File: PeasEngine.html

package info (click to toggle)
libpeas 1.4.0-2
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 5,328 kB
  • sloc: sh: 11,723; ansic: 11,717; makefile: 938; python: 54; xml: 27
file content (822 lines) | stat: -rw-r--r-- 53,630 bytes parent folder | download
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
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>PeasEngine</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="index.html" title="Peas Reference Manual">
<link rel="up" href="ch01.html" title="Core Classes">
<link rel="prev" href="ch01.html" title="Core Classes">
<link rel="next" href="PeasPluginInfo.html" title="PeasPluginInfo">
<meta name="generator" content="GTK-Doc V1.18.1 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2">
<tr valign="middle">
<td><a accesskey="p" href="ch01.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
<td><a accesskey="u" href="ch01.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
<th width="100%" align="center">Peas Reference Manual</th>
<td><a accesskey="n" href="PeasPluginInfo.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
</tr>
<tr><td colspan="5" class="shortcuts">
<a href="#PeasEngine.synopsis" class="shortcut">Top</a>
                   | 
                  <a href="#PeasEngine.description" class="shortcut">Description</a>
                   | 
                  <a href="#PeasEngine.object-hierarchy" class="shortcut">Object Hierarchy</a>
                   | 
                  <a href="#PeasEngine.properties" class="shortcut">Properties</a>
                   | 
                  <a href="#PeasEngine.signals" class="shortcut">Signals</a>
</td></tr>
</table>
<div class="refentry">
<a name="PeasEngine"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="PeasEngine.top_of_page"></a>PeasEngine</span></h2>
<p>PeasEngine — Engine at the heart of the Peas plugin system.</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="PeasEngine.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">struct              <a class="link" href="PeasEngine.html#PeasEngine-struct" title="struct PeasEngine">PeasEngine</a>;
struct              <a class="link" href="PeasEngine.html#PeasEngineClass" title="struct PeasEngineClass">PeasEngineClass</a>;
<a class="link" href="PeasEngine.html" title="PeasEngine"><span class="returnvalue">PeasEngine</span></a> *        <a class="link" href="PeasEngine.html#peas-engine-new" title="peas_engine_new ()">peas_engine_new</a>                     (<em class="parameter"><code><span class="type">void</span></code></em>);
<a class="link" href="PeasEngine.html" title="PeasEngine"><span class="returnvalue">PeasEngine</span></a> *        <a class="link" href="PeasEngine.html#peas-engine-get-default" title="peas_engine_get_default ()">peas_engine_get_default</a>             (<em class="parameter"><code><span class="type">void</span></code></em>);
<span class="returnvalue">void</span>                <a class="link" href="PeasEngine.html#peas-engine-add-search-path" title="peas_engine_add_search_path ()">peas_engine_add_search_path</a>         (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *module_dir</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *data_dir</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="PeasEngine.html#peas-engine-enable-loader" title="peas_engine_enable_loader ()">peas_engine_enable_loader</a>           (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *loader_id</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="PeasEngine.html#peas-engine-rescan-plugins" title="peas_engine_rescan_plugins ()">peas_engine_rescan_plugins</a>          (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>);
const <span class="returnvalue">GList</span> *       <a class="link" href="PeasEngine.html#peas-engine-get-plugin-list" title="peas_engine_get_plugin_list ()">peas_engine_get_plugin_list</a>         (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>);
<span class="returnvalue">gchar</span> **            <a class="link" href="PeasEngine.html#peas-engine-get-loaded-plugins" title="peas_engine_get_loaded_plugins ()">peas_engine_get_loaded_plugins</a>      (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="PeasEngine.html#peas-engine-set-loaded-plugins" title="peas_engine_set_loaded_plugins ()">peas_engine_set_loaded_plugins</a>      (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> **plugin_names</code></em>);
<a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="returnvalue">PeasPluginInfo</span></a> *    <a class="link" href="PeasEngine.html#peas-engine-get-plugin-info" title="peas_engine_get_plugin_info ()">peas_engine_get_plugin_info</a>         (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *plugin_name</code></em>);
<span class="returnvalue">gboolean</span>            <a class="link" href="PeasEngine.html#peas-engine-load-plugin" title="peas_engine_load_plugin ()">peas_engine_load_plugin</a>             (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>);
