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
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>wxWidgets: wxDataOutputStream Class Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="extra_stylesheet.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<div id="page_container">
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0" style="width: 100%;">
<tbody>
<tr>
<td id="projectlogo">
<a href="http://www.wxwidgets.org/" target="_new">
<img alt="wxWidgets" src="logo.png"/>
</a>
</td>
<td style="padding-left: 0.5em; text-align: right;">
<span id="projectnumber">Version: 3.0.2</span>
</td>
</tr>
</tbody>
</table>
</div>
<!-- Generated by Doxygen 1.8.2 -->
<div id="navrow1" class="tabs">
<ul class="tablist">
<li><a href="index.html"><span>Main Page</span></a></li>
<li><a href="pages.html"><span>Related Pages</span></a></li>
<li><a href="modules.html"><span>Categories</span></a></li>
<li class="current"><a href="annotated.html"><span>Classes</span></a></li>
<li><a href="files.html"><span>Files</span></a></li>
</ul>
</div>
<div id="navrow2" class="tabs2">
<ul class="tablist">
<li><a href="annotated.html"><span>Class List</span></a></li>
<li><a href="classes.html"><span>Class Index</span></a></li>
<li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li>
<li><a href="functions.html"><span>Class Members</span></a></li>
</ul>
</div>
</div><!-- top -->
<div class="header">
<div class="summary">
<a href="#pub-methods">Public Member Functions</a> |
<a href="classwx_data_output_stream-members.html">List of all members</a> </div>
<div class="headertitle">
<div class="title">wxDataOutputStream Class Reference<div class="ingroups"><a class="el" href="group__group__class__streams.html">Streams</a></div></div> </div>
</div><!--header-->
<div class="contents">
<p><code>#include <wx/datstrm.h></code></p>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>This class provides functions that write binary data types in a portable way. </p>
<p>Data can be written in either big-endian or little-endian format, little-endian being the default on all architectures but <a class="el" href="classwx_data_output_stream.html#a2e81f24ae13610bcc4adc566946a47d1" title="If be_order is true, all data will be written in big-endian order, e.g.">BigEndianOrdered()</a> can be used to change this. The default format for the floating point types is 80 bit "extended precision" unless <code>wxUSE_APPLE_IEEE</code> was turned off during the library compilation, in which case extended precision is not available at all. You can call <a class="el" href="classwx_data_output_stream.html#a4c5edb15cb2b5e1e16fcaeb3ccf91dfb" title="Disables the use of extended precision format for floating point numbers.">UseBasicPrecisions()</a> to change this and use the standard IEEE 754 32 bit single precision format for floats and standard 64 bit double precision format for doubles. This is recommended for the new code for better interoperability with other software that typically uses standard IEEE 754 formats for its data, the use of extended precision by default is solely due to backwards compatibility.</p>
<p>If you want to write data to text files (or streams) use <a class="el" href="classwx_text_output_stream.html" title="This class provides functions that write text data using an output stream, allowing you to write text...">wxTextOutputStream</a> instead.</p>
<p>The "<<" operator is overloaded and you can use this class like a standard C++ iostream. See <a class="el" href="classwx_data_input_stream.html" title="This class provides functions that read binary data types in a portable way.">wxDataInputStream</a> for its usage and caveats.</p>
<h2></h2>
<div><span class="lib">Library:</span>  <span class="lib_text"><a class="el" href="page_libs.html#page_libs_wxbase">wxBase</a></span></div><div><span class="category">Category:</span>  <span class="category_text"><a class="el" href="group__group__class__streams.html">Streams</a></span></div><dl class="section see"><dt>See Also</dt><dd><a class="el" href="classwx_data_input_stream.html" title="This class provides functions that read binary data types in a portable way.">wxDataInputStream</a> </dd></dl>
</div><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a7fb37c717609de9f339321d186afe547"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#a7fb37c717609de9f339321d186afe547">wxDataOutputStream</a> (<a class="el" href="classwx_output_stream.html">wxOutputStream</a> &stream, const <a class="el" href="classwx_m_b_conv.html">wxMBConv</a> &conv=wxConvUTF8)</td></tr>
