docs/html/harfbuzz-hb-ot-layout.html

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  18                   <a href="#harfbuzz-hb-ot-layout.description" class="shortcut">Description</a></span>
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  28 <td valign="top">
  29 <h2><span class="refentrytitle"><a name="harfbuzz-hb-ot-layout.top_of_page"></a>hb-ot-layout</span></h2>
  30 <p>hb-ot-layout — OpenType Layout</p>
  31 </td>
  32 <td class="gallery_image" valign="top" align="right"></td>
  33 </tr></table></div>
  34 <div class="refsect1">
  35 <a name="harfbuzz-hb-ot-layout.functions"></a><h2>Functions</h2>
  36 <div class="informaltable"><table class="informaltable" width="100%" border="0">
  37 <colgroup>
  38 <col width="150px" class="functions_return">
  39 <col class="functions_name">
  40 </colgroup>
  41 <tbody>
  42 <tr>
  43 <td class="function_type">
  44 <a class="link" href="harfbuzz-hb-common.html#hb-language-t" title="hb_language_t"><span class="returnvalue">hb_language_t</span></a>
  45 </td>
  46 <td class="function_name">
  47 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-tag-to-language" title="hb_ot_tag_to_language ()">hb_ot_tag_to_language</a> <span class="c_punctuation">()</span>
  48 </td>
  49 </tr>
  50 <tr>
  51 <td class="function_type">
  52 <a class="link" href="harfbuzz-hb-common.html#hb-script-t" title="enum hb_script_t"><span class="returnvalue">hb_script_t</span></a>
  53 </td>
  54 <td class="function_name">
  55 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-tag-to-script" title="hb_ot_tag_to_script ()">hb_ot_tag_to_script</a> <span class="c_punctuation">()</span>
  56 </td>
  57 </tr>
  58 <tr>
  59 <td class="function_type">
  60 <span class="returnvalue">void</span>
  61 </td>
  62 <td class="function_name">
  63 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-tags-from-script-and-language" title="hb_ot_tags_from_script_and_language ()">hb_ot_tags_from_script_and_language</a> <span class="c_punctuation">()</span>
  64 </td>
  65 </tr>
  66 <tr>
  67 <td class="function_type">
  68 <span class="returnvalue">void</span>
  69 </td>
  70 <td class="function_name">
  71 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-tags-to-script-and-language" title="hb_ot_tags_to_script_and_language ()">hb_ot_tags_to_script_and_language</a> <span class="c_punctuation">()</span>
  72 </td>
  73 </tr>
  74 <tr>
  75 <td class="function_type">
  76 <span class="returnvalue">void</span>
  77 </td>
  78 <td class="function_name">
  79 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-collect-lookups" title="hb_ot_layout_collect_lookups ()">hb_ot_layout_collect_lookups</a> <span class="c_punctuation">()</span>
  80 </td>
  81 </tr>
  82 <tr>
  83 <td class="function_type">
  84 <span class="returnvalue">void</span>
  85 </td>
  86 <td class="function_name">
  87 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-collect-features" title="hb_ot_layout_collect_features ()">hb_ot_layout_collect_features</a> <span class="c_punctuation">()</span>
  88 </td>
  89 </tr>
  90 <tr>
  91 <td class="function_type">unsigned <span class="returnvalue">int</span>
  92 </td>
  93 <td class="function_name">
  94 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-feature-get-characters" title="hb_ot_layout_feature_get_characters ()">hb_ot_layout_feature_get_characters</a> <span class="c_punctuation">()</span>
  95 </td>
  96 </tr>
  97 <tr>
  98 <td class="function_type">unsigned <span class="returnvalue">int</span>
  99 </td>
 100 <td class="function_name">
 101 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-feature-get-lookups" title="hb_ot_layout_feature_get_lookups ()">hb_ot_layout_feature_get_lookups</a> <span class="c_punctuation">()</span>
 102 </td>
 103 </tr>
 104 <tr>
 105 <td class="function_type">
 106 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 107 </td>
 108 <td class="function_name">
 109 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-feature-get-name-ids" title="hb_ot_layout_feature_get_name_ids ()">hb_ot_layout_feature_get_name_ids</a> <span class="c_punctuation">()</span>
 110 </td>
 111 </tr>
 112 <tr>
 113 <td class="function_type">unsigned <span class="returnvalue">int</span>
 114 </td>
 115 <td class="function_name">
 116 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-feature-with-variations-get-lookups" title="hb_ot_layout_feature_with_variations_get_lookups ()">hb_ot_layout_feature_with_variations_get_lookups</a> <span class="c_punctuation">()</span>
 117 </td>
 118 </tr>
 119 <tr>
 120 <td class="function_type">unsigned <span class="returnvalue">int</span>
 121 </td>
 122 <td class="function_name">
 123 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-get-attach-points" title="hb_ot_layout_get_attach_points ()">hb_ot_layout_get_attach_points</a> <span class="c_punctuation">()</span>
 124 </td>
 125 </tr>
 126 <tr>
 127 <td class="function_type">
 128 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-glyph-class-t" title="enum hb_ot_layout_glyph_class_t"><span class="returnvalue">hb_ot_layout_glyph_class_t</span></a>
 129 </td>
 130 <td class="function_name">
 131 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-get-glyph-class" title="hb_ot_layout_get_glyph_class ()">hb_ot_layout_get_glyph_class</a> <span class="c_punctuation">()</span>
 132 </td>
 133 </tr>
 134 <tr>
 135 <td class="function_type">
 136 <span class="returnvalue">void</span>
 137 </td>
 138 <td class="function_name">
 139 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-get-glyphs-in-class" title="hb_ot_layout_get_glyphs_in_class ()">hb_ot_layout_get_glyphs_in_class</a> <span class="c_punctuation">()</span>
 140 </td>
 141 </tr>
 142 <tr>
 143 <td class="function_type">unsigned <span class="returnvalue">int</span>
 144 </td>
 145 <td class="function_name">
 146 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-get-ligature-carets" title="hb_ot_layout_get_ligature_carets ()">hb_ot_layout_get_ligature_carets</a> <span class="c_punctuation">()</span>
 147 </td>
 148 </tr>