<span class="returnvalue">gboolean</span>            <a class="link" href="PeasEngine.html#peas-engine-unload-plugin" title="peas_engine_unload_plugin ()">peas_engine_unload_plugin</a>           (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="PeasEngine.html#peas-engine-garbage-collect" title="peas_engine_garbage_collect ()">peas_engine_garbage_collect</a>         (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>);
<span class="returnvalue">gboolean</span>            <a class="link" href="PeasEngine.html#peas-engine-provides-extension" title="peas_engine_provides_extension ()">peas_engine_provides_extension</a>      (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>,
                                                         <em class="parameter"><code><span class="type">GType</span> extension_type</code></em>);
<a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="returnvalue">PeasExtension</span></a> *     <a class="link" href="PeasEngine.html#peas-engine-create-extension" title="peas_engine_create_extension ()">peas_engine_create_extension</a>        (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>,
                                                         <em class="parameter"><code><span class="type">GType</span> extension_type</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *first_property</code></em>,
                                                         <em class="parameter"><code>...</code></em>);
<a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="returnvalue">PeasExtension</span></a> *     <a class="link" href="PeasEngine.html#peas-engine-create-extensionv" title="peas_engine_create_extensionv ()">peas_engine_create_extensionv</a>       (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>,
                                                         <em class="parameter"><code><span class="type">GType</span> extension_type</code></em>,
                                                         <em class="parameter"><code><span class="type">guint</span> n_parameters</code></em>,
                                                         <em class="parameter"><code><span class="type">GParameter</span> *parameters</code></em>);
<a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="returnvalue">PeasExtension</span></a> *     <a class="link" href="PeasEngine.html#peas-engine-create-extension-valist" title="peas_engine_create_extension_valist ()">peas_engine_create_extension_valist</a> (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>,
                                                         <em class="parameter"><code><span class="type">GType</span> extension_type</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *first_property</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> var_args</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="PeasEngine.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
  GObject
   +----PeasEngine
</pre>
</div>
<div class="refsect1">
<a name="PeasEngine.properties"></a><h2>Properties</h2>
<pre class="synopsis">
  "<a class="link" href="PeasEngine.html#PeasEngine--loaded-plugins" title='The "loaded-plugins" property'>loaded-plugins</a>"           <span class="type">GStrv</span>                 : Read / Write
  "<a class="link" href="PeasEngine.html#PeasEngine--plugin-list" title='The "plugin-list" property'>plugin-list</a>"              <span class="type">gpointer</span>              : Read
</pre>
</div>
<div class="refsect1">
<a name="PeasEngine.signals"></a><h2>Signals</h2>
<pre class="synopsis">
  "<a class="link" href="PeasEngine.html#PeasEngine-load-plugin" title='The "load-plugin" signal'>load-plugin</a>"                                    : <code class="literal">Run Last</code>
  "<a class="link" href="PeasEngine.html#PeasEngine-unload-plugin" title='The "unload-plugin" signal'>unload-plugin</a>"                                  : <code class="literal">Run Last</code>
</pre>
</div>
<div class="refsect1">
<a name="PeasEngine.description"></a><h2>Description</h2>
<p>
The <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> is the object which manages the plugins.
</p>
<p>
Its role is twofold:
</p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem"><p>it will fetch all the information about the available plugins
    from all the registered plugin directories;</p></li>
<li class="listitem"><p>it will provide you an API to load, control and unload your
    plugins and their extensions from within your application.</p></li>
</ul></div>
<p>
</p>
</div>
<div class="refsect1">
<a name="PeasEngine.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="PeasEngine-struct"></a><h3>struct PeasEngine</h3>
<pre class="programlisting">struct PeasEngine;</pre>
<p>
The <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> structure contains only private data and should only be
accessed using the provided API.