<tr class="memdesc:a7fb37c717609de9f339321d186afe547"><td class="mdescLeft"> </td><td class="mdescRight">Constructs a datastream object from an output stream. <a href="#a7fb37c717609de9f339321d186afe547"></a><br/></td></tr>
<tr class="separator:a7fb37c717609de9f339321d186afe547"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8373bef51ad9b57f635ad6d66055ef65"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#a8373bef51ad9b57f635ad6d66055ef65">~wxDataOutputStream</a> ()</td></tr>
<tr class="memdesc:a8373bef51ad9b57f635ad6d66055ef65"><td class="mdescLeft"> </td><td class="mdescRight">Destroys the <a class="el" href="classwx_data_output_stream.html" title="This class provides functions that write binary data types in a portable way.">wxDataOutputStream</a> object. <a href="#a8373bef51ad9b57f635ad6d66055ef65"></a><br/></td></tr>
<tr class="separator:a8373bef51ad9b57f635ad6d66055ef65"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2e81f24ae13610bcc4adc566946a47d1"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#a2e81f24ae13610bcc4adc566946a47d1">BigEndianOrdered</a> (bool be_order)</td></tr>
<tr class="memdesc:a2e81f24ae13610bcc4adc566946a47d1"><td class="mdescLeft"> </td><td class="mdescRight">If <em>be_order</em> is <span class="literal">true</span>, all data will be written in big-endian order, e.g. <a href="#a2e81f24ae13610bcc4adc566946a47d1"></a><br/></td></tr>
<tr class="separator:a2e81f24ae13610bcc4adc566946a47d1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac77976709d7884b21d5afcab6857f53b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classwx_m_b_conv.html">wxMBConv</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#ac77976709d7884b21d5afcab6857f53b">GetConv</a> () const </td></tr>
<tr class="memdesc:ac77976709d7884b21d5afcab6857f53b"><td class="mdescLeft"> </td><td class="mdescRight">Returns the current text conversion class used for writing strings. <a href="#ac77976709d7884b21d5afcab6857f53b"></a><br/></td></tr>
<tr class="separator:ac77976709d7884b21d5afcab6857f53b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3e585f43a9c1127d93316c5b9d1b3da8"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#a3e585f43a9c1127d93316c5b9d1b3da8">SetConv</a> (const <a class="el" href="classwx_m_b_conv.html">wxMBConv</a> &conv)</td></tr>
<tr class="memdesc:a3e585f43a9c1127d93316c5b9d1b3da8"><td class="mdescLeft"> </td><td class="mdescRight">Sets the text conversion class used for writing strings. <a href="#a3e585f43a9c1127d93316c5b9d1b3da8"></a><br/></td></tr>
<tr class="separator:a3e585f43a9c1127d93316c5b9d1b3da8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4c5edb15cb2b5e1e16fcaeb3ccf91dfb"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#a4c5edb15cb2b5e1e16fcaeb3ccf91dfb">UseBasicPrecisions</a> ()</td></tr>
<tr class="memdesc:a4c5edb15cb2b5e1e16fcaeb3ccf91dfb"><td class="mdescLeft"> </td><td class="mdescRight">Disables the use of extended precision format for floating point numbers. <a href="#a4c5edb15cb2b5e1e16fcaeb3ccf91dfb"></a><br/></td></tr>
<tr class="separator:a4c5edb15cb2b5e1e16fcaeb3ccf91dfb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3567889a28566ece070de26a4af6d084"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#a3567889a28566ece070de26a4af6d084">UseExtendedPrecision</a> ()</td></tr>
<tr class="memdesc:a3567889a28566ece070de26a4af6d084"><td class="mdescLeft"> </td><td class="mdescRight">Explicitly request the use of extended precision for floating point numbers. <a href="#a3567889a28566ece070de26a4af6d084"></a><br/></td></tr>
<tr class="separator:a3567889a28566ece070de26a4af6d084"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a51e3e2bafdd4023dfa216c27993603f0"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#a51e3e2bafdd4023dfa216c27993603f0">Write8</a> (<a class="el" href="defs_8h.html#aad88e290b822df511ad8025ee2e45263">wxUint8</a> i8)</td></tr>
<tr class="memdesc:a51e3e2bafdd4023dfa216c27993603f0"><td class="mdescLeft"> </td><td class="mdescRight">Writes the single byte <em>i8</em> to the stream. <a href="#a51e3e2bafdd4023dfa216c27993603f0"></a><br/></td></tr>
<tr class="separator:a51e3e2bafdd4023dfa216c27993603f0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af5edf80d17cf04c0de64b3cf45c8e4be"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#af5edf80d17cf04c0de64b3cf45c8e4be">Write8</a> (const <a class="el" href="defs_8h.html#aad88e290b822df511ad8025ee2e45263">wxUint8</a> *buffer, size_t size)</td></tr>
