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
|
<!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/tqfileinfo.cpp:52 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>TQFileInfo 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>TQFileInfo Class Reference</h1>
<p>The TQFileInfo class provides system-independent file information.
<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="tqfileinfo-h.html">tqfileinfo.h</a>></tt>
<p><a href="tqfileinfo-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn>enum <a href="#PermissionSpec-enum"><b>PermissionSpec</b></a> { ReadOwner = 04000, WriteOwner = 02000, ExeOwner = 01000, ReadUser = 00400, WriteUser = 00200, ExeUser = 00100, ReadGroup = 00040, WriteGroup = 00020, ExeGroup = 00010, ReadOther = 00004, WriteOther = 00002, ExeOther = 00001 }</li>
<li class=fn><a href="#TQFileInfo"><b>TQFileInfo</b></a> ()</li>
<li class=fn><a href="#TQFileInfo-2"><b>TQFileInfo</b></a> ( const TQString & file )</li>
<li class=fn><a href="#TQFileInfo-3"><b>TQFileInfo</b></a> ( const TQFile & file )</li>
<li class=fn><a href="#TQFileInfo-4"><b>TQFileInfo</b></a> ( const TQDir & d, const TQString & fileName )</li>
<li class=fn><a href="#TQFileInfo-5"><b>TQFileInfo</b></a> ( const TQFileInfo & fi )</li>
<li class=fn><a href="#~TQFileInfo"><b>~TQFileInfo</b></a> ()</li>
<li class=fn>TQFileInfo & <a href="#operator-eq"><b>operator=</b></a> ( const TQFileInfo & fi )</li>
<li class=fn>void <a href="#setFile"><b>setFile</b></a> ( const TQString & file )</li>
<li class=fn>void <a href="#setFile-2"><b>setFile</b></a> ( const TQFile & file )</li>
<li class=fn>void <a href="#setFile-3"><b>setFile</b></a> ( const TQDir & d, const TQString & fileName )</li>
<li class=fn>bool <a href="#exists"><b>exists</b></a> () const</li>
<li class=fn>void <a href="#refresh"><b>refresh</b></a> () const</li>
<li class=fn>bool <a href="#caching"><b>caching</b></a> () const</li>
<li class=fn>void <a href="#setCaching"><b>setCaching</b></a> ( bool enable )</li>
<li class=fn>TQString <a href="#filePath"><b>filePath</b></a> () const</li>
<li class=fn>TQString <a href="#fileName"><b>fileName</b></a> () const</li>
<li class=fn>TQString <a href="#absFilePath"><b>absFilePath</b></a> () const</li>
<li class=fn>TQString <a href="#baseName"><b>baseName</b></a> ( bool complete = FALSE ) const</li>
<li class=fn>TQString <a href="#extension"><b>extension</b></a> ( bool complete = TRUE ) const</li>
<li class=fn>TQString <a href="#dirPath"><b>dirPath</b></a> ( bool absPath = FALSE ) const</li>
<li class=fn>TQDir <a href="#dir"><b>dir</b></a> ( bool absPath = FALSE ) const</li>
<li class=fn>bool <a href="#isReadable"><b>isReadable</b></a> () const</li>
<li class=fn>bool <a href="#isWritable"><b>isWritable</b></a> () const</li>
<li class=fn>bool <a href="#isExecutable"><b>isExecutable</b></a> () const</li>
<li class=fn>bool <a href="#isHidden"><b>isHidden</b></a> () const</li>
<li class=fn>bool <a href="#isRelative"><b>isRelative</b></a> () const</li>
<li class=fn>bool <a href="#convertToAbs"><b>convertToAbs</b></a> ()</li>
<li class=fn>bool <a href="#isFile"><b>isFile</b></a> () const</li>
<li class=fn>bool <a href="#isDir"><b>isDir</b></a> () const</li>
<li class=fn>bool <a href="#isSymLink"><b>isSymLink</b></a> () const</li>
<li class=fn>TQString <a href="#readLink"><b>readLink</b></a> () const</li>
<li class=fn>TQString <a href="#owner"><b>owner</b></a> () const</li>
<li class=fn>uint <a href="#ownerId"><b>ownerId</b></a> () const</li>
<li class=fn>TQString <a href="#group"><b>group</b></a> () const</li>
<li class=fn>uint <a href="#groupId"><b>groupId</b></a> () const</li>
<li class=fn>bool <a href="#permission"><b>permission</b></a> ( int permissionSpec ) const</li>
<li class=fn>uint <a href="#size"><b>size</b></a> () const</li>
<li class=fn>TQDateTime <a href="#created"><b>created</b></a> () const</li>
<li class=fn>TQDateTime <a href="#lastModified"><b>lastModified</b></a> () const</li>
<li class=fn>TQDateTime <a href="#lastRead"><b>lastRead</b></a> () const</li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
The TQFileInfo class provides system-independent file information.
