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
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>FreeType-2.5.3 API Reference</title>
<style type="text/css">
body { font-family: Verdana, Geneva, Arial, Helvetica, serif;
color: #000000;
background: #FFFFFF; }
p { text-align: justify; }
h1 { text-align: center; }
li { text-align: justify; }
td { padding: 0 0.5em 0 0.5em; }
td.left { padding: 0 0.5em 0 0.5em;
text-align: left; }
a:link { color: #0000EF; }
a:visited { color: #51188E; }
a:hover { color: #FF0000; }
span.keyword { font-family: monospace;
text-align: left;
white-space: pre;
color: darkblue; }
pre.colored { color: blue; }
ul.empty { list-style-type: none; }
</style>
</head>
<body>
<table align=center><tr><td><font size=-1>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-1>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<center><h1>FreeType-2.5.3 API Reference</h1></center>
<center><h1>
Module Management
</h1></center>
<h2>Synopsis</h2>
<table align=center cellspacing=5 cellpadding=0 border=0>
<tr><td></td><td><a href="#FT_Module_Constructor">FT_Module_Constructor</a></td><td></td><td><a href="#FT_Remove_Module">FT_Remove_Module</a></td><td></td><td><a href="#FT_Set_Debug_Hook">FT_Set_Debug_Hook</a></td></tr>
<tr><td></td><td><a href="#FT_Module_Destructor">FT_Module_Destructor</a></td><td></td><td><a href="#FT_Property_Set">FT_Property_Set</a></td><td></td><td><a href="#FT_Add_Default_Modules">FT_Add_Default_Modules</a></td></tr>
<tr><td></td><td><a href="#FT_Module_Requester">FT_Module_Requester</a></td><td></td><td><a href="#FT_Property_Get">FT_Property_Get</a></td><td></td><td><a href="#FT_Renderer_Class">FT_Renderer_Class</a></td></tr>
<tr><td></td><td><a href="#FT_Module_Class">FT_Module_Class</a></td><td></td><td><a href="#FT_Reference_Library">FT_Reference_Library</a></td><td></td><td><a href="#FT_Get_Renderer">FT_Get_Renderer</a></td></tr>
<tr><td></td><td><a href="#FT_Add_Module">FT_Add_Module</a></td><td></td><td><a href="#FT_New_Library">FT_New_Library</a></td><td></td><td><a href="#FT_Set_Renderer">FT_Set_Renderer</a></td></tr>
<tr><td></td><td><a href="#FT_Get_Module">FT_Get_Module</a></td><td></td><td><a href="#FT_Done_Library">FT_Done_Library</a></td><td></td><td></td></tr>
</table><br><br>
<table align=center width="87%"><tr><td>
<p>The definitions below are used to manage modules within FreeType. Modules can be added, upgraded, and removed at runtime. Additionally, some module properties can be controlled also.</p>
<p>Here is a list of possible values of the ‘module_name’ field in the <a href="ft2-module_management.html#FT_Module_Class">FT_Module_Class</a> structure.</p>
<pre class="colored">
autofitter
bdf
cff
gxvalid
otvalid
pcf
pfr
psaux
pshinter
psnames
raster1, raster5
sfnt
smooth, smooth-lcd, smooth-lcdv
truetype
type1
type42
t1cid
winfonts
</pre>
<p>Note that the FreeType Cache sub-system is not a FreeType module.</p>
</td></tr></table><br>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Module_Constructor">FT_Module_Constructor</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
<span class="keyword">typedef</span> <a href="ft2-basic_types.html#FT_Error">FT_Error</a>
(*<b>FT_Module_Constructor</b>)( <a href="ft2-base_interface.html#FT_Module">FT_Module</a> module );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>A function used to initialize (not create) a new module object.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>module</b></td><td>
<p>The module to initialize.</p>
</td></tr>
</table>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Module_Destructor">FT_Module_Destructor</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
<span class="keyword">typedef</span> <span class="keyword">void</span>
(*<b>FT_Module_Destructor</b>)( <a href="ft2-base_interface.html#FT_Module">FT_Module</a> module );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>A function used to finalize (not destroy) a given module object.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>module</b></td><td>
<p>The module to finalize.</p>
</td></tr>
</table>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Module_Requester">FT_Module_Requester</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
<span class="keyword">typedef</span> FT_Module_Interface
(*<b>FT_Module_Requester</b>)( <a href="ft2-base_interface.html#FT_Module">FT_Module</a> module,
<span class="keyword">const</span> <span class="keyword">char</span>* name );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>A function used to query a given module for a specific interface.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>module</b></td><td>
<p>The module to be searched.</p>
</td></tr>
<tr valign=top><td><b>name</b></td><td>
<p>The name of the interface in the module.</p>
</td></tr>