</p>
</div>
<hr>
<div class="refsect2">
<a name="PeasEngineClass"></a><h3>struct PeasEngineClass</h3>
<pre class="programlisting">struct PeasEngineClass {
  GObjectClass parent_class;

  void     (*load_plugin)                 (PeasEngine     *engine,
                                           PeasPluginInfo *info);

  void     (*unload_plugin)               (PeasEngine     *engine,
                                           PeasPluginInfo *info);
};
</pre>
<p>
Class structure for <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><span class="type">GObjectClass</span> <em class="structfield"><code><a name="PeasEngineClass.parent-class"></a>parent_class</code></em>;</span></p></td>
<td>The parent class.</td>
</tr>
<tr>
<td><p><span class="term"><em class="structfield"><code><a name="PeasEngineClass.load-plugin"></a>load_plugin</code></em> ()</span></p></td>
<td>Signal class handler for the <a class="link" href="PeasEngine.html#PeasEngine-load-plugin" title='The "load-plugin" signal'><span class="type">"load-plugin"</span></a> signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="structfield"><code><a name="PeasEngineClass.unload-plugin"></a>unload_plugin</code></em> ()</span></p></td>
<td>Signal class handler for the <a class="link" href="PeasEngine.html#PeasEngine-unload-plugin" title='The "unload-plugin" signal'><span class="type">"unload-plugin"</span></a> signal.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-new"></a><h3>peas_engine_new ()</h3>
<pre class="programlisting"><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="returnvalue">PeasEngine</span></a> *        peas_engine_new                     (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Return a new instance of <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.
If no default <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> has been instantiated yet,
the first call of this function will set the default
engine as the new instance of <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new instance of <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-get-default"></a><h3>peas_engine_get_default ()</h3>
<pre class="programlisting"><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="returnvalue">PeasEngine</span></a> *        peas_engine_get_default             (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
Return the existing instance of <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> or a subclass of it.
If no <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> subclass has been instantiated yet, the first call
of this function will return a new instance of <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the existing instance of <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>. <span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-add-search-path"></a><h3>peas_engine_add_search_path ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                peas_engine_add_search_path         (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *module_dir</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *data_dir</code></em>);</pre>
<p>
This function appends a search path to the list of paths where to
look for plugins.
</p>
<p>
A so-called "search path" actually consists of both a
module directory (where the shared libraries or language modules
lie) and a data directory (where the plugin data is).
</p>
<p>
The plugin will be able to use a correct data dir depending on
where it is installed, hence allowing to keep the plugin agnostic
when it comes to installation location: the same plugin can be
installed either in the system path or in the user's home directory,
without taking other special care than using
<a class="link" href="PeasPluginInfo.html#peas-plugin-info-get-data-dir" title="peas_plugin_info_get_data_dir ()"><code class="function">peas_plugin_info_get_data_dir()</code></a> when looking for its data files.
</p>
<p>
If <em class="parameter"><code>data_dir</code></em> is <code class="literal">NULL</code>, then it is set to the same value as
<em class="parameter"><code>module_dir</code></em>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>module_dir</code></em> :</span></p></td>
<td>the plugin module directory.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>data_dir</code></em> :</span></p></td>
<td>the plugin data directory. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-enable-loader"></a><h3>peas_engine_enable_loader ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                peas_engine_enable_loader           (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *loader_id</code></em>);</pre>
<p>
Enable a loader, enables a loader for plugins.
The C plugin loader is always enabled.
</p>
<p>
For instance, the following code will enable python plugin
from being loaded:
</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1</pre></td>
        <td class="listing_code"><pre class="programlisting"><span class="function"><a href="PeasEngine.html#peas-engine-enable-loader">peas_engine_enable_loader</a></span> <span class="gtkdoc opt">(</span>engine<span class="gtkdoc opt">,</span> <span class="string">&quot;python&quot;</span><span class="gtkdoc opt">);</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p>
</p>
<p>
Note: plugin loaders are shared across <a href="PeasEngine.html"><span class="type">PeasEngines</span></a> so enabling
      a loader on one <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> will enable it on all <a href="PeasEngine.html"><span class="type">PeasEngines</span></a>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>loader_id</code></em> :</span></p></td>
<td>The id of the loader to enable.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-rescan-plugins"></a><h3>peas_engine_rescan_plugins ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                peas_engine_rescan_plugins          (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>);</pre>
<p>
Rescan all the registered directories to find new or updated plugins.