 149 <tr>
 150 <td class="function_type">
 151 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 152 </td>
 153 <td class="function_name">
 154 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-get-size-params" title="hb_ot_layout_get_size_params ()">hb_ot_layout_get_size_params</a> <span class="c_punctuation">()</span>
 155 </td>
 156 </tr>
 157 <tr>
 158 <td class="function_type">
 159 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 160 </td>
 161 <td class="function_name">
 162 <span class="c_punctuation">(</span><a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-glyph-sequence-func-t" title="hb_ot_layout_glyph_sequence_func_t ()">*hb_ot_layout_glyph_sequence_func_t</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
 163 </td>
 164 </tr>
 165 <tr>
 166 <td class="function_type">
 167 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 168 </td>
 169 <td class="function_name">
 170 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-has-glyph-classes" title="hb_ot_layout_has_glyph_classes ()">hb_ot_layout_has_glyph_classes</a> <span class="c_punctuation">()</span>
 171 </td>
 172 </tr>
 173 <tr>
 174 <td class="function_type">
 175 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 176 </td>
 177 <td class="function_name">
 178 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-has-positioning" title="hb_ot_layout_has_positioning ()">hb_ot_layout_has_positioning</a> <span class="c_punctuation">()</span>
 179 </td>
 180 </tr>
 181 <tr>
 182 <td class="function_type">
 183 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 184 </td>
 185 <td class="function_name">
 186 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-has-substitution" title="hb_ot_layout_has_substitution ()">hb_ot_layout_has_substitution</a> <span class="c_punctuation">()</span>
 187 </td>
 188 </tr>
 189 <tr>
 190 <td class="function_type">
 191 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 192 </td>
 193 <td class="function_name">
 194 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-language-find-feature" title="hb_ot_layout_language_find_feature ()">hb_ot_layout_language_find_feature</a> <span class="c_punctuation">()</span>
 195 </td>
 196 </tr>
 197 <tr>
 198 <td class="function_type">unsigned <span class="returnvalue">int</span>
 199 </td>
 200 <td class="function_name">
 201 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-language-get-feature-indexes" title="hb_ot_layout_language_get_feature_indexes ()">hb_ot_layout_language_get_feature_indexes</a> <span class="c_punctuation">()</span>
 202 </td>
 203 </tr>
 204 <tr>
 205 <td class="function_type">unsigned <span class="returnvalue">int</span>
 206 </td>
 207 <td class="function_name">
 208 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-language-get-feature-tags" title="hb_ot_layout_language_get_feature_tags ()">hb_ot_layout_language_get_feature_tags</a> <span class="c_punctuation">()</span>
 209 </td>
 210 </tr>
 211 <tr>
 212 <td class="function_type">
 213 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 214 </td>
 215 <td class="function_name">
 216 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-language-get-required-feature" title="hb_ot_layout_language_get_required_feature ()">hb_ot_layout_language_get_required_feature</a> <span class="c_punctuation">()</span>
 217 </td>
 218 </tr>
 219 <tr>
 220 <td class="function_type">
 221 <span class="returnvalue">void</span>
 222 </td>
 223 <td class="function_name">
 224 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-lookup-collect-glyphs" title="hb_ot_layout_lookup_collect_glyphs ()">hb_ot_layout_lookup_collect_glyphs</a> <span class="c_punctuation">()</span>
 225 </td>
 226 </tr>
 227 <tr>
 228 <td class="function_type">
 229 <span class="returnvalue">void</span>
 230 </td>
 231 <td class="function_name">
 232 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-lookup-substitute-closure" title="hb_ot_layout_lookup_substitute_closure ()">hb_ot_layout_lookup_substitute_closure</a> <span class="c_punctuation">()</span>
 233 </td>
 234 </tr>
 235 <tr>
 236 <td class="function_type">
 237 <span class="returnvalue">void</span>
 238 </td>
 239 <td class="function_name">
 240 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-lookups-substitute-closure" title="hb_ot_layout_lookups_substitute_closure ()">hb_ot_layout_lookups_substitute_closure</a> <span class="c_punctuation">()</span>
 241 </td>
 242 </tr>
 243 <tr>
 244 <td class="function_type">
 245 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 246 </td>
 247 <td class="function_name">
 248 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-lookup-would-substitute" title="hb_ot_layout_lookup_would_substitute ()">hb_ot_layout_lookup_would_substitute</a> <span class="c_punctuation">()</span>
 249 </td>
 250 </tr>
 251 <tr>
 252 <td class="function_type">unsigned <span class="returnvalue">int</span>
 253 </td>
 254 <td class="function_name">
 255 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-script-get-language-tags" title="hb_ot_layout_script_get_language_tags ()">hb_ot_layout_script_get_language_tags</a> <span class="c_punctuation">()</span>
 256 </td>
 257 </tr>
 258 <tr>
 259 <td class="function_type">
 260 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 261 </td>
 262 <td class="function_name">
 263 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-script-select-language" title="hb_ot_layout_script_select_language ()">hb_ot_layout_script_select_language</a> <span class="c_punctuation">()</span>
 264 </td>
 265 </tr>
 266 <tr>
 267 <td class="function_type">
 268 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 269 </td>
 270 <td class="function_name">
 271 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-table-find-feature-variations" title="hb_ot_layout_table_find_feature_variations ()">hb_ot_layout_table_find_feature_variations</a> <span class="c_punctuation">()</span>
 272 </td>
 273 </tr>
 274 <tr>
 275 <td class="function_type">unsigned <span class="returnvalue">int</span>
 276 </td>
 277 <td class="function_name">
