1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Qt Toolkit - QTextStream Class</title><style type="text/css"><!--
h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }body { background: white; color: black; }
--></style>
</head><body bgcolor="#ffffff">
<table width="100%">
<tr><td><a href="index.html">
<img width="100" height="100" src="qtlogo.png"
alt="Home" border="0"><img width="100"
height="100" src="face.png" alt="Home" border="0">
</a><td valign=top><div align=right><img src="dochead.png" width="472" height="27"><br>
<a href="classes.html"><b>Classes</b></a>
-<a href="annotated.html">Annotated</a>
- <a href="hierarchy.html">Tree</a>
-<a href="functions.html">Functions</a>
-<a href="index.html">Home</a>
-<a href="topicals.html"><b>Structure</b></a>
</div>
</table>
<h1 align=center>QTextStream Class Reference</h1><br clear="all">
<p>
The QTextStream class provides basic functions for reading and writing text using a <a href="qiodevice.html">QIODevice</a>.
<a href="#details">More...</a>
<p>
<code>#include <<a href="qtextstream-h.html">qtextstream.h</a>></code>
<p>Inherited by <a href="qtextistream.html">QTextIStream</a> and <a href="qtextostream.html">QTextOStream</a>.
<p><a href="qtextstream-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li><div class="fn">enum<b>Encoding</b>{Locale, Latin1, Unicode, UnicodeNetworkOrder, UnicodeReverse, RawUnicode, UnicodeUTF8}</div>
<li><div class="fn">void<a href="#2c5ab2"><b>setEncoding</b></a>(Encoding)</div>
<li><div class="fn">void<a href="#db3d00"><b>setCodec</b></a>(QTextCodec*)</div>
<li><div class="fn"><a href="#681486"><b>QTextStream</b></a>()</div>
<li><div class="fn"><a href="#a42395"><b>QTextStream</b></a>(QIODevice*)</div>
<li><div class="fn"><a href="#a7f7b1"><b>QTextStream</b></a>(QString*, intmode)</div>
<li><div class="fn">QTextStream(QString&, intmode)<em>(obsolete)</em></div>
<li><div class="fn"><a href="#fe7aab"><b>QTextStream</b></a>(QByteArray, intmode)</div>
<li><div class="fn"><a href="#34a15b"><b>QTextStream</b></a>(FILE*, intmode)</div>
<li><div class="fn">virtual<a href="#28871d"><b>~QTextStream</b></a>()</div>
<li><div class="fn">QIODevice*<a href="#af52a3"><b>device</b></a>()const</div>
<li><div class="fn">void<a href="#879d54"><b>setDevice</b></a>(QIODevice*)</div>
<li><div class="fn">void<a href="#d4aebe"><b>unsetDevice</b></a>()</div>
<li><div class="fn">bool<a href="#e4d5a7"><b>atEnd</b></a>()const</div>
<li><div class="fn">booleof()const<em>(obsolete)</em></div>
<li><div class="fn">QTextStream&<a href="#ee78ff"><b>operator>></b></a>(QChar&)</div>
<li><div class="fn">QTextStream&<a href="#5684da"><b>operator>></b></a>(char&)</div>
<li><div class="fn">QTextStream&<a href="#648333"><b>operator>></b></a>(signedshort&)</div>
<li><div class="fn">QTextStream&<a href="#24dc0c"><b>operator>></b></a>(unsignedshort&)</div>
<li><div class="fn">QTextStream&<a href="#c392bb"><b>operator>></b></a>(signedint&)</div>
<li><div class="fn">QTextStream&<a href="#ab229c"><b>operator>></b></a>(unsignedint&)</div>
<li><div class="fn">QTextStream&<a href="#254947"><b>operator>></b></a>(signedlong&)</div>
<li><div class="fn">QTextStream&<a href="#98cfca"><b>operator>></b></a>(unsignedlong&)</div>
<li><div class="fn">QTextStream&<a href="#b8ed40"><b>operator>></b></a>(float&)</div>