</p>
<p>
Calling this function will make the newly installed plugin infos
be loaded by the engine, so the new plugins can be used without
restarting the application.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-get-plugin-list"></a><h3>peas_engine_get_plugin_list ()</h3>
<pre class="programlisting">const <span class="returnvalue">GList</span> *       peas_engine_get_plugin_list         (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>);</pre>
<p>
Returns the list of <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> known to the engine.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a <span class="type">GList</span> of
<a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a>. Note that the list belongs to the engine and should
not be freed. <span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> Peas.PluginInfo]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-get-loaded-plugins"></a><h3>peas_engine_get_loaded_plugins ()</h3>
<pre class="programlisting"><span class="returnvalue">gchar</span> **            peas_engine_get_loaded_plugins      (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>);</pre>
<p>
Returns the list of the names of all the loaded plugins, or an array
containing a single <code class="literal">NULL</code> element if there is no plugin currently loaded.
</p>
<p>
Please note that the returned array is a newly allocated one: you will need
to free it using <code class="function">g_strfreev()</code>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A newly-allocated
<code class="literal">NULL</code>-terminated array of strings. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> zero-terminated=1]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-set-loaded-plugins"></a><h3>peas_engine_set_loaded_plugins ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                peas_engine_set_loaded_plugins      (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> **plugin_names</code></em>);</pre>
<p>
Sets the list of loaded plugins for <em class="parameter"><code>engine</code></em>. When this function is called,
the <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> will load all the plugins whose names are in <em class="parameter"><code>plugin_names</code></em>,
and ensures all other active plugins are unloaded.
</p>
<p>
If <em class="parameter"><code>plugin_names</code></em> is <code class="literal">NULL</code>, all plugins will be unloaded.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>plugin_names</code></em> :</span></p></td>
<td>A <code class="literal">NULL</code>-terminated
array of plugin names, or <code class="literal">NULL</code>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>][<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> zero-terminated=1]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-get-plugin-info"></a><h3>peas_engine_get_plugin_info ()</h3>
<pre class="programlisting"><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="returnvalue">PeasPluginInfo</span></a> *    peas_engine_get_plugin_info         (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *plugin_name</code></em>);</pre>
<p>
Gets the <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> corresponding with <em class="parameter"><code>plugin_name</code></em>,
or <code class="literal">NULL</code> if <em class="parameter"><code>plugin_name</code></em> was not found.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>plugin_name</code></em> :</span></p></td>
<td>A plugin name.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> corresponding with
a given plugin module name. <span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-load-plugin"></a><h3>peas_engine_load_plugin ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>            peas_engine_load_plugin             (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>);</pre>
<p>
Loads the plugin corresponding to <em class="parameter"><code>info</code></em> if it's not currently loaded.
Emits the "load-plugin" signal; loading the plugin
actually occurs in the default signal handler.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
<td>A <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>whether the plugin has been successfully loaded.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-unload-plugin"></a><h3>peas_engine_unload_plugin ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>            peas_engine_unload_plugin           (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>);</pre>
<p>
Unloads the plugin corresponding to <em class="parameter"><code>info</code></em>.
Emits the "unload-plugin" signal; unloading the plugin
actually occurs in the default signal handler.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
<td>A <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>whether the plugin has been successfully unloaded.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-garbage-collect"></a><h3>peas_engine_garbage_collect ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                peas_engine_garbage_collect         (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>);</pre>
<p>
This function triggers garbage collection on all the loaders currently
owned by the <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.  This can be used to force the loaders to destroy
managed objects that still hold references to objects that are about to
disappear.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-provides-extension"></a><h3>peas_engine_provides_extension ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span>            peas_engine_provides_extension      (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>,
                                                         <em class="parameter"><code><span class="type">GType</span> extension_type</code></em>);</pre>
<p>
Returns if <em class="parameter"><code>info</code></em> provides an extension for <em class="parameter"><code>extension_type</code></em>.
If the <em class="parameter"><code>info</code></em> is not loaded than <code class="literal">FALSE</code> will always be returned.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
<td>A <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>extension_type</code></em> :</span></p></td>
<td>The extension <span class="type">GType</span>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>if <em class="parameter"><code>info</code></em> provides an extension for <em class="parameter"><code>extension_type</code></em>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-create-extension"></a><h3>peas_engine_create_extension ()</h3>
<pre class="programlisting"><a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="returnvalue">PeasExtension</span></a> *     peas_engine_create_extension        (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>,
                                                         <em class="parameter"><code><span class="type">GType</span> extension_type</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *first_property</code></em>,
                                                         <em class="parameter"><code>...</code></em>);</pre>
<p>
If the plugin identified by <em class="parameter"><code>info</code></em> implements the <em class="parameter"><code>extension_type</code></em> interface,
then this function will return a new instance of this implementation,
wrapped in a new <a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="type">PeasExtension</span></a> instance. Otherwise, it will return <code class="literal">NULL</code>.
