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
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/tools/tqtextstream.cpp:56 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>TQTextStream Class</title>
<style type="text/css"><!--
fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }
body { background: #ffffff; color: black; }
--></style>
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr bgcolor="#E5E5E5">
<td valign=center>
<a href="index.html">
<font color="#004faf">Home</font></a>
| <a href="classes.html">
<font color="#004faf">All Classes</font></a>
| <a href="mainclasses.html">
<font color="#004faf">Main Classes</font></a>
| <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
| <a href="groups.html">
<font color="#004faf">Grouped Classes</font></a>
| <a href="functions.html">
<font color="#004faf">Functions</font></a>
</td>
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQTextStream Class Reference</h1>
<p>The TQTextStream class provides basic functions for reading
and writing text using a TQIODevice.
<a href="#details">More...</a>
<p>All the functions in this class are <a href="threads.html#reentrant">reentrant</a> when TQt is built with thread support.</p>
<p><tt>#include <<a href="tqtextstream-h.html">tqtextstream.h</a>></tt>
<p>Inherited by <a href="tqtextistream.html">TQTextIStream</a> and <a href="tqtextostream.html">TQTextOStream</a>.
<p><a href="tqtextstream-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn>enum <a href="#Encoding-enum"><b>Encoding</b></a> { Locale, Latin1, Unicode, UnicodeNetworkOrder, UnicodeReverse, RawUnicode, UnicodeUTF8 }</li>
<li class=fn>void <a href="#setEncoding"><b>setEncoding</b></a> ( Encoding e )</li>
<li class=fn>void <a href="#setCodec"><b>setCodec</b></a> ( TQTextCodec * codec )</li>
<li class=fn>TQTextCodec * <a href="#codec"><b>codec</b></a> ()</li>
<li class=fn><a href="#TQTextStream"><b>TQTextStream</b></a> ()</li>
<li class=fn><a href="#TQTextStream-2"><b>TQTextStream</b></a> ( TQIODevice * iod )</li>
<li class=fn><a href="#TQTextStream-3"><b>TQTextStream</b></a> ( TQString * str, int filemode )</li>
<li class=fn>TQTextStream ( TQString & str, int filemode ) <em>(obsolete)</em></li>
<li class=fn><a href="#TQTextStream-5"><b>TQTextStream</b></a> ( TQByteArray a, int mode )</li>
<li class=fn><a href="#TQTextStream-6"><b>TQTextStream</b></a> ( FILE * fh, int mode )</li>
<li class=fn>virtual <a href="#~TQTextStream"><b>~TQTextStream</b></a> ()</li>
<li class=fn>TQIODevice * <a href="#device"><b>device</b></a> () const</li>
<li class=fn>void <a href="#setDevice"><b>setDevice</b></a> ( TQIODevice * iod )</li>
<li class=fn>void <a href="#unsetDevice"><b>unsetDevice</b></a> ()</li>
<li class=fn>bool <a href="#atEnd"><b>atEnd</b></a> () const</li>
<li class=fn>bool eof () const <em>(obsolete)</em></li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt"><b>operator>></b></a> ( TQChar & c )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-2"><b>operator>></b></a> ( char & c )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-3"><b>operator>></b></a> ( signed short & i )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-4"><b>operator>></b></a> ( unsigned short & i )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-5"><b>operator>></b></a> ( signed int & i )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-6"><b>operator>></b></a> ( unsigned int & i )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-7"><b>operator>></b></a> ( signed long & i )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-8"><b>operator>></b></a> ( unsigned long & i )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-9"><b>operator>></b></a> ( float & f )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-a"><b>operator>></b></a> ( double & f )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-b"><b>operator>></b></a> ( char * s )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-c"><b>operator>></b></a> ( TQString & str )</li>