<p>
<p> TQFileInfo provides information about a file's name and position
(path) in the file system, its access rights and whether it is a
directory or symbolic link, etc. The file's size and last
modified/read times are also available.
<p> A TQFileInfo can point to a file with either a relative or an
absolute file path. Absolute file paths begin with the directory
separator "/" (or with a drive specification on Windows). Relative
file names begin with a directory name or a file name and specify
a path relative to the current working directory. An example of an
absolute path is the string "/tmp/quartz". A relative path might
look like "src/fatlib". You can use the function <a href="#isRelative">isRelative</a>() to
check whether a TQFileInfo is using a relative or an absolute file
path. You can call the function <a href="#convertToAbs">convertToAbs</a>() to convert a
relative TQFileInfo's path to an absolute path.
<p> The file that the TQFileInfo works on is set in the constructor or
later with <a href="#setFile">setFile</a>(). Use <a href="#exists">exists</a>() to see if the file exists and
<a href="#size">size</a>() to get its size.
<p> To speed up performance, TQFileInfo caches information about the
file. Because files can be changed by other users or programs, or
even by other parts of the same program, there is a function that
refreshes the file information: <a href="#refresh">refresh</a>(). If you want to switch
off a TQFileInfo's caching and force it to access the file system
every time you request information from it call <a href="#setCaching">setCaching</a>(FALSE).
<p> The file's type is obtained with <a href="#isFile">isFile</a>(), <a href="#isDir">isDir</a>() and
<a href="#isSymLink">isSymLink</a>(). The <a href="#readLink">readLink</a>() function provides the name of the file
the symlink points to.
<p> Elements of the file's name can be extracted with <a href="#dirPath">dirPath</a>() and
<a href="#fileName">fileName</a>(). The fileName()'s parts can be extracted with
<a href="#baseName">baseName</a>() and <a href="#extension">extension</a>().
<p> The file's dates are returned by <a href="#created">created</a>(), <a href="#lastModified">lastModified</a>() and
<a href="#lastRead">lastRead</a>(). Information about the file's access permissions is
obtained with <a href="#isReadable">isReadable</a>(), <a href="#isWritable">isWritable</a>() and <a href="#isExecutable">isExecutable</a>(). The
file's ownership is available from <a href="#owner">owner</a>(), <a href="#ownerId">ownerId</a>(), <a href="#group">group</a>() and
<a href="#groupId">groupId</a>(). You can examine a file's permissions and ownership in a
single statement using the <a href="#permission">permission</a>() function.
<p> If you need to read and traverse directories, see the <a href="tqdir.html">TQDir</a> class.
<p>See also <a href="io.html">Input/Output and Networking</a>.
<hr><h2>Member Type Documentation</h2>
<h3 class=fn><a name="PermissionSpec-enum"></a>TQFileInfo::PermissionSpec</h3>
<p> This enum is used by the <a href="#permission">permission</a>() function to report the
permissions and ownership of a file. The values may be OR-ed
together to test multiple permissions and ownership values.