<li><div class="fn">QTextStream&<a href="#9adf72"><b>operator>></b></a>(double&)</div>
<li><div class="fn">QTextStream&<a href="#1f4400"><b>operator>></b></a>(char*)</div>
<li><div class="fn">QTextStream&<a href="#ae2184"><b>operator>></b></a>(QString&)</div>
<li><div class="fn">QTextStream&<a href="#29b138"><b>operator>></b></a>(QCString&)</div>
<li><div class="fn">QTextStream&<a href="#fccfef"><b>operator<<</b></a>(QChar)</div>
<li><div class="fn">QTextStream&<a href="#189cef"><b>operator<<</b></a>(char)</div>
<li><div class="fn">QTextStream&<a href="#934a85"><b>operator<<</b></a>(signedshort)</div>
<li><div class="fn">QTextStream&<a href="#99d53b"><b>operator<<</b></a>(unsignedshort)</div>
<li><div class="fn">QTextStream&<a href="#426c0f"><b>operator<<</b></a>(signedint)</div>
<li><div class="fn">QTextStream&<a href="#fc83de"><b>operator<<</b></a>(unsignedint)</div>
<li><div class="fn">QTextStream&<a href="#0fab16"><b>operator<<</b></a>(signedlong)</div>
<li><div class="fn">QTextStream&<a href="#b01b83"><b>operator<<</b></a>(unsignedlong)</div>
<li><div class="fn">QTextStream&<a href="#84ccd9"><b>operator<<</b></a>(float)</div>
<li><div class="fn">QTextStream&<a href="#85bcbc"><b>operator<<</b></a>(double)</div>
<li><div class="fn">QTextStream&<a href="#da78df"><b>operator<<</b></a>(constchar*)</div>
<li><div class="fn">QTextStream&<a href="#129496"><b>operator<<</b></a>(constQString&)</div>
<li><div class="fn">QTextStream&<a href="#447aa9"><b>operator<<</b></a>(constQCString&)</div>
<li><div class="fn">QTextStream&<a href="#310459"><b>operator<<</b></a>(void*)</div>
<li><div class="fn">QTextStream&<a href="#5ae00e"><b>readRawBytes</b></a>(char*, uintlen)</div>
<li><div class="fn">QTextStream&<a href="#d777c3"><b>writeRawBytes</b></a>(constchar*, uintlen)</div>
<li><div class="fn">QString<a href="#ae4af4"><b>readLine</b></a>()</div>
<li><div class="fn">QString<a href="#4696a5"><b>read</b></a>()</div>
<li><div class="fn">void<a href="#2d500d"><b>skipWhiteSpace</b></a>()</div>
<li><div class="fn">enum{skipws=0x0001, left=0x0002, right=0x0004, internal=0x0008, bin=0x0010, oct=0x0020, dec=0x0040, hex=0x0080, showbase=0x0100, showpoint=0x0200, uppercase=0x0400, showpos=0x0800, scientific=0x1000, fixed=0x2000}</div>
<li><div class="fn">int<a href="#b8522e"><b>flags</b></a>()const</div>
<li><div class="fn">int<a href="#3a785c"><b>flags</b></a>(intf)</div>
<li><div class="fn">int<a href="#651443"><b>setf</b></a>(intbits)</div>
<li><div class="fn">int<a href="#febc0b"><b>setf</b></a>(intbits, intmask)</div>
<li><div class="fn">int<a href="#ed27a4"><b>unsetf</b></a>(intbits)</div>
<li><div class="fn">void<a href="#85b1c7"><b>reset</b></a>()</div>
<li><div class="fn">int<a href="#c45e81"><b>width</b></a>()const</div>
<li><div class="fn">int<a href="#a1bbbd"><b>width</b></a>(int)</div>
<li><div class="fn">int<a href="#c55685"><b>fill</b></a>()const</div>
<li><div class="fn">int<a href="#7e5360"><b>fill</b></a>(int)</div>
<li><div class="fn">int<a href="#b68e78"><b>precision</b></a>()const</div>
<li><div class="fn">int<a href="#72d2bc"><b>precision</b></a>(int)</div>
</ul>
<hr><h2><a name="details"></a>Detailed Description</h2>
The QTextStream class provides basic functions for reading and writing text using a <a href="qiodevice.html">QIODevice</a>.