 278 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-table-get-feature-tags" title="hb_ot_layout_table_get_feature_tags ()">hb_ot_layout_table_get_feature_tags</a> <span class="c_punctuation">()</span>
 279 </td>
 280 </tr>
 281 <tr>
 282 <td class="function_type">unsigned <span class="returnvalue">int</span>
 283 </td>
 284 <td class="function_name">
 285 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-table-get-script-tags" title="hb_ot_layout_table_get_script_tags ()">hb_ot_layout_table_get_script_tags</a> <span class="c_punctuation">()</span>
 286 </td>
 287 </tr>
 288 <tr>
 289 <td class="function_type">unsigned <span class="returnvalue">int</span>
 290 </td>
 291 <td class="function_name">
 292 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-table-get-lookup-count" title="hb_ot_layout_table_get_lookup_count ()">hb_ot_layout_table_get_lookup_count</a> <span class="c_punctuation">()</span>
 293 </td>
 294 </tr>
 295 <tr>
 296 <td class="function_type">
 297 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 298 </td>
 299 <td class="function_name">
 300 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-table-select-script" title="hb_ot_layout_table_select_script ()">hb_ot_layout_table_select_script</a> <span class="c_punctuation">()</span>
 301 </td>
 302 </tr>
 303 <tr>
 304 <td class="function_type">
 305 <span class="returnvalue">void</span>
 306 </td>
 307 <td class="function_name">
 308 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-shape-plan-collect-lookups" title="hb_ot_shape_plan_collect_lookups ()">hb_ot_shape_plan_collect_lookups</a> <span class="c_punctuation">()</span>
 309 </td>
 310 </tr>
 311 <tr>
 312 <td class="function_type">
 313 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 314 </td>
 315 <td class="function_name">
 316 <a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-language-get-required-feature-index" title="hb_ot_layout_language_get_required_feature_index ()">hb_ot_layout_language_get_required_feature_index</a> <span class="c_punctuation">()</span>
 317 </td>
 318 </tr>
 319 </tbody>
 320 </table></div>
 321 </div>
 322 <div class="refsect1">
 323 <a name="harfbuzz-hb-ot-layout.other"></a><h2>Types and Values</h2>
 324 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 325 <colgroup>
 326 <col width="150px" class="name">
 327 <col class="description">
 328 </colgroup>
 329 <tbody>
 330 <tr>
 331 <td class="define_keyword">#define</td>
 332 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-MAX-TAGS-PER-LANGUAGE:CAPS" title="HB_OT_MAX_TAGS_PER_LANGUAGE">HB_OT_MAX_TAGS_PER_LANGUAGE</a></td>
 333 </tr>
 334 <tr>
 335 <td class="define_keyword">#define</td>
 336 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-MAX-TAGS-PER-SCRIPT:CAPS" title="HB_OT_MAX_TAGS_PER_SCRIPT">HB_OT_MAX_TAGS_PER_SCRIPT</a></td>
 337 </tr>
 338 <tr>
 339 <td class="define_keyword">#define</td>
 340 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-TAG-DEFAULT-LANGUAGE:CAPS" title="HB_OT_TAG_DEFAULT_LANGUAGE">HB_OT_TAG_DEFAULT_LANGUAGE</a></td>
 341 </tr>
 342 <tr>
 343 <td class="define_keyword">#define</td>
 344 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-TAG-DEFAULT-SCRIPT:CAPS" title="HB_OT_TAG_DEFAULT_SCRIPT">HB_OT_TAG_DEFAULT_SCRIPT</a></td>
 345 </tr>
 346 <tr>
 347 <td class="define_keyword">#define</td>
 348 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-LAYOUT-DEFAULT-LANGUAGE-INDEX:CAPS" title="HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX">HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX</a></td>
 349 </tr>
 350 <tr>
 351 <td class="define_keyword">#define</td>
 352 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-LAYOUT-NO-FEATURE-INDEX:CAPS" title="HB_OT_LAYOUT_NO_FEATURE_INDEX">HB_OT_LAYOUT_NO_FEATURE_INDEX</a></td>
 353 </tr>
 354 <tr>
 355 <td class="define_keyword">#define</td>
 356 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-LAYOUT-NO-SCRIPT-INDEX:CAPS" title="HB_OT_LAYOUT_NO_SCRIPT_INDEX">HB_OT_LAYOUT_NO_SCRIPT_INDEX</a></td>
 357 </tr>
 358 <tr>
 359 <td class="define_keyword">#define</td>
 360 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-LAYOUT-NO-VARIATIONS-INDEX:CAPS" title="HB_OT_LAYOUT_NO_VARIATIONS_INDEX">HB_OT_LAYOUT_NO_VARIATIONS_INDEX</a></td>
 361 </tr>
 362 <tr>
 363 <td class="define_keyword">#define</td>
 364 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-TAG-BASE:CAPS" title="HB_OT_TAG_BASE">HB_OT_TAG_BASE</a></td>
 365 </tr>
 366 <tr>
 367 <td class="define_keyword">#define</td>
 368 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-TAG-GDEF:CAPS" title="HB_OT_TAG_GDEF">HB_OT_TAG_GDEF</a></td>
 369 </tr>
 370 <tr>
 371 <td class="define_keyword">#define</td>
 372 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-TAG-GPOS:CAPS" title="HB_OT_TAG_GPOS">HB_OT_TAG_GPOS</a></td>
 373 </tr>
 374 <tr>
 375 <td class="define_keyword">#define</td>
 376 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-TAG-GSUB:CAPS" title="HB_OT_TAG_GSUB">HB_OT_TAG_GSUB</a></td>
 377 </tr>
 378 <tr>
 379 <td class="define_keyword">#define</td>
 380 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#HB-OT-TAG-JSTF:CAPS" title="HB_OT_TAG_JSTF">HB_OT_TAG_JSTF</a></td>
 381 </tr>
 382 <tr>
 383 <td class="datatype_keyword">enum</td>
 384 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-glyph-class-t" title="enum hb_ot_layout_glyph_class_t">hb_ot_layout_glyph_class_t</a></td>
 385 </tr>
 386 </tbody>
 387 </table></div>
 388 </div>
 389 <div class="refsect1">
 390 <a name="harfbuzz-hb-ot-layout.includes"></a><h2>Includes</h2>
 391 <pre class="synopsis">#include &lt;hb-ot.h&gt;
 392 </pre>
 393 </div>
 394 <div class="refsect1">
 395 <a name="harfbuzz-hb-ot-layout.description"></a><h2>Description</h2>
 396 <p>Functions for querying OpenType Layout features in the font face.</p>
 397 </div>
 398 <div class="refsect1">
 399 <a name="harfbuzz-hb-ot-layout.functions_details"></a><h2>Functions</h2>
 400 <div class="refsect2">
 401 <a name="hb-ot-tag-to-language"></a><h3>hb_ot_tag_to_language ()</h3>