<ul>
<li><tt>TQFileInfo::ReadOwner</tt> - The file is readable by the owner of the file.
<li><tt>TQFileInfo::WriteOwner</tt> - The file is writable by the owner of the file.
<li><tt>TQFileInfo::ExeOwner</tt> - The file is executable by the owner of the file.
<li><tt>TQFileInfo::ReadUser</tt> - The file is readable by the user.
<li><tt>TQFileInfo::WriteUser</tt> - The file is writable by the user.
<li><tt>TQFileInfo::ExeUser</tt> - The file is executable by the user.
<li><tt>TQFileInfo::ReadGroup</tt> - The file is readable by the group.
<li><tt>TQFileInfo::WriteGroup</tt> - The file is writable by the group.
<li><tt>TQFileInfo::ExeGroup</tt> - The file is executable by the group.
<li><tt>TQFileInfo::ReadOther</tt> - The file is readable by anyone.
<li><tt>TQFileInfo::WriteOther</tt> - The file is writable by anyone.
<li><tt>TQFileInfo::ExeOther</tt> - The file is executable by anyone.
</ul><p> <b>Warning:</b> The semantics of <a href="#PermissionSpec-enum">ReadUser</a>, <a href="#PermissionSpec-enum">WriteUser</a> and <a href="#PermissionSpec-enum">ExeUser</a> are
unfortunately not platform independent: on Unix, the rights of the owner of
the file are returned and on Windows the rights of the current user are
returned. This behavior might change in a future TQt version. If you want to
find the rights of the owner of the file, you should use the flags <a href="#PermissionSpec-enum">ReadOwner</a>, <a href="#PermissionSpec-enum">WriteOwner</a> and <a href="#PermissionSpec-enum">ExeOwner</a>. If you want to find out the
rights of the current user, you should use <a href="#isReadable">isReadable</a>(), <a href="#isWritable">isWritable</a>() and
<a href="#isExecutable">isExecutable</a>().
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="TQFileInfo"></a>TQFileInfo::TQFileInfo ()
</h3>
Constructs a new empty TQFileInfo.
<h3 class=fn><a name="TQFileInfo-2"></a>TQFileInfo::TQFileInfo ( const <a href="tqstring.html">TQString</a> & file )
</h3>
Constructs a new TQFileInfo that gives information about the given
file. The <em>file</em> can also include an absolute or relative path.
<p> <b>Warning:</b> Some functions might behave in a counter-intuitive way
if <em>file</em> has a trailing directory separator.
<p> <p>See also <a href="#setFile">setFile</a>(), <a href="#isRelative">isRelative</a>(), <a href="tqdir.html#setCurrent">TQDir::setCurrent</a>(), and <a href="tqdir.html#isRelativePath">TQDir::isRelativePath</a>().
<h3 class=fn><a name="TQFileInfo-3"></a>TQFileInfo::TQFileInfo ( const <a href="tqfile.html">TQFile</a> & file )
</h3>
Constructs a new TQFileInfo that gives information about file <em>file</em>.
<p> If the <em>file</em> has a relative path, the TQFileInfo will also have a
relative path.
<p> <p>See also <a href="#isRelative">isRelative</a>().
<h3 class=fn><a name="TQFileInfo-4"></a>TQFileInfo::TQFileInfo ( const <a href="tqdir.html">TQDir</a> & d, const <a href="tqstring.html">TQString</a> & fileName )
</h3>
Constructs a new TQFileInfo that gives information about the file
called <em>fileName</em> in the directory <em>d</em>.
<p> If <em>d</em> has a relative path, the TQFileInfo will also have a
relative path.
<p> <p>See also <a href="#isRelative">isRelative</a>().