<tr class="memdesc:af5edf80d17cf04c0de64b3cf45c8e4be"><td class="mdescLeft"> </td><td class="mdescRight">Writes an array of bytes to the stream. <a href="#af5edf80d17cf04c0de64b3cf45c8e4be"></a><br/></td></tr>
<tr class="separator:af5edf80d17cf04c0de64b3cf45c8e4be"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a71b069b0ae19f613c1f14214790c7f62"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#a71b069b0ae19f613c1f14214790c7f62">Write16</a> (<a class="el" href="defs_8h.html#a8e9363c460a79dd550df544fab96e16d">wxUint16</a> i16)</td></tr>
<tr class="memdesc:a71b069b0ae19f613c1f14214790c7f62"><td class="mdescLeft"> </td><td class="mdescRight">Writes the 16 bit unsigned integer <em>i16</em> to the stream. <a href="#a71b069b0ae19f613c1f14214790c7f62"></a><br/></td></tr>
<tr class="separator:a71b069b0ae19f613c1f14214790c7f62"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7f9993d71c30a18cc75daa82d1bbd7f9"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#a7f9993d71c30a18cc75daa82d1bbd7f9">Write16</a> (const <a class="el" href="defs_8h.html#a8e9363c460a79dd550df544fab96e16d">wxUint16</a> *buffer, size_t size)</td></tr>
<tr class="memdesc:a7f9993d71c30a18cc75daa82d1bbd7f9"><td class="mdescLeft"> </td><td class="mdescRight">Writes an array of 16 bit unsigned integer to the stream. <a href="#a7f9993d71c30a18cc75daa82d1bbd7f9"></a><br/></td></tr>
<tr class="separator:a7f9993d71c30a18cc75daa82d1bbd7f9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8ed33d4489e1c9e477b3ebd4cba17e0b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#a8ed33d4489e1c9e477b3ebd4cba17e0b">Write32</a> (<a class="el" href="defs_8h.html#afdb12e5345c3fae4b537e813df9f02a3">wxUint32</a> i32)</td></tr>
<tr class="memdesc:a8ed33d4489e1c9e477b3ebd4cba17e0b"><td class="mdescLeft"> </td><td class="mdescRight">Writes the 32 bit unsigned integer <em>i32</em> to the stream. <a href="#a8ed33d4489e1c9e477b3ebd4cba17e0b"></a><br/></td></tr>
<tr class="separator:a8ed33d4489e1c9e477b3ebd4cba17e0b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:acd99b68c389f6d8bd0f9dfb09a53ed87"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#acd99b68c389f6d8bd0f9dfb09a53ed87">Write32</a> (const <a class="el" href="defs_8h.html#afdb12e5345c3fae4b537e813df9f02a3">wxUint32</a> *buffer, size_t size)</td></tr>
<tr class="memdesc:acd99b68c389f6d8bd0f9dfb09a53ed87"><td class="mdescLeft"> </td><td class="mdescRight">Writes an array of 32 bit unsigned integer to the stream. <a href="#acd99b68c389f6d8bd0f9dfb09a53ed87"></a><br/></td></tr>
<tr class="separator:acd99b68c389f6d8bd0f9dfb09a53ed87"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab603dcaeb8a41c109d95799a7e44dc0f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#ab603dcaeb8a41c109d95799a7e44dc0f">Write64</a> (<a class="el" href="defs_8h.html#a356b5511a759210b8138b6433ed8b1fc">wxUint64</a> i64)</td></tr>
<tr class="memdesc:ab603dcaeb8a41c109d95799a7e44dc0f"><td class="mdescLeft"> </td><td class="mdescRight">Writes the 64 bit unsigned integer <em>i64</em> to the stream. <a href="#ab603dcaeb8a41c109d95799a7e44dc0f"></a><br/></td></tr>
<tr class="separator:ab603dcaeb8a41c109d95799a7e44dc0f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab79689966c8f09118c5fdfbcf98f90c0"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#ab79689966c8f09118c5fdfbcf98f90c0">Write64</a> (const <a class="el" href="defs_8h.html#a356b5511a759210b8138b6433ed8b1fc">wxUint64</a> *buffer, size_t size)</td></tr>
<tr class="memdesc:ab79689966c8f09118c5fdfbcf98f90c0"><td class="mdescLeft"> </td><td class="mdescRight">Writes an array of 64 bit unsigned integer to the stream. <a href="#ab79689966c8f09118c5fdfbcf98f90c0"></a><br/></td></tr>
<tr class="separator:ab79689966c8f09118c5fdfbcf98f90c0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad3abc552c947509c7f0b69d9449abbe4"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#ad3abc552c947509c7f0b69d9449abbe4">WriteFloat</a> (float f)</td></tr>
<tr class="memdesc:ad3abc552c947509c7f0b69d9449abbe4"><td class="mdescLeft"> </td><td class="mdescRight">Writes the float <em>f</em> to the stream. <a href="#ad3abc552c947509c7f0b69d9449abbe4"></a><br/></td></tr>
<tr class="separator:ad3abc552c947509c7f0b69d9449abbe4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac05b830a50acb4929c18807b518612af"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#ac05b830a50acb4929c18807b518612af">WriteFloat</a> (const float *buffer, size_t size)</td></tr>
<tr class="memdesc:ac05b830a50acb4929c18807b518612af"><td class="mdescLeft"> </td><td class="mdescRight">Writes an array of float to the stream. <a href="#ac05b830a50acb4929c18807b518612af"></a><br/></td></tr>