<p>
The text stream class has a functional interface that is very
similar to that of the standard C++ iostream class. The difference
between iostream and QTextStream is that our stream operates on a
QIODevice, which is easily subclassed, while iostream operates on
FILE * pointers, which can not be subclassed.
<p>Qt provides several global functions similar to the ones in iostream:
<ul>
<li> <code>bin</code> sets the QTextStream to read/write binary numbers
<li> <code>oct</code> sets the QTextStream to read/write octal numbers
<li> <code>dec</code> sets the QTextStream to read/write decimal numbers
<li> <code>hex</code> sets the QTextStream to read/write hexadecimal numbers
<li> <code>endl</code> forces a line break
<li> <code>flush</code> forces the QIODevice to flush any buffered data
<li> <code>ws</code> eats any available white space (on input)
<li> <code>reset</code> resets the QTextStream to its default mode (see <a href="#85b1c7">reset</a>()).
</ul><p><b>Warning:</b> By default, QTextStream will automatically detect whether
integers in the stream are in decimal, octal, hexadecimal or binary
format when reading from the stream. In particular, a leading '0'
signifies octal, ie. the sequence "0100" will be interpreted as
64.
<p>The QTextStream class reads and writes text and it is not
appropriate for dealing with binary data (but <a href="qdatastream.html">QDataStream</a> is).
<p>By default output of Unicode text (ie. <a href="qstring.html">QString</a>) is done using the
local 8-bit encoding. This can be changed using the <a href="#2c5ab2">setEncoding</a>()
method. For input, the QTextStream will auto-detect standard
Unicode "byte order marked" text files, but otherwise the local
8-bit encoding is used.
<p>See also <a href="qdatastream.html">QDataStream</a>.
<p>Examples:
<a href="grapher-grapher-cpp.html#QTextStream">grapher/grapher.cpp</a>
<hr><h2>Member Function Documentation</h2>
<h3 class="fn"><a name="681486"></a>QTextStream::QTextStream()</h3>
<p>Constructs a data stream that has no IO device.
<h3 class="fn"><a name="fe7aab"></a>QTextStream::QTextStream(<a href="qbytearray.html">QByteArray</a>a, intmode)</h3>
<p>Constructs a text stream that operates on a byte array through an
internal <a href="qbuffer.html">QBuffer</a> device.
<p>Example:
<pre> <a href="qbytearray.html">QByteArray</a> array;
<a href="qtextstream.html">QTextStream</a> ts( array, IO_WriteOnly );
ts << "pi = " << 3.14 << '\0'; // array == "pi = 3.14"
</pre>
<p>Writing data to the text stream will modify the contents of the array.
The array will be expanded when data is written beyond the end of the
string.
<p>Same example, using a QBuffer:
<pre> <a href="qbytearray.html">QByteArray</a> array;
<a href="qbuffer.html">QBuffer</a> buf( array );
buf.<a href="qbuffer.html#53d514">open</a>( IO_WriteOnly );
<a href="qtextstream.html">QTextStream</a> ts( &buf );
ts << "pi = " << 3.14 << '\0'; // array == "pi = 3.14"
buf.<a href="qbuffer.html#bcf8f3">close</a>();
</pre>
<h3 class="fn"><a name="a42395"></a>QTextStream::QTextStream(<a href="qiodevice.html">QIODevice</a>*iod)</h3>
<p>Constructs a text stream that uses the IO device <em>iod.</em>
<h3 class="fn"><a name="2da4c5"></a>QTextStream::QTextStream(<a href="qstring.html">QString</a>&str, intfilemode)</h3>
<p><b>This function is obsolete.</b> It is provided to keep old source working, and will probably be removed in a future version of Qt. We strongly advise against using it in new code.<p>
<p>This constructor is equivalent to the constructor taking a <a href="qstring.html">QString</a>*
parameter.