<h3 class=fn><a name="TQFileInfo-5"></a>TQFileInfo::TQFileInfo ( const <a href="tqfileinfo.html">TQFileInfo</a> & fi )
</h3>
Constructs a new TQFileInfo that is a copy of <em>fi</em>.
<h3 class=fn><a name="~TQFileInfo"></a>TQFileInfo::~TQFileInfo ()
</h3>
Destroys the TQFileInfo and frees its resources.
<h3 class=fn><a href="tqstring.html">TQString</a> <a name="absFilePath"></a>TQFileInfo::absFilePath () const
</h3>
Returns the absolute path including the file name.
<p> The absolute path name consists of the full path and the file
name. On Unix this will always begin with the root, '/',
directory. On Windows this will always begin 'D:/' where D is a
drive letter, except for network shares that are not mapped to a
drive letter, in which case the path will begin '//sharename/'.
<p> This function returns the same as <a href="#filePath">filePath</a>(), unless <a href="#isRelative">isRelative</a>()
is TRUE.
<p> If the TQFileInfo is empty it returns <a href="tqdir.html#currentDirPath">TQDir::currentDirPath</a>().
<p> This function can be time consuming under Unix (in the order of
milliseconds).
<p> <p>See also <a href="#isRelative">isRelative</a>() and <a href="#filePath">filePath</a>().
<p>Examples: <a href="biff-example.html#x1954">biff/biff.cpp</a> and <a href="fileiconview-example.html#x820">fileiconview/tqfileiconview.cpp</a>.
<h3 class=fn><a href="tqstring.html">TQString</a> <a name="baseName"></a>TQFileInfo::baseName ( bool complete = FALSE ) const
</h3>
Returns the base name of the file.
<p> If <em>complete</em> is FALSE (the default) the base name consists of
all characters in the file name up to (but not including) the <em>first</em> '.' character.
<p> If <em>complete</em> is TRUE the base name consists of all characters in
the file up to (but not including) the <em>last</em> '.' character.
<p> The path is not included in either case.
<p> Example:
<pre>
TQFileInfo fi( "/tmp/archive.tar.gz" );
<a href="tqstring.html">TQString</a> base = fi.<a href="#baseName">baseName</a>(); // base = "archive"
base = fi.<a href="#baseName">baseName</a>( TRUE ); // base = "archive.tar"
</pre>
<p> <p>See also <a href="#fileName">fileName</a>() and <a href="#extension">extension</a>().
<h3 class=fn>bool <a name="caching"></a>TQFileInfo::caching () const
</h3>
<p> Returns TRUE if caching is enabled; otherwise returns FALSE.
<p> <p>See also <a href="#setCaching">setCaching</a>() and <a href="#refresh">refresh</a>().
<h3 class=fn>bool <a name="convertToAbs"></a>TQFileInfo::convertToAbs ()
</h3>
Converts the file's path to an absolute path.
<p> If it is already absolute, nothing is done.
<p> <p>See also <a href="#filePath">filePath</a>() and <a href="#isRelative">isRelative</a>().
<h3 class=fn><a href="tqdatetime.html">TQDateTime</a> <a name="created"></a>TQFileInfo::created () const
</h3>
Returns the date and time when the file was created.
<p> On platforms where this information is not available, returns the
same as <a href="#lastModified">lastModified</a>().
<p> <p>See also <a href="#lastModified">lastModified</a>() and <a href="#lastRead">lastRead</a>().
<h3 class=fn><a href="tqdir.html">TQDir</a> <a name="dir"></a>TQFileInfo::dir ( bool absPath = FALSE ) const
</h3>
Returns the file's path as a <a href="tqdir.html">TQDir</a> object.
<p> If the TQFileInfo is relative and <em>absPath</em> is FALSE, the TQDir
will be relative; otherwise it will be absolute.
<p> <p>See also <a href="#dirPath">dirPath</a>(), <a href="#filePath">filePath</a>(), <a href="#fileName">fileName</a>(), and <a href="#isRelative">isRelative</a>().