<li class=fn>TQTextStream & <a href="#operator-gt-gt-d"><b>operator>></b></a> ( TQCString & str )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt"><b>operator<<</b></a> ( TQChar c )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-2"><b>operator<<</b></a> ( char c )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-3"><b>operator<<</b></a> ( signed short i )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-4"><b>operator<<</b></a> ( unsigned short i )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-5"><b>operator<<</b></a> ( signed int i )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-6"><b>operator<<</b></a> ( unsigned int i )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-7"><b>operator<<</b></a> ( signed long i )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-8"><b>operator<<</b></a> ( unsigned long i )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-9"><b>operator<<</b></a> ( float f )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-a"><b>operator<<</b></a> ( double f )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-b"><b>operator<<</b></a> ( const char * s )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-c"><b>operator<<</b></a> ( const TQString & s )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-d"><b>operator<<</b></a> ( const TQCString & s )</li>
<li class=fn>TQTextStream & <a href="#operator-lt-lt-e"><b>operator<<</b></a> ( void * ptr )</li>
<li class=fn>TQTextStream & <a href="#readRawBytes"><b>readRawBytes</b></a> ( char * s, uint len )</li>
<li class=fn>TQTextStream & <a href="#writeRawBytes"><b>writeRawBytes</b></a> ( const char * s, uint len )</li>
<li class=fn>TQString <a href="#readLine"><b>readLine</b></a> ()</li>
<li class=fn>TQString <a href="#read"><b>read</b></a> ()</li>
<li class=fn>void <a href="#skipWhiteSpace"><b>skipWhiteSpace</b></a> ()</li>
<li class=fn>int <a href="#flags"><b>flags</b></a> () const</li>
<li class=fn>int <a href="#flags-2"><b>flags</b></a> ( int f )</li>
<li class=fn>int <a href="#setf"><b>setf</b></a> ( int bits )</li>
<li class=fn>int <a href="#setf-2"><b>setf</b></a> ( int bits, int mask )</li>
<li class=fn>int <a href="#unsetf"><b>unsetf</b></a> ( int bits )</li>
<li class=fn>void <a href="#reset"><b>reset</b></a> ()</li>
<li class=fn>int <a href="#width"><b>width</b></a> () const</li>
<li class=fn>int <a href="#width-2"><b>width</b></a> ( int w )</li>
<li class=fn>int <a href="#fill"><b>fill</b></a> () const</li>
<li class=fn>int <a href="#fill-2"><b>fill</b></a> ( int f )</li>
<li class=fn>int <a href="#precision"><b>precision</b></a> () const</li>
<li class=fn>int <a href="#precision-2"><b>precision</b></a> ( int p )</li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
The TQTextStream class provides basic functions for reading
and writing text using a <a href="tqiodevice.html">TQIODevice</a>.
<p>
<p> The text stream class has a functional interface that is very
similar to that of the standard C++ iostream class.
<p> TQt provides several global functions similar to the ones in iostream:
<center><table cellpadding="4" cellspacing="2" border="0">
<tr bgcolor="#a2c511"> <th valign="top">Function <th valign="top">Meaning
<tr bgcolor="#f0f0f0"> <td valign="top">bin <td valign="top">sets the TQTextStream to read/write binary numbers
<tr bgcolor="#d0d0d0"> <td valign="top">oct <td valign="top">sets the TQTextStream to read/write octal numbers
<tr bgcolor="#f0f0f0"> <td valign="top">dec <td valign="top">sets the TQTextStream to read/write decimal numbers
<tr bgcolor="#d0d0d0"> <td valign="top">hex <td valign="top">sets the TQTextStream to read/write hexadecimal numbers
<tr bgcolor="#f0f0f0"> <td valign="top">endl <td valign="top">forces a line break
<tr bgcolor="#d0d0d0"> <td valign="top">flush <td valign="top">forces the TQIODevice to flush any buffered data
<tr bgcolor="#f0f0f0"> <td valign="top">ws <td valign="top">eats any available whitespace (on input)
<tr bgcolor="#d0d0d0"> <td valign="top">reset <td valign="top">resets the TQTextStream to its default mode (see <a href="#reset">reset</a>())
<tr bgcolor="#f0f0f0"> <td valign="top">qSetW(int) <td valign="top">sets the <a href="#width">field width</a>
to the given argument
<tr bgcolor="#d0d0d0"> <td valign="top">qSetFill(int) <td valign="top">sets the <a href="#fill">fill character</a> to the given argument
<tr bgcolor="#f0f0f0"> <td valign="top">qSetPrecision(int) <td valign="top">sets the <a href="#precision">precision</a> to the given argument
</table></center>
<p> <b>Warning:</b> By default TQTextStream 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, i.e. the sequence "0100" will be
interpreted as 64.