<h3 class="fn"><a name="a7f7b1"></a>QTextStream::QTextStream(<a href="qstring.html">QString</a>*str, intfilemode)</h3>
<p>Constructs a text stream that operates on a Unicode <a href="qstring.html">QString</a> through an
internal device.
<p>If you set an encoding or codec with <a href="#2c5ab2">setEncoding</a>() or <a href="#db3d00">setCodec</a>(), this
setting is ignored for text streams that operate on QString.
<p>Example:
<pre> <a href="qstring.html">QString</a> str;
<a href="qtextstream.html">QTextStream</a> ts( &str, IO_WriteOnly );
ts << "pi = " << 3.14; // str == "pi = 3.14"
</pre>
<p>Writing data to the text stream will modify the contents of the string.
The string will be expanded when data is written beyond the end of the
string. Note that the string will not be truncated:
<pre> <a href="qstring.html">QString</a> str = "pi = 3.14";
<a href="qtextstream.html">QTextStream</a> ts( &str, IO_WriteOnly );
ts << "2+2 = " << 2+2; // str == "2+2 = 414"
</pre>
<p>Note that since QString is Unicode, you should not use <a href="#5ae00e">readRawBytes</a>()
or <a href="#d777c3">writeRawBytes</a>() on such a stream.
<h3 class="fn"><a name="34a15b"></a>QTextStream::QTextStream(FILE*fh, intmode)</h3>
<p>Constructs a text stream that operates on an existing file handle <em>fh</em>
through an internal <a href="qfile.html">QFile</a> device.
<p>Example:
<pre> <a href="qtextstream.html">QTextStream</a> cout( stdout, IO_WriteOnly );
<a href="qtextstream.html">QTextStream</a> cin ( stdin, IO_ReadOnly );
<a href="qtextstream.html">QTextStream</a> cerr( stderr, IO_WriteOnly );
</pre>
<h3 class="fn"><a name="28871d"></a>QTextStream::~QTextStream() <code>[virtual]</code></h3>
<p>Destructs the text stream.
<p>The destructor does not affect the current IO device.
<h3 class="fn">bool<a name="e4d5a7"></a>QTextStream::atEnd()const</h3>
<p>Returns TRUE if the IO device has reached the end position (end of
stream or file) or if there is no IO device set.
<p>Returns FALSE if the current position of the read/write head of the IO
device is somewhere before the end position.
<p>See also <a href="qiodevice.html#d51a01">QIODevice::atEnd</a>().
<h3 class="fn"><a href="qiodevice.html">QIODevice</a>*<a name="af52a3"></a>QTextStream::device()const</h3>
<p>Returns the IO device currently set.
<p>See also <a href="#879d54">setDevice</a>() and <a href="#d4aebe">unsetDevice</a>().
<h3 class="fn">bool<a name="bb145b"></a>QTextStream::eof()const</h3>
<p><b>This function is obsolete.</b> It is provided to keep old source working, and will probably be removed in a future version of Qt. We strongly advise against using it in new code.<p>
<p>This function has been renamed to <a href="#e4d5a7">atEnd</a>().
<p>See also <a href="qiodevice.html#d51a01">QIODevice::atEnd</a>().
<p>Examples:
<a href="grapher-grapher-cpp.html#eof">grapher/grapher.cpp</a>
<h3 class="fn">int<a name="c55685"></a>QTextStream::fill()const</h3>
<p>Returns the fill character. The default value is ' ' (space).
<h3 class="fn">int<a name="7e5360"></a>QTextStream::fill(intf)</h3>
<p>Sets the fill character to <em>f.</em> Returns the previous fill character.
<h3 class="fn">int<a name="b8522e"></a>QTextStream::flags()const</h3>
<p>Returns the current stream flags. The default value is 0.