<p>Example: <a href="fileiconview-example.html#x821">fileiconview/tqfileiconview.cpp</a>.
<h3 class=fn><a href="tqstring.html">TQString</a> <a name="dirPath"></a>TQFileInfo::dirPath ( bool absPath = FALSE ) const
</h3>
Returns the file's path.
<p> If <em>absPath</em> is TRUE an absolute path is returned.
<p> <p>See also <a href="#dir">dir</a>(), <a href="#filePath">filePath</a>(), <a href="#fileName">fileName</a>(), and <a href="#isRelative">isRelative</a>().
<p>Example: <a href="fileiconview-example.html#x822">fileiconview/tqfileiconview.cpp</a>.
<h3 class=fn>bool <a name="exists"></a>TQFileInfo::exists () const
</h3>
Returns TRUE if the file exists; otherwise returns FALSE.
<p>Examples: <a href="biff-example.html#x1955">biff/biff.cpp</a>, <a href="distributor-example.html#x2661">distributor/distributor.ui.h</a>, and <a href="i18n-example.html#x1937">i18n/main.cpp</a>.
<h3 class=fn><a href="tqstring.html">TQString</a> <a name="extension"></a>TQFileInfo::extension ( bool complete = TRUE ) const
</h3>
Returns the file's extension name.
<p> If <em>complete</em> is TRUE (the default), <a href="#extension">extension</a>() returns the
string of all characters in the file name after (but not
including) the first '.' character.
<p> If <em>complete</em> is FALSE, extension() returns the string of all
characters in the file name after (but not including) the last '.'
character.
<p> Example:
<pre>
TQFileInfo fi( "/tmp/archive.tar.gz" );
<a href="tqstring.html">TQString</a> ext = fi.<a href="#extension">extension</a>(); // ext = "tar.gz"
ext = fi.<a href="#extension">extension</a>( FALSE ); // ext = "gz"
</pre>
<p> <p>See also <a href="#fileName">fileName</a>() and <a href="#baseName">baseName</a>().
<p>Example: <a href="tqdir-example.html#x1823">tqdir/tqdir.cpp</a>.
<h3 class=fn><a href="tqstring.html">TQString</a> <a name="fileName"></a>TQFileInfo::fileName () const
</h3>
Returns the name of the file, excluding the path.
<p> Example:
<pre>
TQFileInfo fi( "/tmp/archive.tar.gz" );
<a href="tqstring.html">TQString</a> name = fi.<a href="#fileName">fileName</a>(); // name = "archive.tar.gz"
</pre>
<p> <p>See also <a href="#isRelative">isRelative</a>(), <a href="#filePath">filePath</a>(), <a href="#baseName">baseName</a>(), and <a href="#extension">extension</a>().
<p>Examples: <a href="dirview-example.html#x1675">dirview/dirview.cpp</a>, <a href="fileiconview-example.html#x823">fileiconview/tqfileiconview.cpp</a>, and <a href="ftpclient-example.html#x743">network/ftpclient/ftpmainwindow.ui.h</a>.
<h3 class=fn><a href="tqstring.html">TQString</a> <a name="filePath"></a>TQFileInfo::filePath () const
</h3>
Returns the file name, including the path (which may be absolute
or relative).
<p> <p>See also <a href="#isRelative">isRelative</a>() and <a href="#absFilePath">absFilePath</a>().
<p>Examples: <a href="dirview-example.html#x1713">dirview/main.cpp</a> and <a href="fileiconview-example.html#x824">fileiconview/tqfileiconview.cpp</a>.
<h3 class=fn><a href="tqstring.html">TQString</a> <a name="group"></a>TQFileInfo::group () const
</h3>
Returns the group of the file. On Windows, on systems where files
do not have groups, or if an error occurs, <a href="tqstring.html#TQString-null">TQString::null</a> is
returned.