 402 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-language-t" title="hb_language_t"><span class="returnvalue">hb_language_t</span></a>
 403 hb_ot_tag_to_language (<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> tag</code></em>);</pre>
 404 <div class="refsect3">
 405 <a name="hb-ot-tag-to-language.returns"></a><h4>Returns</h4>
 406 <p>. </p>
 407 <p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
 408 </div>
 409 <p class="since">Since: <a class="link" href="api-index-0-9-2.html#api-index-0.9.2">0.9.2</a></p>
 410 </div>
 411 <hr>
 412 <div class="refsect2">
 413 <a name="hb-ot-tag-to-script"></a><h3>hb_ot_tag_to_script ()</h3>
 414 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-script-t" title="enum hb_script_t"><span class="returnvalue">hb_script_t</span></a>
 415 hb_ot_tag_to_script (<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> tag</code></em>);</pre>
 416 </div>
 417 <hr>
 418 <div class="refsect2">
 419 <a name="hb-ot-tags-from-script-and-language"></a><h3>hb_ot_tags_from_script_and_language ()</h3>
 420 <pre class="programlisting"><span class="returnvalue">void</span>
 421 hb_ot_tags_from_script_and_language (<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-script-t" title="enum hb_script_t"><span class="type">hb_script_t</span></a> script</code></em>,
 422                                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-language-t" title="hb_language_t"><span class="type">hb_language_t</span></a> language</code></em>,
 423                                      <em class="parameter"><code>unsigned <span class="type">int</span> *script_count</code></em>,
 424                                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *script_tags</code></em>,
 425                                      <em class="parameter"><code>unsigned <span class="type">int</span> *language_count</code></em>,
 426                                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *language_tags</code></em>);</pre>
 427 <p>Converts an <a class="link" href="harfbuzz-hb-common.html#hb-script-t" title="enum hb_script_t"><span class="type">hb_script_t</span></a> and an <a class="link" href="harfbuzz-hb-common.html#hb-language-t" title="hb_language_t"><span class="type">hb_language_t</span></a> to script and language tags.</p>
 428 <div class="refsect3">
 429 <a name="hb-ot-tags-from-script-and-language.parameters"></a><h4>Parameters</h4>
 430 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 431 <colgroup>
 432 <col width="150px" class="parameters_name">
 433 <col class="parameters_description">
 434 <col width="200px" class="parameters_annotations">
 435 </colgroup>
 436 <tbody>
 437 <tr>
 438 <td class="parameter_name"><p>script</p></td>
 439 <td class="parameter_description"><p>an <a class="link" href="harfbuzz-hb-common.html#hb-script-t" title="enum hb_script_t"><span class="type">hb_script_t</span></a> to convert.</p></td>
 440 <td class="parameter_annotations"> </td>
 441 </tr>
 442 <tr>
 443 <td class="parameter_name"><p>language</p></td>
 444 <td class="parameter_description"><p>an <a class="link" href="harfbuzz-hb-common.html#hb-language-t" title="hb_language_t"><span class="type">hb_language_t</span></a> to convert.</p></td>
 445 <td class="parameter_annotations"> </td>
 446 </tr>
 447 <tr>
 448 <td class="parameter_name"><p>script_count</p></td>
 449 <td class="parameter_description"><p>maximum number of script tags to retrieve (IN)
 450 and actual number of script tags retrieved (OUT). </p></td>
 451 <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 452 </tr>
 453 <tr>
 454 <td class="parameter_name"><p>script_tags</p></td>
 455 <td class="parameter_description"><p>array of size at least <em class="parameter"><code>script_count</code></em>
 456 to store the
 457 script tag results. </p></td>
 458 <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 459 </tr>
 460 <tr>
 461 <td class="parameter_name"><p>language_count</p></td>
 462 <td class="parameter_description"><p>maximum number of language tags to retrieve
 463 (IN) and actual number of language tags retrieved (OUT). </p></td>
 464 <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 465 </tr>
 466 <tr>
 467 <td class="parameter_name"><p>language_tags</p></td>
 468 <td class="parameter_description"><p>array of size at least <em class="parameter"><code>language_count</code></em>
 469 to store
 470 the language tag results. </p></td>
 471 <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 472 </tr>
 473 </tbody>
 474 </table></div>
 475 </div>
 476 <p class="since">Since: <a class="link" href="api-index-2-0-0.html#api-index-2.0.0">2.0.0</a></p>
 477 </div>
 478 <hr>
 479 <div class="refsect2">
 480 <a name="hb-ot-tags-to-script-and-language"></a><h3>hb_ot_tags_to_script_and_language ()</h3>
 481 <pre class="programlisting"><span class="returnvalue">void</span>
 482 hb_ot_tags_to_script_and_language (<em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> script_tag</code></em>,
 483                                    <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> language_tag</code></em>,
 484                                    <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-script-t" title="enum hb_script_t"><span class="type">hb_script_t</span></a> *script</code></em>,
 485                                    <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-language-t" title="hb_language_t"><span class="type">hb_language_t</span></a> *language</code></em>);</pre>
 486 <p>Converts a script tag and a language tag to an <a class="link" href="harfbuzz-hb-common.html#hb-script-t" title="enum hb_script_t"><span class="type">hb_script_t</span></a> and an
 487 <a class="link" href="harfbuzz-hb-common.html#hb-language-t" title="hb_language_t"><span class="type">hb_language_t</span></a>.</p>
 488 <div class="refsect3">
 489 <a name="hb-ot-tags-to-script-and-language.parameters"></a><h4>Parameters</h4>
 490 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 491 <colgroup>