</table>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Module_Class">FT_Module_Class</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
<span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Module_Class_
{
<a href="ft2-basic_types.html#FT_ULong">FT_ULong</a> module_flags;
<a href="ft2-basic_types.html#FT_Long">FT_Long</a> module_size;
<span class="keyword">const</span> <a href="ft2-basic_types.html#FT_String">FT_String</a>* module_name;
<a href="ft2-basic_types.html#FT_Fixed">FT_Fixed</a> module_version;
<a href="ft2-basic_types.html#FT_Fixed">FT_Fixed</a> module_requires;
<span class="keyword">const</span> <span class="keyword">void</span>* module_interface;
<a href="ft2-module_management.html#FT_Module_Constructor">FT_Module_Constructor</a> module_init;
<a href="ft2-module_management.html#FT_Module_Destructor">FT_Module_Destructor</a> module_done;
<a href="ft2-module_management.html#FT_Module_Requester">FT_Module_Requester</a> get_interface;
} <b>FT_Module_Class</b>;
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>The module class descriptor.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>fields</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>module_flags</b></td><td>
<p>Bit flags describing the module.</p>
</td></tr>
<tr valign=top><td><b>module_size</b></td><td>
<p>The size of one module object/instance in bytes.</p>
</td></tr>
<tr valign=top><td><b>module_name</b></td><td>
<p>The name of the module.</p>
</td></tr>
<tr valign=top><td><b>module_version</b></td><td>
<p>The version, as a 16.16 fixed number (major.minor).</p>
</td></tr>
<tr valign=top><td><b>module_requires</b></td><td>
<p>The version of FreeType this module requires, as a 16.16 fixed number (major.minor). Starts at version 2.0, i.e., 0x20000.</p>
</td></tr>
<tr valign=top><td><b>module_init</b></td><td>
<p>The initializing function.</p>
</td></tr>
<tr valign=top><td><b>module_done</b></td><td>
<p>The finalizing function.</p>
</td></tr>
<tr valign=top><td><b>get_interface</b></td><td>
<p>The interface requesting function.</p>
</td></tr>
</table>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Add_Module">FT_Add_Module</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_Add_Module</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a> library,
<span class="keyword">const</span> <a href="ft2-module_management.html#FT_Module_Class">FT_Module_Class</a>* clazz );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Add a new module to a given library instance.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>inout</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>library</b></td><td>
<p>A handle to the library object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>clazz</b></td><td>
<p>A pointer to class descriptor for the module.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>An error will be returned if a module already exists by that name, or if the module requires a version of FreeType that is too great.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Get_Module">FT_Get_Module</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-base_interface.html#FT_Module">FT_Module</a> )
<b>FT_Get_Module</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a> library,
<span class="keyword">const</span> <span class="keyword">char</span>* module_name );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Find a module by its name.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>library</b></td><td>
<p>A handle to the library object.</p>
</td></tr>
<tr valign=top><td><b>module_name</b></td><td>
<p>The module's name (as an ASCII string).</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>A module handle. 0 if none was found.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>FreeType's internal modules aren't documented very well, and you should look up the source code for details.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Remove_Module">FT_Remove_Module</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_Remove_Module</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a> library,
<a href="ft2-base_interface.html#FT_Module">FT_Module</a> module );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Remove a given module from a library instance.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>inout</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>library</b></td><td>
<p>A handle to a library object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>module</b></td><td>
<p>A handle to a module object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>The module object is destroyed by the function in case of success.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Property_Set">FT_Property_Set</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_Property_Set</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a> library,