<p>The meaning of the flags are:
<ul>
<li> <em>skipws</em> - Not currently used - whitespace always skipped
<li> <em>left</em> - Numeric fields are left-aligned
<li> <em>right</em> - Not currently used (by default numerics are right aligned)
<li> <em>internal</em> - Put any padding spaces between +/- and value
<li> <em>bin</em> - Output <em>and</em> input only in binary
<li> <em>oct</em> - Output <em>and</em> input only in octal
<li> <em>dec</em> - Output <em>and</em> input only in decimal
<li> <em>hex</em> - Output <em>and</em> input only in hexadecimal
<li> <em>showbase</em> - Annotate numeric outputs with 0b, 0, or 0x if in
<em>bin, oct,</em> or <em>hex</em> format
<li> <em>showpoint</em> - Not currently used
<li> <em>uppercase</em> - Use 0B and 0X rather than 0b and 0x
<li> <em>showpos</em> - Show + for positive numeric values
<li> <em>scientific</em> - Use scientific notation for floating point values
<li> <em>fixed</em> - Use fixed-point notation for floating point values
</ul>
<p>Note that unless <em>bin, oct, dec,</em> or <em>hex</em> is set, the input base is
octal if the value starts with 0, hexadecimal if it starts with 0x, binary
if the value starts with 0b, and decimal otherwise.
<p>See also <a href="#651443">setf</a>() and <a href="#ed27a4">unsetf</a>().
<h3 class="fn">int<a name="3a785c"></a>QTextStream::flags(intf)</h3>
<p>Sets the stream flags to <em>f.</em>
Returns the previous stream flags.
<p>See also <a href="#651443">setf</a>(), <a href="#ed27a4">unsetf</a>() and flags().
<h3 class="fn">QTextStream&<a name="fccfef"></a>QTextStream::operator<<(<a href="qchar.html">QChar</a>c)</h3>
<p>Writes a <code>char</code> to the stream and returns a reference to the stream.
<p>The character <em>c</em> is assumed to be Latin1 encoded independent of the Encoding set
for the QTextStream.
<h3 class="fn">QTextStream&<a name="189cef"></a>QTextStream::operator<<(charc)</h3>
<p>Writes a <code>char</code> to the stream and returns a reference to the stream.
<h3 class="fn">QTextStream&<a name="447aa9"></a>QTextStream::operator<<(const<a href="qcstring.html">QCString</a>&s)</h3>
<p>Writes <em>s</em> to the stream and returns a reference to the stream.
<p>The string <em>s</em> is assumed to be Latin1 encoded independent of the Encoding set
for the QTextStream.
<h3 class="fn">QTextStream&<a name="129496"></a>QTextStream::operator<<(const<a href="qstring.html">QString</a>&s)</h3>
<p>Writes <em>s</em> to the stream and returns a reference to the stream.
<h3 class="fn">QTextStream&<a name="da78df"></a>QTextStream::operator<<(constchar*s)</h3>
<p>Writes a string to the stream and returns a reference to the stream.
<p>The string <em>s</em> is assumed to be Latin1 encoded independent of the Encoding set
for the QTextStream.
<h3 class="fn">QTextStream&<a name="85bcbc"></a>QTextStream::operator<<(doublef)</h3>
<p>Writes a <code>double</code> to the stream and returns a reference to the stream.
<h3 class="fn">QTextStream&<a name="84ccd9"></a>QTextStream::operator<<(floatf)</h3>
<p>Writes a <code>float</code> to the stream and returns a reference to the stream.
<h3 class="fn">QTextStream&<a name="426c0f"></a>QTextStream::operator<<(signedinti)</h3>
<p>Writes an <code>int</code> to the stream and returns a reference to
the stream.
<h3 class="fn">QTextStream&<a name="0fab16"></a>QTextStream::operator<<(signedlongi)</h3>
<p>Writes a <code>long int</code> to the stream and returns a reference to
the stream.
<h3 class="fn">QTextStream&<a name="934a85"></a>QTextStream::operator<<(signedshorti)</h3>
<p>Writes a <code>short</code> integer to the stream and returns a reference to
the stream.