 492 <col width="150px" class="parameters_name">
 493 <col class="parameters_description">
 494 <col width="200px" class="parameters_annotations">
 495 </colgroup>
 496 <tbody>
 497 <tr>
 498 <td class="parameter_name"><p>script_tag</p></td>
 499 <td class="parameter_description"><p>a script tag</p></td>
 500 <td class="parameter_annotations"> </td>
 501 </tr>
 502 <tr>
 503 <td class="parameter_name"><p>language_tag</p></td>
 504 <td class="parameter_description"><p>a language tag</p></td>
 505 <td class="parameter_annotations"> </td>
 506 </tr>
 507 <tr>
 508 <td class="parameter_name"><p>script</p></td>
 509 <td class="parameter_description"><p>the <a class="link" href="harfbuzz-hb-common.html#hb-script-t" title="enum hb_script_t"><span class="type">hb_script_t</span></a> corresponding to <em class="parameter"><code>script_tag</code></em>
 510 (OUT). </p></td>
 511 <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 512 </tr>
 513 <tr>
 514 <td class="parameter_name"><p>language</p></td>
 515 <td class="parameter_description"><p>the <a class="link" href="harfbuzz-hb-common.html#hb-language-t" title="hb_language_t"><span class="type">hb_language_t</span></a> corresponding to <em class="parameter"><code>script_tag</code></em>
 516 and
 517 <em class="parameter"><code>language_tag</code></em>
 518 (OUT). </p></td>
 519 <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 520 </tr>
 521 </tbody>
 522 </table></div>
 523 </div>
 524 <p class="since">Since: <a class="link" href="api-index-2-0-0.html#api-index-2.0.0">2.0.0</a></p>
 525 </div>
 526 <hr>
 527 <div class="refsect2">
 528 <a name="hb-ot-layout-collect-lookups"></a><h3>hb_ot_layout_collect_lookups ()</h3>
 529 <pre class="programlisting"><span class="returnvalue">void</span>
 530 hb_ot_layout_collect_lookups (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 531                               <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 532                               <em class="parameter"><code>const <a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *scripts</code></em>,
 533                               <em class="parameter"><code>const <a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *languages</code></em>,
 534                               <em class="parameter"><code>const <a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *features</code></em>,
 535                               <em class="parameter"><code><a class="link" href="harfbuzz-hb-set.html#hb-set-t" title="hb_set_t"><span class="type">hb_set_t</span></a> *lookup_indexes</code></em>);</pre>
 536 <p class="since">Since: <a class="link" href="api-index-0-9-8.html#api-index-0.9.8">0.9.8</a></p>
 537 </div>
 538 <hr>
 539 <div class="refsect2">
 540 <a name="hb-ot-layout-collect-features"></a><h3>hb_ot_layout_collect_features ()</h3>
 541 <pre class="programlisting"><span class="returnvalue">void</span>
 542 hb_ot_layout_collect_features (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 543                                <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 544                                <em class="parameter"><code>const <a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *scripts</code></em>,
 545                                <em class="parameter"><code>const <a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *languages</code></em>,
 546                                <em class="parameter"><code>const <a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *features</code></em>,
 547                                <em class="parameter"><code><a class="link" href="harfbuzz-hb-set.html#hb-set-t" title="hb_set_t"><span class="type">hb_set_t</span></a> *feature_indexes</code></em>);</pre>
 548 <p class="since">Since: <a class="link" href="api-index-1-8-5.html#api-index-1.8.5">1.8.5</a></p>
 549 </div>
 550 <hr>
 551 <div class="refsect2">
 552 <a name="hb-ot-layout-feature-get-characters"></a><h3>hb_ot_layout_feature_get_characters ()</h3>
 553 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 554 hb_ot_layout_feature_get_characters (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 555                                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 556                                      <em class="parameter"><code>unsigned <span class="type">int</span> feature_index</code></em>,
 557                                      <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 558                                      <em class="parameter"><code>unsigned <span class="type">int</span> *char_count</code></em>,
 559                                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> *characters</code></em>);</pre>
 560 <p>Fetches characters listed by designer under feature parameters for "Character
 561 Variant" ("cvXX") features.</p>
 562 <div class="refsect3">
 563 <a name="hb-ot-layout-feature-get-characters.parameters"></a><h4>Parameters</h4>
 564 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 565 <colgroup>
 566 <col width="150px" class="parameters_name">
 567 <col class="parameters_description">
 568 <col width="200px" class="parameters_annotations">
 569 </colgroup>
 570 <tbody>
 571 <tr>
 572 <td class="parameter_name"><p>face</p></td>
 573 <td class="parameter_description"><p><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> to work upon</p></td>
 574 <td class="parameter_annotations"> </td>
 575 </tr>
 576 <tr>
 577 <td class="parameter_name"><p>table_tag</p></td>
 578 <td class="parameter_description"><p>table tag to query, "GSUB" or "GPOS".</p></td>
 579 <td class="parameter_annotations"> </td>
 580 </tr>
 581 <tr>
 582 <td class="parameter_name"><p>feature_index</p></td>
 583 <td class="parameter_description"><p>index of feature to query.</p></td>
 584 <td class="parameter_annotations"> </td>
 585 </tr>
 586 <tr>
 587 <td class="parameter_name"><p>start_offset</p></td>
 588 <td class="parameter_description"><p>In case the resulting char_count was equal to its input value, there
 589 is a chance there were more characters on the tag so this API can be
