]> git.saurik.com Git - wxWidgets.git/blame_incremental - docs/latex/wx/datostrm.tex
added wxWindow::IsVisible() method
[wxWidgets.git] / docs / latex / wx / datostrm.tex
... / ...
CommitLineData
1\section{\class{wxDataOutputStream}}\label{wxdataoutputstream}
2
3This class provides functions that write binary data types in a
4portable way. Data can be written in either big-endian or little-endian
5format, little-endian being the default on all architectures.
6
7If you want to write data to text files (or streams) use
8\helpref{wxTextOutputStream}{wxtextoutputstream} instead.
9
10The << operator is overloaded and you can use this class like a standard
11C++ iostream. See \helpref{wxDataInputStream}{wxdatainputstream} for its
12usage and caveats.
13
14See also \helpref{wxDataInputStream}{wxdatainputstream}.
15
16\wxheading{Derived from}
17
18None
19
20\wxheading{Include files}
21
22<wx/datstrm.h>
23
24\latexignore{\rtfignore{\wxheading{Members}}}
25
26\membersection{wxDataOutputStream::wxDataOutputStream}\label{wxdataoutputstreamctor}
27
28\func{}{wxDataOutputStream}{\param{wxOutputStream\&}{ stream}}
29
30\func{}{wxDataOutputStream}{\param{wxOutputStream\&}{ stream}, \param{wxMBConv\&}{ conv = wxMBConvUTF8}}
31
32Constructs a datastream object from an output stream. Only write methods will
33be available. The second form is only available in Unicode build of wxWidgets.
34
35\wxheading{Parameters}
36
37\docparam{stream}{The output stream.}
38
39\docparam{conv}{Charset conversion object object used to encoding Unicode
40strings before writing them to the stream
41in Unicode mode (see \helpref{wxDataOutputStream::WriteString}{wxdataoutputstreamwritestring}
42documentation for detailed description). Note that you must not destroy
43{\it conv} before you destroy this wxDataOutputStream instance! It is
44recommended to use default value (UTF-8).}
45
46\membersection{wxDataOutputStream::\destruct{wxDataOutputStream}}\label{wxdataoutputstreamdtor}
47
48\func{}{\destruct{wxDataOutputStream}}{\void}
49
50Destroys the wxDataOutputStream object.
51
52\membersection{wxDataOutputStream::BigEndianOrdered}\label{wxdataoutputstreambigendianorder}
53
54\func{void}{BigEndianOrdered}{\param{bool}{ be\_order}}
55
56If {\it be\_order} is true, all data will be written in big-endian
57order, e.g. for reading on a Sparc or from Java-Streams (which
58always use big-endian order), otherwise data will be written in
59little-endian order.
60
61\membersection{wxDataOutputStream::Write8}\label{wxdataoutputstreamwrite8}
62
63\func{void}{Write8}{{\param wxUint8 }{i8}}
64
65Writes the single byte {\it i8} to the stream.
66
67\func{void}{Write8}{\param{const wxUint8 *}{buffer}, \param{size\_t }{size}}
68
69Writes an array of bytes to the stream. The amount of bytes to write is
70specified with the {\it size} variable.
71
72\membersection{wxDataOutputStream::Write16}\label{wxdataoutputstreamwrite16}
73
74\func{void}{Write16}{{\param wxUint16 }{i16}}
75
76Writes the 16 bit unsigned integer {\it i16} to the stream.
77
78\func{void}{Write16}{\param{const wxUint16 *}{buffer}, \param{size\_t }{size}}
79
80Writes an array of 16 bit unsigned integer to the stream. The amount of
8116 bit unsigned integer to write is specified with the {\it size} variable.
82
83\membersection{wxDataOutputStream::Write32}\label{wxdataoutputstreamwrite32}
84
85\func{void}{Write32}{{\param wxUint32 }{i32}}
86
87Writes the 32 bit unsigned integer {\it i32} to the stream.
88
89\func{void}{Write32}{\param{const wxUint32 *}{buffer}, \param{size\_t }{size}}
90
91Writes an array of 32 bit unsigned integer to the stream. The amount of
9232 bit unsigned integer to write is specified with the {\it size} variable.
93
94\membersection{wxDataOutputStream::Write64}\label{wxdataoutputstreamwrite64}
95
96\func{void}{Write64}{{\param wxUint64 }{i64}}
97
98Writes the 64 bit unsigned integer {\it i64} to the stream.
99
100\func{void}{Write64}{\param{const wxUint64 *}{buffer}, \param{size\_t }{size}}
101
102Writes an array of 64 bit unsigned integer to the stream. The amount of
10364 bit unsigned integer to write is specified with the {\it size} variable.
104
105\membersection{wxDataOutputStream::WriteDouble}\label{wxdataoutputstreamwritedouble}
106
107\func{void}{WriteDouble}{{\param double }{f}}
108
109Writes the double {\it f} to the stream using the IEEE format.
110
111\func{void}{WriteDouble}{\param{const double *}{buffer}, \param{size\_t }{size}}
112
113Writes an array of double to the stream. The amount of double to write is
114specified with the {\it size} variable.
115
116\membersection{wxDataOutputStream::WriteString}\label{wxdataoutputstreamwritestring}
117
118\func{void}{WriteString}{{\param const wxString\&}{string}}
119
120Writes {\it string} to the stream. Actually, this method writes the size of
121the string before writing {\it string} itself.
122
123In ANSI build of wxWidgets, the string is written to the stream in exactly
124same way it is represented in memory. In Unicode build, however, the string
125is first converted to multibyte representation with {\it conv} object passed
126to stream's constructor (consequently, ANSI application can read data
127written by Unicode application, as long as they agree on encoding) and this
128representation is written to the stream. UTF-8 is used by default.
129