<p> The TQTextStream class reads and writes text; it is not appropriate
for dealing with binary data (but <a href="tqdatastream.html">TQDataStream</a> is).
<p> By default, output of Unicode text (i.e. <a href="tqstring.html">TQString</a>) is done using
the local 8-bit encoding. This can be changed using the
<a href="#setEncoding">setEncoding</a>() method. For input, the TQTextStream will auto-detect
standard Unicode "byte order marked" text files; otherwise the
local 8-bit encoding is used.
<p> The <a href="tqiodevice.html">TQIODevice</a> is set in the constructor, or later using
<a href="#setDevice">setDevice</a>(). If the end of the input is reached <a href="#atEnd">atEnd</a>() returns
TRUE. Data can be read into variables of the appropriate type
using the <a href="#operator-gt-gt">operator>></a>() overloads, or read in its entirety into a
single string using <a href="#read">read</a>(), or read a line at a time using
<a href="#readLine">readLine</a>(). Whitespace can be skipped over using <a href="#skipWhiteSpace">skipWhiteSpace</a>().
You can set flags for the stream using <a href="#flags">flags</a>() or <a href="#setf">setf</a>(). The
stream also supports <a href="#width">width</a>(), <a href="#precision">precision</a>() and <a href="#fill">fill</a>(); use <a href="#reset">reset</a>()
to reset the defaults.
<p> <p>See also <a href="tqdatastream.html">TQDataStream</a>, <a href="io.html">Input/Output and Networking</a>, and <a href="text.html">Text Related Classes</a>.
<hr><h2>Member Type Documentation</h2>
<h3 class=fn><a name="Encoding-enum"></a>TQTextStream::Encoding</h3>
<ul>
<li><tt>TQTextStream::Locale</tt>
<li><tt>TQTextStream::Latin1</tt>
<li><tt>TQTextStream::Unicode</tt>
<li><tt>TQTextStream::UnicodeNetworkOrder</tt>
<li><tt>TQTextStream::UnicodeReverse</tt>
<li><tt>TQTextStream::RawUnicode</tt>
<li><tt>TQTextStream::UnicodeUTF8</tt>
</ul><p> See <a href="#setEncoding">setEncoding</a>() for an explanation of the encodings.
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="TQTextStream"></a>TQTextStream::TQTextStream ()
</h3>
Constructs a data stream that has no IO device.
<h3 class=fn><a name="TQTextStream-2"></a>TQTextStream::TQTextStream ( <a href="tqiodevice.html">TQIODevice</a> * iod )
</h3>
Constructs a text stream that uses the IO device <em>iod</em>.
<h3 class=fn><a name="TQTextStream-3"></a>TQTextStream::TQTextStream ( <a href="tqstring.html">TQString</a> * str, int filemode )
</h3>
Constructs a text stream that operates on the Unicode <a href="tqstring.html">TQString</a>, <em>str</em>, through an internal device. The <em>filemode</em> argument is
passed to the device's open() function; see <a href="tqiodevice.html#mode">TQIODevice::mode</a>().
<p> If you set an encoding or codec with <a href="#setEncoding">setEncoding</a>() or <a href="#setCodec">setCodec</a>(),
this setting is ignored for text streams that operate on TQString.
<p> Example:
<pre>
<a href="tqstring.html">TQString</a> str;
TQTextStream ts( &str, <a href="tqfile.html#open">IO_WriteOnly</a> );
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="tqstring.html">TQString</a> str = "pi = 3.14";
TQTextStream ts( &str, IO_WriteOnly );
ts << "2+2 = " << 2+2; // str == "2+2 = 414"
</pre>
<p> Note that because TQString is Unicode, you should not use
<a href="#readRawBytes">readRawBytes</a>() or <a href="#writeRawBytes">writeRawBytes</a>() on such a stream.