 590 called with an offset till resulting char_count gets to a number
 591 lower than input buffer (or consider using just a bigger buffer for
 592 one shot copying).</p></td>
 593 <td class="parameter_annotations"> </td>
 594 </tr>
 595 <tr>
 596 <td class="parameter_name"><p>char_count</p></td>
 597 <td class="parameter_description"><p>The count of characters for which this feature
 598 provides glyph variants. (May be zero.). </p></td>
 599 <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for input and for returning results. Default is transfer full."><span class="acronym">inout</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 600 </tr>
 601 <tr>
 602 <td class="parameter_name"><p>characters</p></td>
 603 <td class="parameter_description"><p>A buffer pointer. The Unicode codepoints
 604 of the characters for which this feature provides glyph variants. </p></td>
 605 <td class="parameter_annotations"><span class="annotation">[<acronym title="Out parameter, where caller must allocate storage."><span class="acronym">out caller-allocates</span></acronym>][<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=char_count]</span></td>
 606 </tr>
 607 </tbody>
 608 </table></div>
 609 </div>
 610 <div class="refsect3">
 611 <a name="hb-ot-layout-feature-get-characters.returns"></a><h4>Returns</h4>
 612 <p> Number of total sample characters in the cvXX feature.</p>
 613 </div>
 614 <p class="since">Since: <a class="link" href="api-index-2-0-0.html#api-index-2.0.0">2.0.0</a></p>
 615 </div>
 616 <hr>
 617 <div class="refsect2">
 618 <a name="hb-ot-layout-feature-get-lookups"></a><h3>hb_ot_layout_feature_get_lookups ()</h3>
 619 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 620 hb_ot_layout_feature_get_lookups (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 621                                   <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 622                                   <em class="parameter"><code>unsigned <span class="type">int</span> feature_index</code></em>,
 623                                   <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 624                                   <em class="parameter"><code>unsigned <span class="type">int</span> *lookup_count</code></em>,
 625                                   <em class="parameter"><code>unsigned <span class="type">int</span> *lookup_indexes</code></em>);</pre>
 626 <p class="since">Since: <a class="link" href="api-index-0-9-7.html#api-index-0.9.7">0.9.7</a></p>
 627 </div>
 628 <hr>
 629 <div class="refsect2">
 630 <a name="hb-ot-layout-feature-get-name-ids"></a><h3>hb_ot_layout_feature_get_name_ids ()</h3>
 631 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 632 hb_ot_layout_feature_get_name_ids (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 633                                    <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 634                                    <em class="parameter"><code>unsigned <span class="type">int</span> feature_index</code></em>,
 635                                    <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-name.html#hb-ot-name-id-t" title="hb_ot_name_id_t"><span class="type">hb_ot_name_id_t</span></a> *label_id</code></em>,
 636                                    <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-name.html#hb-ot-name-id-t" title="hb_ot_name_id_t"><span class="type">hb_ot_name_id_t</span></a> *tooltip_id</code></em>,
 637                                    <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-name.html#hb-ot-name-id-t" title="hb_ot_name_id_t"><span class="type">hb_ot_name_id_t</span></a> *sample_id</code></em>,
 638                                    <em class="parameter"><code>unsigned <span class="type">int</span> *num_named_parameters</code></em>,
 639                                    <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-name.html#hb-ot-name-id-t" title="hb_ot_name_id_t"><span class="type">hb_ot_name_id_t</span></a> *first_param_id</code></em>);</pre>
 640 <p>Fetches name indices from feature parameters for "Stylistic Set" ('ssXX') or
 641 "Character Variant" ('cvXX') features.</p>
 642 <div class="refsect3">
 643 <a name="hb-ot-layout-feature-get-name-ids.parameters"></a><h4>Parameters</h4>
 644 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 645 <colgroup>
 646 <col width="150px" class="parameters_name">
 647 <col class="parameters_description">
 648 <col width="200px" class="parameters_annotations">
 649 </colgroup>
 650 <tbody>
 651 <tr>
 652 <td class="parameter_name"><p>face</p></td>
 653 <td class="parameter_description"><p><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> to work upon</p></td>
 654 <td class="parameter_annotations"> </td>
 655 </tr>
 656 <tr>
 657 <td class="parameter_name"><p>table_tag</p></td>
 658 <td class="parameter_description"><p>table tag to query, "GSUB" or "GPOS".</p></td>
 659 <td class="parameter_annotations"> </td>
 660 </tr>
 661 <tr>
 662 <td class="parameter_name"><p>feature_index</p></td>
 663 <td class="parameter_description"><p>index of feature to query.</p></td>
 664 <td class="parameter_annotations"> </td>
 665 </tr>
 666 <tr>
 667 <td class="parameter_name"><p>label_id</p></td>
 668 <td class="parameter_description"><p>The ‘name’ table name ID that specifies a string
 669 for a user-interface label for this feature. (May be NULL.). </p></td>
 670 <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 671 </tr>
 672 <tr>
 673 <td class="parameter_name"><p>tooltip_id</p></td>
 674 <td class="parameter_description"><p>The ‘name’ table name ID that specifies a string
 675 that an application can use for tooltip text for this
 676 feature. (May be NULL.). </p></td>
 677 <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 678 </tr>
 679 <tr>
 680 <td class="parameter_name"><p>sample_id</p></td>
 681 <td class="parameter_description"><p>The ‘name’ table name ID that specifies sample text
 682 that illustrates the effect of this feature. (May be NULL.). </p></td>
