write32}\label{wxdataoutputstreamwrite32} \func{void}{Write32}{{\param wxUint32 }{i32}} -Writes the 32 bit integer {\it i32} to the stream. +Writes the 32 bit unsigned integer {\it i32} to the stream. -\membersection{wxDataOutputStream::WriteDouble} +\func{void}{Write32}{\param{const wxUint32 *}{buffer}, \param{size\_t }{size}} + +Writes an array of 32 bit unsigned integer to the stream. The amount of +32 bit unsigned integer to write is specified with the {\it size} variable. + +\membersection{wxDataOutputStream::Write64}\label{wxdataoutputstreamwrite64} + +\func{void}{Write64}{{\param wxUint64 }{i64}} + +Writes the 64 bit unsigned integer {\it i64} to the stream. + +\func{void}{Write64}{\param{const wxUint64 *}{buffer}, \param{size\_t }{size}} + +Writes an array of 64 bit unsigned integer to the stream. The amount of +64 bit unsigned integer to write is specified with the {\it size} variable. + +\membersection{wxDataOutputStream::WriteDouble}\label{wxdataoutputstreamwritedouble} \func{void}{WriteDouble}{{\param double }{f}} Writes the double {\it f} to the stream using the IEEE format. -\membersection{wxDataOutputStream::WriteString} +\func{void}{WriteDouble}{\param{const double *}{buffer}, \param{size\_t }{size}} + +Writes an array of double to the stream. The amount of double to write is +specified with the {\it size} variable. -\func{void}{WriteString}{{\param const wxString\& }{string}} +\membersection{wxDataOutputStream::WriteString}\label{wxdataoutputstreamwritestring} + +\func{void}{WriteString}{{\param const wxString\&}{string}} Writes {\it string} to the stream. Actually, this method writes the size of the string before writing {\it string} itself. +In ANSI build of wxWidgets, the string is written to the stream in exactly +same way it is represented in memory. In Unicode build, however, the string +is first converted to multibyte representation with {\it conv} object passed +to stream's constructor (consequently, ANSI application can read data +written by Unicode application, as long as they agree on encoding) and this +representation is written to the stream. UTF-8 is used by default. +