<h3 class=fn><a name="TQTextStream-4"></a>TQTextStream::TQTextStream ( <a href="tqstring.html">TQString</a> & str, int filemode )
</h3> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
<p> This constructor is equivalent to the constructor taking a <a href="tqstring.html">TQString</a>*
parameter.
<h3 class=fn><a name="TQTextStream-5"></a>TQTextStream::TQTextStream ( <a href="tqbytearray.html">TQByteArray</a> a, int mode )
</h3>
Constructs a text stream that operates on the byte array, <em>a</em>,
through an internal <a href="tqbuffer.html">TQBuffer</a> device. The <em>mode</em> argument is passed
to the device's open() function; see <a href="tqiodevice.html#mode">TQIODevice::mode</a>().
<p> Example:
<pre>
<a href="tqbytearray.html">TQByteArray</a> array;
TQTextStream ts( array, <a href="tqfile.html#open">IO_WriteOnly</a> );
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 TQBuffer:
<pre>
<a href="tqbytearray.html">TQByteArray</a> array;
<a href="tqbuffer.html">TQBuffer</a> buf( array );
buf.<a href="tqiodevice.html#open">open</a>( IO_WriteOnly );
TQTextStream ts( &buf );
ts << "pi = " << 3.14 << '\0'; // array == "pi = 3.14"
buf.<a href="tqiodevice.html#close">close</a>();
</pre>
<h3 class=fn><a name="TQTextStream-6"></a>TQTextStream::TQTextStream ( FILE * fh, int mode )
</h3>
Constructs a text stream that operates on an existing file handle
<em>fh</em> through an internal <a href="tqfile.html">TQFile</a> device. The <em>mode</em> argument is
passed to the device's open() function; see <a href="tqiodevice.html#mode">TQIODevice::mode</a>().
<p> Note that if you create a TQTextStream <tt>cout</tt> or another name that
is also used for another variable of a different type, some
linkers may confuse the two variables, which will often cause
crashes.
<h3 class=fn><a name="~TQTextStream"></a>TQTextStream::~TQTextStream ()<tt> [virtual]</tt>
</h3>
Destroys the text stream.
<p> The destructor does not affect the current IO device.
<h3 class=fn>bool <a name="atEnd"></a>TQTextStream::atEnd () const
</h3>
<p> Returns TRUE if the IO device has reached the end position (end of
the stream or file) or if there is no IO device set; otherwise
returns FALSE.
<p> <p>See also <a href="tqiodevice.html#atEnd">TQIODevice::atEnd</a>().
<p>Examples: <a href="addressbook-example.html#x601">addressbook/centralwidget.cpp</a> and <a href="grapher-nsplugin-example.html#x2774">grapher/grapher.cpp</a>.
<h3 class=fn><a href="tqtextcodec.html">TQTextCodec</a> * <a name="codec"></a>TQTextStream::codec ()
</h3>
Returns the codec actually used for this stream.
<p> If Unicode is automatically detected in input, a codec with <a href="tqtextcodec.html#name">name()</a> "ISO-10646-UCS-2" is returned.
<p> <p>See also <a href="#setCodec">setCodec</a>().
<h3 class=fn><a href="tqiodevice.html">TQIODevice</a> * <a name="device"></a>TQTextStream::device () const
</h3>
<p> Returns the IO device currently set.
<p> <p>See also <a href="#setDevice">setDevice</a>() and <a href="#unsetDevice">unsetDevice</a>().
<h3 class=fn>bool <a name="eof"></a>TQTextStream::eof () const
</h3>
<p> <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
<p> This function has been renamed to <a href="#atEnd">atEnd</a>().
<p> <p>See also <a href="tqiodevice.html#atEnd">TQIODevice::atEnd</a>().
<p>Example: <a href="tutorial2-07.html#x2592">chart/chartform_files.cpp</a>.
<h3 class=fn>int <a name="fill"></a>TQTextStream::fill () const
</h3>
<p> Returns the fill character. The default value is ' ' (space).