 683 <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 684 </tr>
 685 <tr>
 686 <td class="parameter_name"><p>num_named_parameters</p></td>
 687 <td class="parameter_description"><p>Number of named parameters. (May be zero.). </p></td>
 688 <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 689 </tr>
 690 <tr>
 691 <td class="parameter_name"><p>first_param_id</p></td>
 692 <td class="parameter_description"><p>The first ‘name’ table name ID used to specify
 693 strings for user-interface labels for the feature
 694 parameters. (Must be zero if numParameters is zero.). </p></td>
 695 <td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
 696 </tr>
 697 </tbody>
 698 </table></div>
 699 </div>
 700 <div class="refsect3">
 701 <a name="hb-ot-layout-feature-get-name-ids.returns"></a><h4>Returns</h4>
 702 <p> true if data found, false otherwise</p>
 703 </div>
 704 <p class="since">Since: <a class="link" href="api-index-2-0-0.html#api-index-2.0.0">2.0.0</a></p>
 705 </div>
 706 <hr>
 707 <div class="refsect2">
 708 <a name="hb-ot-layout-feature-with-variations-get-lookups"></a><h3>hb_ot_layout_feature_with_variations_get_lookups ()</h3>
 709 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 710 hb_ot_layout_feature_with_variations_get_lookups
 711                                (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 712                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 713                                 <em class="parameter"><code>unsigned <span class="type">int</span> feature_index</code></em>,
 714                                 <em class="parameter"><code>unsigned <span class="type">int</span> variations_index</code></em>,
 715                                 <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 716                                 <em class="parameter"><code>unsigned <span class="type">int</span> *lookup_count</code></em>,
 717                                 <em class="parameter"><code>unsigned <span class="type">int</span> *lookup_indexes</code></em>);</pre>
 718 </div>
 719 <hr>
 720 <div class="refsect2">
 721 <a name="hb-ot-layout-get-attach-points"></a><h3>hb_ot_layout_get_attach_points ()</h3>
 722 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 723 hb_ot_layout_get_attach_points (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 724                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>,
 725                                 <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 726                                 <em class="parameter"><code>unsigned <span class="type">int</span> *point_count</code></em>,
 727                                 <em class="parameter"><code>unsigned <span class="type">int</span> *point_array</code></em>);</pre>
 728 </div>
 729 <hr>
 730 <div class="refsect2">
 731 <a name="hb-ot-layout-get-glyph-class"></a><h3>hb_ot_layout_get_glyph_class ()</h3>
 732 <pre class="programlisting"><a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-glyph-class-t" title="enum hb_ot_layout_glyph_class_t"><span class="returnvalue">hb_ot_layout_glyph_class_t</span></a>
 733 hb_ot_layout_get_glyph_class (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 734                               <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>);</pre>
 735 <p class="since">Since: <a class="link" href="api-index-0-9-7.html#api-index-0.9.7">0.9.7</a></p>
 736 </div>
 737 <hr>
 738 <div class="refsect2">
 739 <a name="hb-ot-layout-get-glyphs-in-class"></a><h3>hb_ot_layout_get_glyphs_in_class ()</h3>
 740 <pre class="programlisting"><span class="returnvalue">void</span>
 741 hb_ot_layout_get_glyphs_in_class (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 742                                   <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-layout.html#hb-ot-layout-glyph-class-t" title="enum hb_ot_layout_glyph_class_t"><span class="type">hb_ot_layout_glyph_class_t</span></a> klass</code></em>,
 743                                   <em class="parameter"><code><a class="link" href="harfbuzz-hb-set.html#hb-set-t" title="hb_set_t"><span class="type">hb_set_t</span></a> *glyphs</code></em>);</pre>
 744 <p class="since">Since: <a class="link" href="api-index-0-9-7.html#api-index-0.9.7">0.9.7</a></p>
 745 </div>
 746 <hr>
 747 <div class="refsect2">
 748 <a name="hb-ot-layout-get-ligature-carets"></a><h3>hb_ot_layout_get_ligature_carets ()</h3>
 749 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 750 hb_ot_layout_get_ligature_carets (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t" title="hb_font_t"><span class="type">hb_font_t</span></a> *font</code></em>,
 751                                   <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-direction-t" title="enum hb_direction_t"><span class="type">hb_direction_t</span></a> direction</code></em>,
 752                                   <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>,
 753                                   <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 754                                   <em class="parameter"><code>unsigned <span class="type">int</span> *caret_count</code></em>,
 755                                   <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="type">hb_position_t</span></a> *caret_array</code></em>);</pre>
 756 </div>
 757 <hr>
 758 <div class="refsect2">
 759 <a name="hb-ot-layout-get-size-params"></a><h3>hb_ot_layout_get_size_params ()</h3>
 760 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 761 hb_ot_layout_get_size_params (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 762                               <em class="parameter"><code>unsigned <span class="type">int</span> *design_size</code></em>,
 763                               <em class="parameter"><code>unsigned <span class="type">int</span> *subfamily_id</code></em>,
 764                               <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-name.html#hb-ot-name-id-t" title="hb_ot_name_id_t"><span class="type">hb_ot_name_id_t</span></a> *subfamily_name_id</code></em>,