<tr class="separator:ac05b830a50acb4929c18807b518612af"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac4446de313514ca452c5adf75f13964c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#ac4446de313514ca452c5adf75f13964c">WriteDouble</a> (double d)</td></tr>
<tr class="memdesc:ac4446de313514ca452c5adf75f13964c"><td class="mdescLeft"> </td><td class="mdescRight">Writes the double <em>d</em> to the stream. <a href="#ac4446de313514ca452c5adf75f13964c"></a><br/></td></tr>
<tr class="separator:ac4446de313514ca452c5adf75f13964c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6c7a2a4f07cc05b391cf0fe8a726fba5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#a6c7a2a4f07cc05b391cf0fe8a726fba5">WriteDouble</a> (const double *buffer, size_t size)</td></tr>
<tr class="memdesc:a6c7a2a4f07cc05b391cf0fe8a726fba5"><td class="mdescLeft"> </td><td class="mdescRight">Writes an array of double to the stream. <a href="#a6c7a2a4f07cc05b391cf0fe8a726fba5"></a><br/></td></tr>
<tr class="separator:a6c7a2a4f07cc05b391cf0fe8a726fba5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad59954476921dd0f4a480e4d212ed61a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classwx_data_output_stream.html#ad59954476921dd0f4a480e4d212ed61a">WriteString</a> (const <a class="el" href="classwx_string.html">wxString</a> &string)</td></tr>
<tr class="memdesc:ad59954476921dd0f4a480e4d212ed61a"><td class="mdescLeft"> </td><td class="mdescRight">Writes <em>string</em> to the stream. <a href="#ad59954476921dd0f4a480e4d212ed61a"></a><br/></td></tr>
<tr class="separator:ad59954476921dd0f4a480e4d212ed61a"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<h2 class="groupheader">Constructor & Destructor Documentation</h2>
<a class="anchor" id="a7fb37c717609de9f339321d186afe547"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">wxDataOutputStream::wxDataOutputStream </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classwx_output_stream.html">wxOutputStream</a> & </td>
<td class="paramname"><em>stream</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classwx_m_b_conv.html">wxMBConv</a> & </td>
<td class="paramname"><em>conv</em> = <code>wxConvUTF8</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Constructs a datastream object from an output stream. </p>
<p>Only write methods will be available.</p>
<p>Note that the <em>conv</em> parameter is only available in Unicode builds of wxWidgets.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">stream</td><td>The output stream. </td></tr>
<tr><td class="paramname">conv</td><td>Charset conversion object used to encoding Unicode strings before writing them to the stream in Unicode mode (see <a class="el" href="classwx_data_output_stream.html#ad59954476921dd0f4a480e4d212ed61a" title="Writes string to the stream.">WriteString()</a> for a detailed description). Note that you must not destroy <em>conv</em> before you destroy this <a class="el" href="classwx_data_output_stream.html" title="This class provides functions that write binary data types in a portable way.">wxDataOutputStream</a> instance! It is recommended to use the default value (UTF-8). </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a8373bef51ad9b57f635ad6d66055ef65"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">wxDataOutputStream::~wxDataOutputStream </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Destroys the <a class="el" href="classwx_data_output_stream.html" title="This class provides functions that write binary data types in a portable way.">wxDataOutputStream</a> object. </p>
</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
<a class="anchor" id="a2e81f24ae13610bcc4adc566946a47d1"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::BigEndianOrdered </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"><em>be_order</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>If <em>be_order</em> is <span class="literal">true</span>, all data will be written in big-endian order, e.g. </p>
<p>for reading on a Sparc or from Java-Streams (which always use big-endian order), otherwise data will be written in little-endian order. </p>
</div>
</div>
<a class="anchor" id="ac77976709d7884b21d5afcab6857f53b"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="classwx_m_b_conv.html">wxMBConv</a>* wxDataOutputStream::GetConv </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</div><div class="memdoc">
<p>Returns the current text conversion class used for writing strings. </p>
</div>
</div>