<h3 class=fn>int <a name="fill-2"></a>TQTextStream::fill ( int f )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Sets the fill character to <em>f</em>. Returns the previous fill character.
<h3 class=fn>int <a name="flags"></a>TQTextStream::flags () const
</h3>
<p> Returns the current stream flags. The default value is 0.
<p> <center><table cellpadding="4" cellspacing="2" border="0">
<tr bgcolor="#a2c511"> <th valign="top">Flag <th valign="top">Meaning
<tr bgcolor="#f0f0f0"> <td valign="top"><tt>skipws</tt> <td valign="top">Not currently used; whitespace always skipped
<tr bgcolor="#d0d0d0"> <td valign="top"><tt>left</tt> <td valign="top">Numeric fields are left-aligned
<tr bgcolor="#f0f0f0"> <td valign="top"><tt>right</tt>
<td valign="top">Not currently used (by default, numerics are right-aligned)
<tr bgcolor="#d0d0d0"> <td valign="top"><tt>internal</tt> <td valign="top">Puts any padding spaces between +/- and value
<tr bgcolor="#f0f0f0"> <td valign="top"><tt>bin</tt> <td valign="top">Output <em>and</em> input only in binary
<tr bgcolor="#d0d0d0"> <td valign="top"><tt>oct</tt> <td valign="top">Output <em>and</em> input only in octal
<tr bgcolor="#f0f0f0"> <td valign="top"><tt>dec</tt> <td valign="top">Output <em>and</em> input only in decimal
<tr bgcolor="#d0d0d0"> <td valign="top"><tt>hex</tt> <td valign="top">Output <em>and</em> input only in hexadecimal
<tr bgcolor="#f0f0f0"> <td valign="top"><tt>showbase</tt>
<td valign="top">Annotates numeric outputs with 0b, 0, or 0x if in <tt>bin</tt>,
<tt>oct</tt>, or <tt>hex</tt> format
<tr bgcolor="#d0d0d0"> <td valign="top"><tt>showpoint</tt> <td valign="top">Not currently used
<tr bgcolor="#f0f0f0"> <td valign="top"><tt>uppercase</tt> <td valign="top">Uses 0B and 0X rather than 0b and 0x
<tr bgcolor="#d0d0d0"> <td valign="top"><tt>showpos</tt> <td valign="top">Shows + for positive numeric values
<tr bgcolor="#f0f0f0"> <td valign="top"><tt>scientific</tt> <td valign="top">Uses scientific notation for floating point values
<tr bgcolor="#d0d0d0"> <td valign="top"><tt>fixed</tt> <td valign="top">Uses fixed-point notation for floating point values
</table></center>
<p> Note that unless <tt>bin</tt>, <tt>oct</tt>, <tt>dec</tt>, or <tt>hex</tt> is set, the
input base is octal if the value starts with 0, hexadecimal if it
starts with 0x, binary if it starts with 0b, and decimal
otherwise.
<p> <p>See also <a href="#setf">setf</a>() and <a href="#unsetf">unsetf</a>().
<h3 class=fn>int <a name="flags-2"></a>TQTextStream::flags ( int f )
</h3>
<p> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Sets the stream flags to <em>f</em>. Returns the previous stream flags.
<p> <p>See also <a href="#setf">setf</a>() and <a href="#unsetf">unsetf</a>().
