/usr/share/doc/libfreetype6/reference/ft2-module_management.html is in libfreetype6-dev 2.5.2-3+deb8u2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-2.5.2 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-2.5.2 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>
|