<a class="anchor" id="a3e585f43a9c1127d93316c5b9d1b3da8"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::SetConv </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classwx_m_b_conv.html">wxMBConv</a> & </td>
<td class="paramname"><em>conv</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Sets the text conversion class used for writing strings. </p>
</div>
</div>
<a class="anchor" id="a4c5edb15cb2b5e1e16fcaeb3ccf91dfb"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::UseBasicPrecisions </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Disables the use of extended precision format for floating point numbers. </p>
<p>This method disables the use of 80 bit extended precision format for the <code>float</code> and <code>double</code> values written to the stream, which is used by default (unless <code>wxUSE_APPLE_IEEE</code> was set to <code>0</code> when building the library, in which case the extended format support is not available at all and this function does nothing).</p>
<p>After calling it, <code>float</code> values will be written out in one of IEEE 754 "basic formats", i.e. 32 bit single precision format for floats and 64 bit double precision format for doubles.</p>
<dl class="section since"><dt>Since</dt><dd>2.9.5 </dd></dl>
</div>
</div>
<a class="anchor" id="a3567889a28566ece070de26a4af6d084"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::UseExtendedPrecision </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Explicitly request the use of extended precision for floating point numbers. </p>
<p>This function allows the application code to explicitly request the use of 80 bit extended precision format for the floating point numbers. This is the case by default but using this function explicitly ensures that the compilation of code relying on producing the output stream using extended precision would fail when using a version of wxWidgets compiled with <code>wxUSE_APPLE_IEEE==0</code> and so not supporting this format at all.</p>
<dl class="section since"><dt>Since</dt><dd>2.9.5 </dd></dl>
</div>
</div>
<a class="anchor" id="a71b069b0ae19f613c1f14214790c7f62"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::Write16 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="defs_8h.html#a8e9363c460a79dd550df544fab96e16d">wxUint16</a> </td>
<td class="paramname"><em>i16</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes the 16 bit unsigned integer <em>i16</em> to the stream. </p>
</div>
</div>
<a class="anchor" id="a7f9993d71c30a18cc75daa82d1bbd7f9"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::Write16 </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="defs_8h.html#a8e9363c460a79dd550df544fab96e16d">wxUint16</a> * </td>
<td class="paramname"><em>buffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes an array of 16 bit unsigned integer to the stream. </p>
<p>The number of 16 bit unsigned integer to write is specified with the <em>size</em> variable. </p>
</div>
</div>
<a class="anchor" id="a8ed33d4489e1c9e477b3ebd4cba17e0b"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::Write32 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="defs_8h.html#afdb12e5345c3fae4b537e813df9f02a3">wxUint32</a> </td>
<td class="paramname"><em>i32</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes the 32 bit unsigned integer <em>i32</em> to the stream. </p>
</div>
</div>
<a class="anchor" id="acd99b68c389f6d8bd0f9dfb09a53ed87"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::Write32 </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="defs_8h.html#afdb12e5345c3fae4b537e813df9f02a3">wxUint32</a> * </td>
<td class="paramname"><em>buffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes an array of 32 bit unsigned integer to the stream. </p>
<p>The number of 32 bit unsigned integer to write is specified with the <em>size</em> variable. </p>
</div>
</div>
<a class="anchor" id="ab603dcaeb8a41c109d95799a7e44dc0f"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::Write64 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="defs_8h.html#a356b5511a759210b8138b6433ed8b1fc">wxUint64</a> </td>
<td class="paramname"><em>i64</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes the 64 bit unsigned integer <em>i64</em> to the stream. </p>
</div>
</div>
<a class="anchor" id="ab79689966c8f09118c5fdfbcf98f90c0"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::Write64 </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="defs_8h.html#a356b5511a759210b8138b6433ed8b1fc">wxUint64</a> * </td>