<h3 class="fn">QTextStream&<a name="fc83de"></a>QTextStream::operator<<(unsignedinti)</h3>
<p>Writes an <code>unsigned int</code> to the stream and returns a reference to
the stream.
<h3 class="fn">QTextStream&<a name="b01b83"></a>QTextStream::operator<<(unsignedlongi)</h3>
<p>Writes an <code>unsigned long int</code> to the stream and returns a reference to
the stream.
<h3 class="fn">QTextStream&<a name="99d53b"></a>QTextStream::operator<<(unsignedshorti)</h3>
<p>Writes an <code>unsigned short</code> integer to the stream and returns a reference
to the stream.
<h3 class="fn">QTextStream&<a name="310459"></a>QTextStream::operator<<(void*ptr)</h3>
<p>Writes a pointer to the stream and returns a reference to the stream.
<p>The <em>ptr</em> is output as an unsigned long hexadecimal integer.
<h3 class="fn">QTextStream&<a name="ee78ff"></a>QTextStream::operator>>(<a href="qchar.html">QChar</a>&c)</h3>
<p>Reads a <code>char</code> from the stream and returns a reference to the stream.
Note that whitespace is <em>not</em> skipped.
<h3 class="fn">QTextStream&<a name="29b138"></a>QTextStream::operator>>(<a href="qcstring.html">QCString</a>&str)</h3>
<p>Reads a word from the stream and returns a reference to the stream.
<h3 class="fn">QTextStream&<a name="ae2184"></a>QTextStream::operator>>(<a href="qstring.html">QString</a>&str)</h3>
<p>Reads a word from the stream and returns a reference to the stream.
<h3 class="fn">QTextStream&<a name="5684da"></a>QTextStream::operator>>(char&c)</h3>
<p>Reads a <code>char</code> from the stream and returns a reference to the stream.
Note that whitespace is skipped.
<h3 class="fn">QTextStream&<a name="1f4400"></a>QTextStream::operator>>(char*s)</h3>
<p>Reads a word from the stream and returns a reference to the stream.
<h3 class="fn">QTextStream&<a name="9adf72"></a>QTextStream::operator>>(double&f)</h3>
<p>Reads a <code>double</code> from the stream and returns a reference to the stream.
See <a href="#3a785c">flags</a>() for an explanation of expected input format.
<h3 class="fn">QTextStream&<a name="b8ed40"></a>QTextStream::operator>>(float&f)</h3>
<p>Reads a <code>float</code> from the stream and returns a reference to the stream.
See <a href="#3a785c">flags</a>() for an explanation of expected input format.
<h3 class="fn">QTextStream&<a name="c392bb"></a>QTextStream::operator>>(signedint&i)</h3>
<p>Reads a signed <code>int</code> from the stream and returns a reference to the
stream. See <a href="#3a785c">flags</a>() for an explanation of expected input format.
<h3 class="fn">QTextStream&<a name="254947"></a>QTextStream::operator>>(signedlong&i)</h3>
<p>Reads a signed <code>long</code> int from the stream and returns a reference to the
stream. See <a href="#3a785c">flags</a>() for an explanation of expected input format.
<h3 class="fn">QTextStream&<a name="648333"></a>QTextStream::operator>>(signedshort&i)</h3>
<p>Reads a signed <code>short</code> integer from the stream and returns a reference to
the stream. See <a href="#3a785c">flags</a>() for an explanation of expected input format.
<h3 class="fn">QTextStream&<a name="ab229c"></a>QTextStream::operator>>(unsignedint&i)</h3>
<p>Reads an unsigned <code>int</code> from the stream and returns a reference to the
stream. See <a href="#3a785c">flags</a>() for an explanation of expected input format.
<h3 class="fn">QTextStream&<a name="98cfca"></a>QTextStream::operator>>(unsignedlong&i)</h3>
<p>Reads an unsigned <code>long</code> int from the stream and returns a reference to the
stream. See <a href="#3a785c">flags</a>() for an explanation of expected input format.