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt"></a>TQTextStream::operator<< ( <a href="tqchar.html">TQChar</a> c )
</h3>
Writes character <tt>char</tt> 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 TQTextStream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-2"></a>TQTextStream::operator<< ( char c )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Writes character <em>c</em> to the stream and returns a reference to the
stream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-3"></a>TQTextStream::operator<< ( signed short i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Writes a <tt>short</tt> integer <em>i</em> to the stream and returns a
reference to the stream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-4"></a>TQTextStream::operator<< ( unsigned short i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Writes an <tt>unsigned</tt> <tt>short</tt> integer <em>i</em> to the stream and
returns a reference to the stream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-5"></a>TQTextStream::operator<< ( signed int i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Writes an <tt>int</tt> <em>i</em> to the stream and returns a reference to the
stream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-6"></a>TQTextStream::operator<< ( unsigned int i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Writes an <tt>unsigned</tt> <tt>int</tt> <em>i</em> to the stream and returns a
reference to the stream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-7"></a>TQTextStream::operator<< ( signed long i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Writes a <tt>long</tt> <tt>int</tt> <em>i</em> to the stream and returns a reference
to the stream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-8"></a>TQTextStream::operator<< ( unsigned long i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Writes an <tt>unsigned</tt> <tt>long</tt> <tt>int</tt> <em>i</em> to the stream and
returns a reference to the stream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-9"></a>TQTextStream::operator<< ( float f )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Writes a <tt>float</tt> <em>f</em> to the stream and returns a reference to
the stream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-a"></a>TQTextStream::operator<< ( double f )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Writes a <tt>double</tt> <em>f</em> to the stream and returns a reference to
the stream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-b"></a>TQTextStream::operator<< ( const char * s )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<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 TQTextStream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-c"></a>TQTextStream::operator<< ( const <a href="tqstring.html">TQString</a> & s )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Writes <em>s</em> to the stream and returns a reference to the stream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-d"></a>TQTextStream::operator<< ( const <a href="tqcstring.html">TQCString</a> & s )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<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 TQTextStream.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-lt-lt-e"></a>TQTextStream::operator<< ( void * ptr )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<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><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt"></a>TQTextStream::operator>> ( <a href="tqchar.html">TQChar</a> & c )
</h3>
Reads a char <em>c</em> from the stream and returns a reference to the
stream. Note that whitespace is <em>not</em> skipped.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-2"></a>TQTextStream::operator>> ( char & c )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads a char <em>c</em> from the stream and returns a reference to the
stream. Note that whitespace is skipped.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-3"></a>TQTextStream::operator>> ( signed short & i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads a signed <tt>short</tt> integer <em>i</em> from the stream and returns a
reference to the stream. See <a href="#flags">flags</a>() for an explanation of the
expected input format.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-4"></a>TQTextStream::operator>> ( unsigned short & i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads an unsigned <tt>short</tt> integer <em>i</em> from the stream and
returns a reference to the stream. See <a href="#flags">flags</a>() for an explanation
of the expected input format.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-5"></a>TQTextStream::operator>> ( signed int & i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads a signed <tt>int</tt> <em>i</em> from the stream and returns a reference
to the stream. See <a href="#flags">flags</a>() for an explanation of the expected
input format.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-6"></a>TQTextStream::operator>> ( unsigned int & i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads an unsigned <tt>int</tt> <em>i</em> from the stream and returns a
reference to the stream. See <a href="#flags">flags</a>() for an explanation of the
expected input format.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-7"></a>TQTextStream::operator>> ( signed long & i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads a signed <tt>long</tt> int <em>i</em> from the stream and returns a
reference to the stream. See <a href="#flags">flags</a>() for an explanation of the
expected input format.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-8"></a>TQTextStream::operator>> ( unsigned long & i )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads an unsigned <tt>long</tt> int <em>i</em> from the stream and returns a
reference to the stream. See <a href="#flags">flags</a>() for an explanation of the
expected input format.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-9"></a>TQTextStream::operator>> ( float & f )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads a <tt>float</tt> <em>f</em> from the stream and returns a reference to
the stream. See <a href="#flags">flags</a>() for an explanation of the expected input
format.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-a"></a>TQTextStream::operator>> ( double & f )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads a <tt>double</tt> <em>f</em> from the stream and returns a reference to
the stream. See <a href="#flags">flags</a>() for an explanation of the expected input
format.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-b"></a>TQTextStream::operator>> ( char * s )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads a "word" from the stream into <em>s</em> and returns a reference
to the stream.
<p> A word consists of characters for which isspace() returns FALSE.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-c"></a>TQTextStream::operator>> ( <a href="tqstring.html">TQString</a> & str )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads a "word" from the stream into <em>str</em> and returns a reference
to the stream.
<p> A word consists of characters for which isspace() returns FALSE.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="operator-gt-gt-d"></a>TQTextStream::operator>> ( <a href="tqcstring.html">TQCString</a> & str )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Reads a "word" from the stream into <em>str</em> and returns a reference
to the stream.