</p>
<p>
When creating the new instance of the <em class="parameter"><code>extension_type</code></em> subtype, the
provided construct properties will be passed to the extension construction
handler (exactly like if you had called <code class="function">g_object_new()</code> yourself).
</p>
<p>
The new extension instance produced by this function will always be
returned wrapped in a <a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="type">PeasExtension</span></a> proxy, following the current libpeas
principle of never giving you the actual object (also because it might as
well *not* be an actual object).
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
<td>A loaded <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>extension_type</code></em> :</span></p></td>
<td>The implemented extension <span class="type">GType</span>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>first_property</code></em> :</span></p></td>
<td>the name of the first property.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>the value of the first property, followed optionally by more
name/value pairs, followed by <code class="literal">NULL</code>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new instance of <a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="type">PeasExtension</span></a> wrapping
the <em class="parameter"><code>extension_type</code></em> instance, or <code class="literal">NULL</code>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-create-extensionv"></a><h3>peas_engine_create_extensionv ()</h3>
<pre class="programlisting"><a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="returnvalue">PeasExtension</span></a> *     peas_engine_create_extensionv       (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>,
                                                         <em class="parameter"><code><span class="type">GType</span> extension_type</code></em>,
                                                         <em class="parameter"><code><span class="type">guint</span> n_parameters</code></em>,
                                                         <em class="parameter"><code><span class="type">GParameter</span> *parameters</code></em>);</pre>
<p>
If the plugin identified by <em class="parameter"><code>info</code></em> implements the <em class="parameter"><code>extension_type</code></em> interface,
then this function will return a new instance of this implementation,
wrapped in a new <a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="type">PeasExtension</span></a> instance. Otherwise, it will return <code class="literal">NULL</code>.
</p>
<p>
See <a class="link" href="PeasEngine.html#peas-engine-create-extension" title="peas_engine_create_extension ()"><code class="function">peas_engine_create_extension()</code></a> for more information.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
<td>A loaded <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>extension_type</code></em> :</span></p></td>
<td>The implemented extension <span class="type">GType</span>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n_parameters</code></em> :</span></p></td>
<td>the length of the <em class="parameter"><code>parameters</code></em> array.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>parameters</code></em> :</span></p></td>
<td>an array of <span class="type">GParameter</span>. <span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>][<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=n_parameters]</span>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new instance of <a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="type">PeasExtension</span></a> wrapping
the <em class="parameter"><code>extension_type</code></em> instance, or <code class="literal">NULL</code>.
Rename to: peas_engine_create_extension. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="peas-engine-create-extension-valist"></a><h3>peas_engine_create_extension_valist ()</h3>
<pre class="programlisting"><a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="returnvalue">PeasExtension</span></a> *     peas_engine_create_extension_valist (<em class="parameter"><code><a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a> *engine</code></em>,
                                                         <em class="parameter"><code><a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info</code></em>,
                                                         <em class="parameter"><code><span class="type">GType</span> extension_type</code></em>,
                                                         <em class="parameter"><code>const <span class="type">gchar</span> *first_property</code></em>,
                                                         <em class="parameter"><code><span class="type">va_list</span> var_args</code></em>);</pre>
<p>
If the plugin identified by <em class="parameter"><code>info</code></em> implements the <em class="parameter"><code>extension_type</code></em> interface,
then this function will return a new instance of this implementation,
wrapped in a new <a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="type">PeasExtension</span></a> instance. Otherwise, it will return <code class="literal">NULL</code>.
</p>
<p>
See <a class="link" href="PeasEngine.html#peas-engine-create-extension" title="peas_engine_create_extension ()"><code class="function">peas_engine_create_extension()</code></a> for more information.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
<td>A loaded <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>extension_type</code></em> :</span></p></td>
<td>The implemented extension <span class="type">GType</span>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>first_property</code></em> :</span></p></td>
<td>the name of the first property.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>var_args</code></em> :</span></p></td>
<td>the value of the first property, followed optionally by more
name/value pairs, followed by <code class="literal">NULL</code>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new instance of <a class="link" href="libpeas-PeasExtension.html#PeasExtension" title="PeasExtension"><span class="type">PeasExtension</span></a> wrapping
the <em class="parameter"><code>extension_type</code></em> instance, or <code class="literal">NULL</code>.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1">
<a name="PeasEngine.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="PeasEngine--loaded-plugins"></a><h3>The <code class="literal">"loaded-plugins"</code> property</h3>
<pre class="programlisting">  "loaded-plugins"           <span class="type">GStrv</span>                 : Read / Write</pre>
<p>
The list of loaded plugins.