<td class="paramname"><em>buffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes an array of 64 bit unsigned integer to the stream. </p>
<p>The number of 64 bit unsigned integer to write is specified with the <em>size</em> variable. </p>
</div>
</div>
<a class="anchor" id="a51e3e2bafdd4023dfa216c27993603f0"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::Write8 </td>
<td>(</td>
<td class="paramtype"><a class="el" href="defs_8h.html#aad88e290b822df511ad8025ee2e45263">wxUint8</a> </td>
<td class="paramname"><em>i8</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes the single byte <em>i8</em> to the stream. </p>
</div>
</div>
<a class="anchor" id="af5edf80d17cf04c0de64b3cf45c8e4be"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::Write8 </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="defs_8h.html#aad88e290b822df511ad8025ee2e45263">wxUint8</a> * </td>
<td class="paramname"><em>buffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes an array of bytes to the stream. </p>
<p>The number of bytes to write is specified with the <em>size</em> variable. </p>
</div>
</div>
<a class="anchor" id="ac4446de313514ca452c5adf75f13964c"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::WriteDouble </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>d</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes the double <em>d</em> to the stream. </p>
<p>The output format is either 80 bit extended precision or, if <a class="el" href="classwx_data_output_stream.html#a4c5edb15cb2b5e1e16fcaeb3ccf91dfb" title="Disables the use of extended precision format for floating point numbers.">UseBasicPrecisions()</a> had been called, standard IEEE 754 64 bit double precision. </p>
</div>
</div>
<a class="anchor" id="a6c7a2a4f07cc05b391cf0fe8a726fba5"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::WriteDouble </td>
<td>(</td>
<td class="paramtype">const double * </td>
<td class="paramname"><em>buffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes an array of double to the stream. </p>
<p>The number of doubles to write is specified by the <em>size</em> variable. </p>
</div>
</div>
<a class="anchor" id="ad3abc552c947509c7f0b69d9449abbe4"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::WriteFloat </td>
<td>(</td>
<td class="paramtype">float </td>
<td class="paramname"><em>f</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes the float <em>f</em> to the stream. </p>
<p>If <a class="el" href="classwx_data_output_stream.html#a4c5edb15cb2b5e1e16fcaeb3ccf91dfb" title="Disables the use of extended precision format for floating point numbers.">UseBasicPrecisions()</a> had been called, the value is written out using the standard IEEE 754 32 bit single precision format. Otherwise, this method uses the same format as <a class="el" href="classwx_data_output_stream.html#ac4446de313514ca452c5adf75f13964c" title="Writes the double d to the stream.">WriteDouble()</a>, i.e. 80 bit extended precision representation.</p>
<dl class="section since"><dt>Since</dt><dd>2.9.5 </dd></dl>
</div>
</div>
<a class="anchor" id="ac05b830a50acb4929c18807b518612af"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::WriteFloat </td>
<td>(</td>
<td class="paramtype">const float * </td>
<td class="paramname"><em>buffer</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t </td>
<td class="paramname"><em>size</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes an array of float to the stream. </p>
<p>The number of floats to write is specified by the <em>size</em> variable.</p>
<dl class="section since"><dt>Since</dt><dd>2.9.5 </dd></dl>
</div>
</div>
<a class="anchor" id="ad59954476921dd0f4a480e4d212ed61a"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void wxDataOutputStream::WriteString </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classwx_string.html">wxString</a> & </td>
<td class="paramname"><em>string</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Writes <em>string</em> to the stream. </p>
<p>Actually, this method writes the size of the string before writing <em>string</em> itself.</p>
<p>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 <em>conv</em> object passed to stream's constructor (consequently, ANSI applications 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. </p>
</div>
</div>
</div><!-- contents -->
<address class="footer">
<small>
Generated on Thu Nov 27 2014 13:46:45 for wxWidgets by <a href="http://www.doxygen.org/index.html" target="_new">Doxygen</a> 1.8.2
</small>
</address>
<script src="wxwidgets.js" type="text/javascript"></script>
</div><!-- #page_container -->
</body>
</html>
|