<span class="keyword">const</span> <a href="ft2-basic_types.html#FT_String">FT_String</a>* module_name,
<span class="keyword">const</span> <a href="ft2-basic_types.html#FT_String">FT_String</a>* property_name,
<span class="keyword">const</span> <span class="keyword">void</span>* value );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Set a property for a given module.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>library</b></td><td>
<p>A handle to the library the module is part of.</p>
</td></tr>
<tr valign=top><td><b>module_name</b></td><td>
<p>The module name.</p>
</td></tr>
<tr valign=top><td><b>property_name</b></td><td>
<p>The property name. Properties are described in the ‘Synopsis’ subsection of the module's documentation.</p>
<p>Note that only a few modules have properties.</p>
</td></tr>
<tr valign=top><td><b>value</b></td><td>
<p>A generic pointer to a variable or structure that gives the new value of the property. The exact definition of ‘value’ is dependent on the property; see the ‘Synopsis’ subsection of the module's documentation.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>If ‘module_name’ isn't a valid module name, or ‘property_name’ doesn't specify a valid property, or if ‘value’ doesn't represent a valid value for the given property, an error is returned.</p>
<p>The following example sets property ‘bar’ (a simple integer) in module ‘foo’ to value 1.</p>
<pre class="colored">
FT_UInt bar;
bar = 1;
FT_Property_Set( library, "foo", "bar", &bar );
</pre>
<p>Note that the FreeType Cache sub-system doesn't recognize module property changes. To avoid glyph lookup confusion within the cache you should call <a href="ft2-cache_subsystem.html#FTC_Manager_Reset">FTC_Manager_Reset</a> to completely flush the cache if a module property gets changed after <a href="ft2-cache_subsystem.html#FTC_Manager_New">FTC_Manager_New</a> has been called.</p>
<p>It is not possible to set properties of the FreeType Cache sub-system itself with FT_Property_Set; use ?FTC_Property_Set? instead.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>since</b></em></td></tr><tr><td>
<p>2.4.11</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Property_Get">FT_Property_Get</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_Property_Get</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a> library,
<span class="keyword">const</span> <a href="ft2-basic_types.html#FT_String">FT_String</a>* module_name,
<span class="keyword">const</span> <a href="ft2-basic_types.html#FT_String">FT_String</a>* property_name,
<span class="keyword">void</span>* value );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Get a module's property value.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>library</b></td><td>
<p>A handle to the library the module is part of.</p>
</td></tr>
<tr valign=top><td><b>module_name</b></td><td>
<p>The module name.</p>
</td></tr>
<tr valign=top><td><b>property_name</b></td><td>
<p>The property name. Properties are described in the ‘Synopsis’ subsection of the module's documentation.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>inout</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>value</b></td><td>
<p>A generic pointer to a variable or structure that gives the value of the property. The exact definition of ‘value’ is dependent on the property; see the ‘Synopsis’ subsection of the module's documentation.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>If ‘module_name’ isn't a valid module name, or ‘property_name’ doesn't specify a valid property, or if ‘value’ doesn't represent a valid value for the given property, an error is returned.</p>
<p>The following example gets property ‘baz’ (a range) in module ‘foo’.</p>
<pre class="colored">
typedef range_
{
FT_Int32 min;
FT_Int32 max;
} range;
range baz;
FT_Property_Get( library, "foo", "baz", &baz );
</pre>
<p>It is not possible to retrieve properties of the FreeType Cache sub-system with FT_Property_Get; use ?FTC_Property_Get? instead.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>since</b></em></td></tr><tr><td>
<p>2.4.11</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Reference_Library">FT_Reference_Library</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_Reference_Library</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a> library );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>A counter gets initialized to 1 at the time an <a href="ft2-base_interface.html#FT_Library">FT_Library</a> structure is created. This function increments the counter. <a href="ft2-module_management.html#FT_Done_Library">FT_Done_Library</a> then only destroys a library if the counter is 1, otherwise it simply decrements the counter.</p>