<p> A word consists of characters for which isspace() returns FALSE.
<h3 class=fn>int <a name="precision"></a>TQTextStream::precision () const
</h3>
<p> Returns the precision. The default value is 6.
<h3 class=fn>int <a name="precision-2"></a>TQTextStream::precision ( int p )
</h3>
<p> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Sets the precision to <em>p</em>. Returns the previous precision setting.
<h3 class=fn><a href="tqstring.html">TQString</a> <a name="read"></a>TQTextStream::read ()
</h3>
Reads the entire stream from the current position, and returns a string
containing the text.
<p> <p>See also <a href="tqiodevice.html#readLine">TQIODevice::readLine</a>().
<p>Examples: <a href="tqaction-application-example.html#x1171">action/application.cpp</a>, <a href="simple-application-example.html#x1589">application/application.cpp</a>, <a href="mdi-example.html#x2074">mdi/application.cpp</a>, <a href="tqdir-example.html#x1847">tqdir/tqdir.cpp</a>, and <a href="qwerty-example.html#x401">qwerty/qwerty.cpp</a>.
<h3 class=fn><a href="tqstring.html">TQString</a> <a name="readLine"></a>TQTextStream::readLine ()
</h3>
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="tqiodevice.html#readLine">TQIODevice::readLine</a>(), which does not strip the newline at the end
of the line.
<p> On EOF you will get a <a href="tqstring.html">TQString</a> that is null. On reading an empty
line the returned TQString is empty but not null.
<p> <p>See also <a href="tqiodevice.html#readLine">TQIODevice::readLine</a>().
<p>Examples: <a href="addressbook-example.html#x602">addressbook/centralwidget.cpp</a>, <a href="tutorial2-03.html#x2553">chart/element.cpp</a>, and <a href="clientserver-example.html#x787">network/clientserver/server/server.cpp</a>.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="readRawBytes"></a>TQTextStream::readRawBytes ( char * s, uint len )
</h3>
Reads <em>len</em> bytes from the stream into <em>s</em> 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 behavior of this function is undefined unless the
stream's encoding is set to Unicode or Latin1.
<p> <p>See also <a href="tqiodevice.html#readBlock">TQIODevice::readBlock</a>().
<h3 class=fn>void <a name="reset"></a>TQTextStream::reset ()
</h3>
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> <p>See also <a href="#setf">setf</a>(), <a href="#width">width</a>(), <a href="#fill">fill</a>(), and <a href="#precision">precision</a>().
<h3 class=fn>void <a name="setCodec"></a>TQTextStream::setCodec ( <a href="tqtextcodec.html">TQTextCodec</a> * codec )
</h3>
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> <p>See also <a href="#setEncoding">setEncoding</a>() and <a href="#codec">codec</a>().
<p>Example: <a href="qwerty-example.html#x402">qwerty/qwerty.cpp</a>.
<h3 class=fn>void <a name="setDevice"></a>TQTextStream::setDevice ( <a href="tqiodevice.html">TQIODevice</a> * iod )
</h3>
Sets the IO device to <em>iod</em>.
<p> <p>See also <a href="#device">device</a>() and <a href="#unsetDevice">unsetDevice</a>().
<h3 class=fn>void <a name="setEncoding"></a>TQTextStream::setEncoding ( <a href="tqtextstream.html#Encoding-enum">Encoding</a> e )
</h3>
Sets the encoding of this stream to <em>e</em>, where <em>e</em> is one of the
following values:
<center><table cellpadding="4" cellspacing="2" border="0">
<tr bgcolor="#a2c511"> <th valign="top">Encoding <th valign="top">Meaning
<tr bgcolor="#f0f0f0"> <td valign="top">Locale
<td valign="top">Uses local file format (Latin1 if locale is not set), but
autodetecting Unicode(utf16) on input.
<tr bgcolor="#d0d0d0"> <td valign="top">Unicode
<td valign="top">Uses 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="tqstring.html">TQString</a>).