<h3 class="fn">QTextStream&<a name="24dc0c"></a>QTextStream::operator>>(unsignedshort&i)</h3>
<p>Reads an unsigned <code>short</code> integer from the stream and returns a reference to
the stream. See <a href="#3a785c">flags</a>() for an explanation of expected input format.
<h3 class="fn">int<a name="b68e78"></a>QTextStream::precision()const</h3>
<p>Returns the precision. The default value is 6.
<h3 class="fn">int<a name="72d2bc"></a>QTextStream::precision(intp)</h3>
<p>Sets the precision to <em>p.</em> Returns the previous precision setting.
<h3 class="fn"><a href="qstring.html">QString</a><a name="4696a5"></a>QTextStream::read()</h3>
<p>Reads the entire stream and returns a string containing the text.
<p>See also <a href="qiodevice.html#0b6051">QIODevice::readLine</a>().
<h3 class="fn"><a href="qstring.html">QString</a><a name="ae4af4"></a>QTextStream::readLine()</h3>
<p>Reads a line from the stream and returns a string containing the text.
<p>The returned string does not contain any trailing newline or carriage
return. Note that this is different from <a href="qiodevice.html#0b6051">QIODevice::readLine</a>(), which
does not strip the newline at the end of the line.
<p>On EOF you will get a <a href="qstring.html">QString</a> that is null. On reading an empty line the
returned QString is empty but not null.
<p>See also <a href="qiodevice.html#0b6051">QIODevice::readLine</a>().
<h3 class="fn">QTextStream&<a name="5ae00e"></a>QTextStream::readRawBytes(char*s, uintlen)</h3>
<p>Reads <em>len</em> bytes from the stream into <em>e</em> s and returns a reference to
the stream.
<p>The buffer <em>s</em> must be preallocated.
<p>Note that no encoding is done by this function.<p><b>Warning:</b> The behaviour of this function is undefined unless the
stream's encoding is set to Unicode or Latin1.
<p>See also <a href="qiodevice.html#c12e6e">QIODevice::readBlock</a>().
<h3 class="fn">void<a name="85b1c7"></a>QTextStream::reset()</h3>
<p>Resets the text stream.
<p><ul>
<li> All flags are set to 0.
<li> The field width is set to 0.
<li> The fill character is set to ' ' (space).
<li> The precision is set to 6.
</ul>
<p>See also <a href="#651443">setf</a>(), <a href="#a1bbbd">width</a>(), <a href="#7e5360">fill</a>() and <a href="#72d2bc">precision</a>().
<h3 class="fn">void<a name="db3d00"></a>QTextStream::setCodec(<a href="qtextcodec.html">QTextCodec</a>*codec)</h3>
<p>Sets the codec for this stream to <em>codec.</em> Will not try to
autodetect Unicode.
<p>Note that this function should be called before any data is read
to/written from the stream.
<p>See also <a href="#2c5ab2">setEncoding</a>().
<h3 class="fn">void<a name="879d54"></a>QTextStream::setDevice(<a href="qiodevice.html">QIODevice</a>*iod)</h3>
<p>Sets the IO device to <em>iod.</em>
<p>See also <a href="#af52a3">device</a>() and <a href="#d4aebe">unsetDevice</a>().
<h3 class="fn">void<a name="2c5ab2"></a>QTextStream::setEncoding(Encodinge)</h3>
<p>Sets the encoding of this stream to <em>e,</em> where <em>e</em> is one of:
<ul>
<li> <code>Locale</code> Using local file format (Latin1 if locale is not
set), but autodetecting Unicode(utf16) on input.
<li> <code>Unicode</code> Using Unicode(utf16) for input and output. Output
will be written in the order most efficient for the current platform
(i.e. the order used internally in <a href="qstring.html">QString</a>).
<li> <code>UnicodeUTF8</code> Using Unicode(utf8) for input and output. If you use it
for input it will autodetect utf16 and use it instead of utf8.
<li> <code>Latin1</code> ISO-8859-1. Will not autodetect utf16.