<p>This function helps in managing life-cycles of structures that reference <a href="ft2-base_interface.html#FT_Library">FT_Library</a> objects.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>library</b></td><td>
<p>A handle to a target library object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>since</b></em></td></tr><tr><td>
<p>2.4.2</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_New_Library">FT_New_Library</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_New_Library</b>( <a href="ft2-system_interface.html#FT_Memory">FT_Memory</a> memory,
<a href="ft2-base_interface.html#FT_Library">FT_Library</a> *alibrary );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>This function is used to create a new FreeType library instance from a given memory object. It is thus possible to use libraries with distinct memory allocators within the same program.</p>
<p>Normally, you would call this function (followed by a call to <a href="ft2-module_management.html#FT_Add_Default_Modules">FT_Add_Default_Modules</a> or a series of calls to <a href="ft2-module_management.html#FT_Add_Module">FT_Add_Module</a>) instead of <a href="ft2-base_interface.html#FT_Init_FreeType">FT_Init_FreeType</a> to initialize the FreeType library.</p>
<p>Don't use <a href="ft2-base_interface.html#FT_Done_FreeType">FT_Done_FreeType</a> but <a href="ft2-module_management.html#FT_Done_Library">FT_Done_Library</a> to destroy a library instance.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>memory</b></td><td>
<p>A handle to the original memory object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>output</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>alibrary</b></td><td>
<p>A pointer to handle of a new library object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>See the discussion of reference counters in the description of <a href="ft2-module_management.html#FT_Reference_Library">FT_Reference_Library</a>.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Done_Library">FT_Done_Library</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_Done_Library</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a> library );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Discard a given library object. This closes all drivers and discards all resource objects.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>library</b></td><td>
<p>A handle to the target library.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>See the discussion of reference counters in the description of <a href="ft2-module_management.html#FT_Reference_Library">FT_Reference_Library</a>.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Set_Debug_Hook">FT_Set_Debug_Hook</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <span class="keyword">void</span> )
<b>FT_Set_Debug_Hook</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a> library,
<a href="ft2-basic_types.html#FT_UInt">FT_UInt</a> hook_index,
FT_DebugHook_Func debug_hook );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Set a debug hook function for debugging the interpreter of a font format.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>inout</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>library</b></td><td>
<p>A handle to the library object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>hook_index</b></td><td>
<p>The index of the debug hook. You should use the values defined in ‘ftobjs.h’, e.g., ‘FT_DEBUG_HOOK_TRUETYPE’.</p>
</td></tr>
<tr valign=top><td><b>debug_hook</b></td><td>
<p>The function used to debug the interpreter.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>Currently, four debug hook slots are available, but only two (for the TrueType and the Type 1 interpreter) are defined.</p>
<p>Since the internal headers of FreeType are no longer installed, the symbol ‘FT_DEBUG_HOOK_TRUETYPE’ isn't available publicly. This is a bug and will be fixed in a forthcoming release.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Add_Default_Modules">FT_Add_Default_Modules</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_MODULE_H (ftmodapi.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <span class="keyword">void</span> )
<b>FT_Add_Default_Modules</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a> library );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Add the set of default drivers to a given library object. This is only useful when you create a library object with <a href="ft2-module_management.html#FT_New_Library">FT_New_Library</a> (usually to plug a custom memory manager).</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>inout</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>library</b></td><td>
<p>A handle to a new library object.</p>
</td></tr>