<p> This function can be time consuming under Unix (in the order of
milliseconds).
<p> <p>See also <a href="#groupId">groupId</a>(), <a href="#owner">owner</a>(), and <a href="#ownerId">ownerId</a>().
<h3 class=fn>uint <a name="groupId"></a>TQFileInfo::groupId () const
</h3>
Returns the id of the group the file belongs to.
<p> On Windows and on systems where files do not have groups this
function always returns (uint) -2.
<p> <p>See also <a href="#group">group</a>(), <a href="#owner">owner</a>(), and <a href="#ownerId">ownerId</a>().
<h3 class=fn>bool <a name="isDir"></a>TQFileInfo::isDir () const
</h3>
Returns TRUE if this object points to a directory or to a symbolic
link to a directory; otherwise returns FALSE.
<p> <p>See also <a href="#isFile">isFile</a>() and <a href="#isSymLink">isSymLink</a>().
<p>Examples: <a href="dirview-example.html#x1676">dirview/dirview.cpp</a> and <a href="fileiconview-example.html#x825">fileiconview/tqfileiconview.cpp</a>.
<h3 class=fn>bool <a name="isExecutable"></a>TQFileInfo::isExecutable () const
</h3>
Returns TRUE if the file is executable; otherwise returns FALSE.
<p> <p>See also <a href="#isReadable">isReadable</a>(), <a href="#isWritable">isWritable</a>(), and <a href="#permission">permission</a>().
<h3 class=fn>bool <a name="isFile"></a>TQFileInfo::isFile () const
</h3>
Returns TRUE if this object points to a file. Returns FALSE if the
object points to something which isn't a file, e.g. a directory or
a symlink.
<p> <p>See also <a href="#isDir">isDir</a>() and <a href="#isSymLink">isSymLink</a>().
<p>Examples: <a href="dirview-example.html#x1677">dirview/dirview.cpp</a>, <a href="distributor-example.html#x2662">distributor/distributor.ui.h</a>, <a href="fileiconview-example.html#x826">fileiconview/tqfileiconview.cpp</a>, and <a href="tqdir-example.html#x1824">tqdir/tqdir.cpp</a>.
<h3 class=fn>bool <a name="isHidden"></a>TQFileInfo::isHidden () const
</h3>
Returns TRUE if the file is hidden; otherwise returns FALSE.
<p> On Unix-like operating systems, including Mac OS X, a file is
hidden if its name begins with ".". On Windows a file is hidden if
its hidden attribute is set.
<h3 class=fn>bool <a name="isReadable"></a>TQFileInfo::isReadable () const
</h3>
Returns TRUE if the file is readable; otherwise returns FALSE.
<p> <p>See also <a href="#isWritable">isWritable</a>(), <a href="#isExecutable">isExecutable</a>(), and <a href="#permission">permission</a>().
<p>Example: <a href="distributor-example.html#x2663">distributor/distributor.ui.h</a>.
<h3 class=fn>bool <a name="isRelative"></a>TQFileInfo::isRelative () const
</h3>
Returns TRUE if the file path name is relative. Returns FALSE if
the path is absolute (e.g. under Unix a path is absolute if it
begins with a "/").
<h3 class=fn>bool <a name="isSymLink"></a>TQFileInfo::isSymLink () const
</h3>
Returns TRUE if this object points to a symbolic link (or to a
shortcut on Windows, or an alias on Mac OS X); otherwise returns
FALSE.
<p> <p>See also <a href="#isFile">isFile</a>(), <a href="#isDir">isDir</a>(), and <a href="#readLink">readLink</a>().
<p>Examples: <a href="dirview-example.html#x1678">dirview/dirview.cpp</a>, <a href="distributor-example.html#x2664">distributor/distributor.ui.h</a>, and <a href="fileiconview-example.html#x827">fileiconview/tqfileiconview.cpp</a>.