<tr bgcolor="#f0f0f0"> <td valign="top">UnicodeUTF8
<td valign="top">Using Unicode(utf8) for input and output. If you use it for
input it will autodetect utf16 and use it instead of utf8.
<tr bgcolor="#d0d0d0"> <td valign="top">Latin1
<td valign="top">ISO-8859-1. Will not autodetect utf16.
<tr bgcolor="#f0f0f0"> <td valign="top">UnicodeNetworkOrder
<td valign="top">Uses network order Unicode(utf16) for input and output.
Useful when reading Unicode data that does not start with the
byte order marker.
<tr bgcolor="#d0d0d0"> <td valign="top">UnicodeReverse
<td valign="top">Uses reverse network order Unicode(utf16) for input and
output. Useful when reading Unicode data that does not start
with the byte order marker or when writing data that should be
read by buggy Windows applications.
<tr bgcolor="#f0f0f0"> <td valign="top">RawUnicode
<td valign="top">Like Unicode, but does not write the byte order marker nor
does it auto-detect the byte order. Useful only when writing to
non-persistent storage used by a single process.
</table></center>
<p> <a href="#Encoding-enum">Locale</a> and all Unicode encodings, except <a href="#Encoding-enum">RawUnicode</a>, will look
at the first two bytes in an 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
or written from the stream.
<p> <p>See also <a href="#setCodec">setCodec</a>().
<p>Examples: <a href="addressbook-example.html#x603">addressbook/centralwidget.cpp</a>, <a href="httpd-example.html#x735">network/httpd/httpd.cpp</a>, and <a href="qwerty-example.html#x403">qwerty/qwerty.cpp</a>.
<h3 class=fn>int <a name="setf"></a>TQTextStream::setf ( int bits )
</h3>
<p> Sets the stream flag bits <em>bits</em>. Returns the previous stream
flags.
<p> Equivalent to <tt>flags( flags() | bits )</tt>.
<p> <p>See also <a href="#unsetf">unsetf</a>().
<h3 class=fn>int <a name="setf-2"></a>TQTextStream::setf ( int bits, int mask )
</h3>
<p> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Sets the stream flag bits <em>bits</em> with a bit mask <em>mask</em>. Returns
the previous stream flags.
<p> Equivalent to <tt>flags( (flags() & ~mask) | (bits & mask) )</tt>.
<p> <p>See also <a href="#unsetf">unsetf</a>().
<h3 class=fn>void <a name="skipWhiteSpace"></a>TQTextStream::skipWhiteSpace ()
</h3>
Positions the read pointer at the first non-whitespace character.
<h3 class=fn>void <a name="unsetDevice"></a>TQTextStream::unsetDevice ()
</h3>
Unsets the IO device. Equivalent to <a href="#setDevice">setDevice</a>( 0 ).
<p> <p>See also <a href="#device">device</a>() and <a href="#setDevice">setDevice</a>().
<h3 class=fn>int <a name="unsetf"></a>TQTextStream::unsetf ( int bits )
</h3>
<p> Clears the stream flag bits <em>bits</em>. Returns the previous stream
flags.
<p> Equivalent to <tt>flags( flags() & ~mask )</tt>.
<p> <p>See also <a href="#setf">setf</a>().
<h3 class=fn>int <a name="width"></a>TQTextStream::width () const
</h3>
<p> Returns the field width. The default value is 0.
<h3 class=fn>int <a name="width-2"></a>TQTextStream::width ( int w )
</h3>
<p> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Sets the field width to <em>w</em>. Returns the previous field width.
<h3 class=fn><a href="tqtextstream.html">TQTextStream</a> & <a name="writeRawBytes"></a>TQTextStream::writeRawBytes ( const char * s, uint len )
</h3>
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> <p>See also <a href="tqiodevice.html#writeBlock">TQIODevice::writeBlock</a>().
<!-- eof -->
<hr><p>
This file is part of the <a href="index.html">TQt toolkit</a>.
Copyright © 1995-2007
<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 © 2007
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
<td align=right><div align=right>TQt 3.3.8</div>
</table></div></address></body>
</html>
|