</table>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Renderer_Class">FT_Renderer_Class</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_RENDER_H (ftrender.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
<span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Renderer_Class_
{
<a href="ft2-module_management.html#FT_Module_Class">FT_Module_Class</a> root;
<a href="ft2-basic_types.html#FT_Glyph_Format">FT_Glyph_Format</a> glyph_format;
FT_Renderer_RenderFunc render_glyph;
FT_Renderer_TransformFunc transform_glyph;
FT_Renderer_GetCBoxFunc get_glyph_cbox;
FT_Renderer_SetModeFunc set_mode;
<a href="ft2-raster.html#FT_Raster_Funcs">FT_Raster_Funcs</a>* raster_class;
} <b>FT_Renderer_Class</b>;
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>The renderer module class descriptor.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>fields</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>root</b></td><td>
<p>The root <a href="ft2-module_management.html#FT_Module_Class">FT_Module_Class</a> fields.</p>
</td></tr>
<tr valign=top><td><b>glyph_format</b></td><td>
<p>The glyph image format this renderer handles.</p>
</td></tr>
<tr valign=top><td><b>render_glyph</b></td><td>
<p>A method used to render the image that is in a given glyph slot into a bitmap.</p>
</td></tr>
<tr valign=top><td><b>transform_glyph</b></td><td>
<p>A method used to transform the image that is in a given glyph slot.</p>
</td></tr>
<tr valign=top><td><b>get_glyph_cbox</b></td><td>
<p>A method used to access the glyph's cbox.</p>
</td></tr>
<tr valign=top><td><b>set_mode</b></td><td>
<p>A method used to pass additional parameters.</p>
</td></tr>
<tr valign=top><td><b>raster_class</b></td><td>
<p>For <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_OUTLINE</a> renderers only. This is a pointer to its raster's class.</p>
</td></tr>
</table>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Get_Renderer">FT_Get_Renderer</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_RENDER_H (ftrender.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-base_interface.html#FT_Renderer">FT_Renderer</a> )
<b>FT_Get_Renderer</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a> library,
<a href="ft2-basic_types.html#FT_Glyph_Format">FT_Glyph_Format</a> format );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Retrieve the current renderer for a given glyph format.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>library</b></td><td>
<p>A handle to the library object.</p>
</td></tr>
<tr valign=top><td><b>format</b></td><td>
<p>The glyph format.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>A renderer handle. 0 if none found.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>An error will be returned if a module already exists by that name, or if the module requires a version of FreeType that is too great.</p>
<p>To add a new renderer, simply use <a href="ft2-module_management.html#FT_Add_Module">FT_Add_Module</a>. To retrieve a renderer by its name, use <a href="ft2-module_management.html#FT_Get_Module">FT_Get_Module</a>.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_Set_Renderer">FT_Set_Renderer</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_RENDER_H (ftrender.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_Set_Renderer</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a> library,
<a href="ft2-base_interface.html#FT_Renderer">FT_Renderer</a> renderer,
<a href="ft2-basic_types.html#FT_UInt">FT_UInt</a> num_params,
<a href="ft2-base_interface.html#FT_Parameter">FT_Parameter</a>* parameters );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Set the current renderer to use, and set additional mode.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>inout</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>library</b></td><td>
<p>A handle to the library object.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>renderer</b></td><td>
<p>A handle to the renderer object.</p>
</td></tr>
<tr valign=top><td><b>num_params</b></td><td>
<p>The number of additional parameters.</p>
</td></tr>
<tr valign=top><td><b>parameters</b></td><td>
<p>Additional parameters.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>In case of success, the renderer will be used to convert glyph images in the renderer's known format into bitmaps.</p>
<p>This doesn't change the current renderer for other formats.</p>
<p>Currently, only the B/W renderer, if compiled with FT_RASTER_OPTION_ANTI_ALIASING (providing a 5-levels anti-aliasing mode; this option must be set directly in ‘ftraster.c’ and is undefined by default) accepts a single tag ‘pal5’ to set its gray palette as a character string with 5 elements. Consequently, the third and fourth argument are zero normally.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
</body>
</html>
|