<li> <code>UnicodeNetworkOrder</code> Using network order Unicode(utf16) for
input and output. Useful when reading Unicode data that does not
start with the byte order marker.
<li> <code>UnicodeReverse</code> Using reverse network order Unicode(utf16)
for input and output. Useful when reading Unicode data that does not
start with the byte order marker, or writing data that should be
read by buggy Windows applications.
<li> <code>RawUnicode</code> Like Unicode, but does not write the byte order
marker, nor does it autodetect the byte order. Only useful when
writing to non-persistent storage used by a single process.
</ul>
<p><code>Locale</code> and all Unicode encodings, except <code>RawUnicode,</code> will look at
the first two bytes in a input stream to determine the byte order. The
initial byte order marker will be stripped off before data is read.
<p>Note that this function should be called before any data is read
to/written from the stream.
<p>See also <a href="#db3d00">setCodec</a>().
<h3 class="fn">int<a name="651443"></a>QTextStream::setf(intbits)</h3>
<p>Sets the stream flag bits <em>bits.</em>
Returns the previous stream flags.
<p>Equivalent to <code><a href="#3a785c">flags</a>( flags() | bits )</code>.
<p>See also setf() and <a href="#ed27a4">unsetf</a>().
<h3 class="fn">int<a name="febc0b"></a>QTextStream::setf(intbits, intmask)</h3>
<p>Sets the stream flag bits <em>bits</em> with a bit mask <em>mask.</em>
Returns the previous stream flags.
<p>Equivalent to <code><a href="#3a785c">flags</a>( (flags() & ~mask) | (bits & mask) )</code>.
<p>See also <a href="#651443">setf</a>() and <a href="#ed27a4">unsetf</a>().
<h3 class="fn">void<a name="2d500d"></a>QTextStream::skipWhiteSpace()</h3>
<p>Positions the read pointer at the first non-whitespace character.
<h3 class="fn">void<a name="d4aebe"></a>QTextStream::unsetDevice()</h3>
<p>Unsets the IO device. Equivalent to <a href="#879d54">setDevice</a>( 0 ).
<p>See also <a href="#af52a3">device</a>() and <a href="#879d54">setDevice</a>().
<h3 class="fn">int<a name="ed27a4"></a>QTextStream::unsetf(intbits)</h3>
<p>Clears the stream flag bits <em>bits.</em>
Returns the previous stream flags.
<p>Equivalent to <code><a href="#3a785c">flags</a>( flags() & ~mask )</code>.
<p>See also <a href="#651443">setf</a>().
<h3 class="fn">int<a name="c45e81"></a>QTextStream::width()const</h3>
<p>Returns the field width. The default value is 0.
<h3 class="fn">int<a name="a1bbbd"></a>QTextStream::width(intw)</h3>
<p>Sets the field width to <em>w.</em> Returns the previous field width.
<h3 class="fn">QTextStream&<a name="d777c3"></a>QTextStream::writeRawBytes(constchar*s, uintlen)</h3>
<p>Writes the <em>len</em> bytes from <em>s</em> to the stream and returns a reference to
the stream.
<p>Note that no encoding is done by this function.
<p>See also <a href="qiodevice.html#924d2f">QIODevice::writeBlock</a>().
<hr><p>
Search the documentation, FAQ, qt-interest archive and more (uses
<a href="http://www.trolltech.com">www.trolltech.com</a>):<br>
<form method=post action="http://www.trolltech.com/search.cgi">
<input type=hidden name="version" value="2.3.2"><nobr>
<input size="50" name="search"><input type=submit value="Search">
</nobr></form><hr><p>
This file is part of the <a href="index.html">Qt toolkit</a>,
copyright © 1995-2001
<a href="http://www.trolltech.com">Trolltech</a>, all rights reserved.<p><address><hr><div align="center">
<table width="100%" cellspacing="0" border="0"><tr>
<td>Copyright 2001 Trolltech<td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align="right"><div align="right">Qt version 2.3.2</div>
</table></div></address></body></html>
|