</p>
<p>
This will be modified when <a class="link" href="PeasEngine.html#peas-engine-load-plugin" title="peas_engine_load_plugin ()"><code class="function">peas_engine_load_plugin()</code></a> or
<a class="link" href="PeasEngine.html#peas-engine-unload-plugin" title="peas_engine_unload_plugin ()"><code class="function">peas_engine_unload_plugin()</code></a> is called.
</p>
<p>
This can be used with GSettings to save the loaded plugins by binding
to this property after instantiating the engine by doing:
</p>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1
2
3
4
5</pre></td>
        <td class="listing_code"><pre class="programlisting"><span class="function">g_settings_bind</span> <span class="gtkdoc opt">(</span>gsettings_object<span class="gtkdoc opt">,</span>
                 LOADED_PLUGINS_KEY<span class="gtkdoc opt">,</span>
                 engine<span class="gtkdoc opt">,</span>
                 <span class="string">&quot;loaded-plugins&quot;</span><span class="gtkdoc opt">,</span>
                 G_SETTINGS_BIND_DEFAULT<span class="gtkdoc opt">);</span></pre></td>
      </tr>
    </tbody>
  </table>
</div>

<p>
</p>
<p>
Note: notify will not be called when the engine is being destroyed.
</p>
</div>
<hr>
<div class="refsect2">
<a name="PeasEngine--plugin-list"></a><h3>The <code class="literal">"plugin-list"</code> property</h3>
<pre class="programlisting">  "plugin-list"              <span class="type">gpointer</span>              : Read</pre>
<p>
The list of found plugins.
</p>
<p>
This will be modified when <a class="link" href="PeasEngine.html#peas-engine-rescan-plugins" title="peas_engine_rescan_plugins ()"><code class="function">peas_engine_rescan_plugins()</code></a> is called.
</p>
<p>
Note that the list belongs to the engine and should not be modified
or freed.
</p>
</div>
</div>
<div class="refsect1">
<a name="PeasEngine.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="PeasEngine-load-plugin"></a><h3>The <code class="literal">"load-plugin"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>     *engine,
                                                        <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info,
                                                        <span class="type">gpointer</span>        user_data)      : <code class="literal">Run Last</code></pre>
<p>
The load-plugin signal is emitted when a plugin is being loaded.
</p>
<p>
The plugin is being loaded in the default handler. Hence, if you want to
perform some action before the plugin is loaded, you should use
<code class="function">g_signal_connect()</code>, but if you want to perform some action *after* the
plugin is loaded (the most common case), you should use
<code class="function">g_signal_connect_after()</code>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
<td>A <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="PeasEngine-unload-plugin"></a><h3>The <code class="literal">"unload-plugin"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>     *engine,
                                                        <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a> *info,
                                                        <span class="type">gpointer</span>        user_data)      : <code class="literal">Run Last</code></pre>
<p>
The unload-plugin signal is emitted when a plugin is being unloaded.
</p>
<p>
The plugin is being unloaded in the default handler. Hence, if you want
to perform some action before the plugin is unloaded (the most common
case), you should use <code class="function">g_signal_connect()</code>, but if you want to perform some
action after the plugin is unloaded (the most common case), you should
use <code class="function">g_signal_connect_after()</code>.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>engine</code></em> :</span></p></td>
<td>A <a class="link" href="PeasEngine.html" title="PeasEngine"><span class="type">PeasEngine</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>info</code></em> :</span></p></td>
<td>A <a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1">
<a name="PeasEngine.see-also"></a><h2>See Also</h2>
<a class="link" href="PeasPluginInfo.html" title="PeasPluginInfo"><span class="type">PeasPluginInfo</span></a>
</div>
</div>
<div class="footer">
<hr>
          Generated by GTK-Doc V1.18.1</div>
</body>
</html>