<h3 class=fn>bool <a name="isWritable"></a>TQFileInfo::isWritable () const
</h3>
Returns TRUE if the file is writable; otherwise returns FALSE.
<p> <p>See also <a href="#isReadable">isReadable</a>(), <a href="#isExecutable">isExecutable</a>(), and <a href="#permission">permission</a>().
<p>Example: <a href="distributor-example.html#x2665">distributor/distributor.ui.h</a>.
<h3 class=fn><a href="tqdatetime.html">TQDateTime</a> <a name="lastModified"></a>TQFileInfo::lastModified () const
</h3>
Returns the date and time when the file was last modified.
<p> <p>See also <a href="#created">created</a>() and <a href="#lastRead">lastRead</a>().
<p>Example: <a href="biff-example.html#x1956">biff/biff.cpp</a>.
<h3 class=fn><a href="tqdatetime.html">TQDateTime</a> <a name="lastRead"></a>TQFileInfo::lastRead () const
</h3>
Returns the date and time when the file was last read (accessed).
<p> On platforms where this information is not available, returns the
same as <a href="#lastModified">lastModified</a>().
<p> <p>See also <a href="#created">created</a>() and <a href="#lastModified">lastModified</a>().
<p>Example: <a href="biff-example.html#x1957">biff/biff.cpp</a>.
<h3 class=fn><a href="tqfileinfo.html">TQFileInfo</a> & <a name="operator-eq"></a>TQFileInfo::operator= ( const <a href="tqfileinfo.html">TQFileInfo</a> & fi )
</h3>
Makes a copy of <em>fi</em> and assigns it to this TQFileInfo.
<h3 class=fn><a href="tqstring.html">TQString</a> <a name="owner"></a>TQFileInfo::owner () const
</h3>
Returns the owner of the file. On systems where files
do not have owners, or if an error occurs, <a href="tqstring.html#TQString-null">TQString::null</a> is
returned.
<p> This function can be time consuming under Unix (in the order of
milliseconds).
<p> <p>See also <a href="#ownerId">ownerId</a>(), <a href="#group">group</a>(), and <a href="#groupId">groupId</a>().
<h3 class=fn>uint <a name="ownerId"></a>TQFileInfo::ownerId () const
</h3>
Returns the id of the owner of the file.
<p> On Windows and on systems where files do not have owners this
function returns ((uint) -2).
<p> <p>See also <a href="#owner">owner</a>(), <a href="#group">group</a>(), and <a href="#groupId">groupId</a>().
<h3 class=fn>bool <a name="permission"></a>TQFileInfo::permission ( int permissionSpec ) const
</h3>
Tests for file permissions. The <em>permissionSpec</em> argument can be
several flags of type <a href="#PermissionSpec-enum">PermissionSpec</a> OR-ed together to check
for permission combinations.
<p> On systems where files do not have permissions this function
always returns TRUE.
<p> Example:
<pre>
TQFileInfo fi( "/tmp/archive.tar.gz" );
if ( fi.<a href="#permission">permission</a>( TQFileInfo::<a href="#PermissionSpec-enum">WriteUser</a> | TQFileInfo::<a href="#PermissionSpec-enum">ReadGroup</a> ) )
<a href="ntqapplication.html#qWarning">tqWarning</a>( "I can change the file; my group can read the file" );
if ( fi.<a href="#permission">permission</a>( TQFileInfo::<a href="#PermissionSpec-enum">WriteGroup</a> | TQFileInfo::<a href="#PermissionSpec-enum">WriteOther</a> ) )
<a href="ntqapplication.html#qWarning">tqWarning</a>( "The group or others can change the file" );
</pre>
<p> <p>See also <a href="#isReadable">isReadable</a>(), <a href="#isWritable">isWritable</a>(), and <a href="#isExecutable">isExecutable</a>().
<h3 class=fn><a href="tqstring.html">TQString</a> <a name="readLink"></a>TQFileInfo::readLink () const
</h3>
Returns the name a symlink (or shortcut on Windows) points to, or
a <a href="tqstring.html#TQString-null">TQString::null</a> if the object isn't a symbolic link.
<p> This name may not represent an existing file; it is only a string.
<a href="#exists">TQFileInfo::exists</a>() returns TRUE if the symlink points to an
existing file.
<p> <p>See also <a href="#exists">exists</a>(), <a href="#isSymLink">isSymLink</a>(), <a href="#isDir">isDir</a>(), and <a href="#isFile">isFile</a>().
<h3 class=fn>void <a name="refresh"></a>TQFileInfo::refresh () const
</h3>
Refreshes the information about the file, i.e. reads in information
from the file system the next time a cached property is fetched.
<p> <p>See also <a href="#setCaching">setCaching</a>().
<h3 class=fn>void <a name="setCaching"></a>TQFileInfo::setCaching ( bool enable )
</h3>
If <em>enable</em> is TRUE, enables caching of file information. If <em>enable</em> is FALSE caching is disabled.
<p> When caching is enabled, TQFileInfo reads the file information from
the file system the first time it's needed, but generally not
later.
<p> Caching is enabled by default.
<p> <p>See also <a href="#refresh">refresh</a>() and <a href="#caching">caching</a>().
<h3 class=fn>void <a name="setFile"></a>TQFileInfo::setFile ( const <a href="tqstring.html">TQString</a> & file )
</h3>
Sets the file that the TQFileInfo provides information about to <em>file</em>.
<p> The <em>file</em> can also include an absolute or relative file path.
Absolute paths begin with the directory separator (e.g. "/" under
Unix) or a drive specification (under Windows). Relative file
names begin with a directory name or a file name and specify a
path relative to the current directory.
<p> Example:
<pre>
<a href="tqstring.html">TQString</a> absolute = "/local/bin";
<a href="tqstring.html">TQString</a> relative = "local/bin";
TQFileInfo absFile( absolute );
TQFileInfo relFile( relative );
TQDir::<a href="tqdir.html#setCurrent">setCurrent</a>( TQDir::<a href="tqdir.html#rootDirPath">rootDirPath</a>() );
// absFile and relFile now point to the same file
TQDir::<a href="tqdir.html#setCurrent">setCurrent</a>( "/tmp" );
// absFile now points to "/local/bin",
// while relFile points to "/tmp/local/bin"
</pre>
<p> <p>See also <a href="#isRelative">isRelative</a>(), <a href="tqdir.html#setCurrent">TQDir::setCurrent</a>(), and <a href="tqdir.html#isRelativePath">TQDir::isRelativePath</a>().
<p>Example: <a href="biff-example.html#x1958">biff/biff.cpp</a>.
<h3 class=fn>void <a name="setFile-2"></a>TQFileInfo::setFile ( const <a href="tqfile.html">TQFile</a> & file )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Sets the file that the TQFileInfo provides information about to <em>file</em>.
<p> If <em>file</em> includes a relative path, the TQFileInfo will also have
a relative path.
<p> <p>See also <a href="#isRelative">isRelative</a>().
<h3 class=fn>void <a name="setFile-3"></a>TQFileInfo::setFile ( const <a href="tqdir.html">TQDir</a> & d, const <a href="tqstring.html">TQString</a> & fileName )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Sets the file that the TQFileInfo provides information about to <em>fileName</em> in directory <em>d</em>.
<p> If <em>fileName</em> includes a relative path, the TQFileInfo will also
have a relative path.
<p> <p>See also <a href="#isRelative">isRelative</a>().
<h3 class=fn>uint <a name="size"></a>TQFileInfo::size () const
</h3>
Returns the file size in bytes, or 0 if the file does not exist or
if the size is 0 or if the size cannot be fetched.
<p>Example: <a href="tqdir-example.html#x1825">tqdir/tqdir.cpp</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>
|