 765                               <em class="parameter"><code>unsigned <span class="type">int</span> *range_start</code></em>,
 766                               <em class="parameter"><code>unsigned <span class="type">int</span> *range_end</code></em>);</pre>
 767 <p class="since">Since: <a class="link" href="api-index-0-9-10.html#api-index-0.9.10">0.9.10</a></p>
 768 </div>
 769 <hr>
 770 <div class="refsect2">
 771 <a name="hb-ot-layout-glyph-sequence-func-t"></a><h3>hb_ot_layout_glyph_sequence_func_t ()</h3>
 772 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 773 <span class="c_punctuation">(</span>*hb_ot_layout_glyph_sequence_func_t<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t" title="hb_font_t"><span class="type">hb_font_t</span></a> *font</code></em>,
 774                                        <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 775                                        <em class="parameter"><code>unsigned <span class="type">int</span> lookup_index</code></em>,
 776                                        <em class="parameter"><code>const <span class="type">hb_ot_layout_glyph_sequence_t</span> *sequence</code></em>,
 777                                        <em class="parameter"><code><span class="type">void</span> *user_data</code></em>);</pre>
 778 </div>
 779 <hr>
 780 <div class="refsect2">
 781 <a name="hb-ot-layout-has-glyph-classes"></a><h3>hb_ot_layout_has_glyph_classes ()</h3>
 782 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 783 hb_ot_layout_has_glyph_classes (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>);</pre>
 784 </div>
 785 <hr>
 786 <div class="refsect2">
 787 <a name="hb-ot-layout-has-positioning"></a><h3>hb_ot_layout_has_positioning ()</h3>
 788 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 789 hb_ot_layout_has_positioning (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>);</pre>
 790 </div>
 791 <hr>
 792 <div class="refsect2">
 793 <a name="hb-ot-layout-has-substitution"></a><h3>hb_ot_layout_has_substitution ()</h3>
 794 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 795 hb_ot_layout_has_substitution (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>);</pre>
 796 </div>
 797 <hr>
 798 <div class="refsect2">
 799 <a name="hb-ot-layout-language-find-feature"></a><h3>hb_ot_layout_language_find_feature ()</h3>
 800 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 801 hb_ot_layout_language_find_feature (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 802                                     <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 803                                     <em class="parameter"><code>unsigned <span class="type">int</span> script_index</code></em>,
 804                                     <em class="parameter"><code>unsigned <span class="type">int</span> language_index</code></em>,
 805                                     <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> feature_tag</code></em>,
 806                                     <em class="parameter"><code>unsigned <span class="type">int</span> *feature_index</code></em>);</pre>
 807 </div>
 808 <hr>
 809 <div class="refsect2">
 810 <a name="hb-ot-layout-language-get-feature-indexes"></a><h3>hb_ot_layout_language_get_feature_indexes ()</h3>
 811 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 812 hb_ot_layout_language_get_feature_indexes
 813                                (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 814                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 815                                 <em class="parameter"><code>unsigned <span class="type">int</span> script_index</code></em>,
 816                                 <em class="parameter"><code>unsigned <span class="type">int</span> language_index</code></em>,
 817                                 <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 818                                 <em class="parameter"><code>unsigned <span class="type">int</span> *feature_count</code></em>,
 819                                 <em class="parameter"><code>unsigned <span class="type">int</span> *feature_indexes</code></em>);</pre>
 820 </div>
 821 <hr>
 822 <div class="refsect2">
 823 <a name="hb-ot-layout-language-get-feature-tags"></a><h3>hb_ot_layout_language_get_feature_tags ()</h3>
 824 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 825 hb_ot_layout_language_get_feature_tags
 826                                (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 827                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 828                                 <em class="parameter"><code>unsigned <span class="type">int</span> script_index</code></em>,
 829                                 <em class="parameter"><code>unsigned <span class="type">int</span> language_index</code></em>,
 830                                 <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 831                                 <em class="parameter"><code>unsigned <span class="type">int</span> *feature_count</code></em>,
 832                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *feature_tags</code></em>);</pre>
 833 </div>
 834 <hr>
 835 <div class="refsect2">
 836 <a name="hb-ot-layout-language-get-required-feature"></a><h3>hb_ot_layout_language_get_required_feature ()</h3>
 837 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 838 hb_ot_layout_language_get_required_feature
 839                                (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 840                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 841                                 <em class="parameter"><code>unsigned <span class="type">int</span> script_index</code></em>,
 842                                 <em class="parameter"><code>unsigned <span class="type">int</span> language_index</code></em>,
 843                                 <em class="parameter"><code>unsigned <span class="type">int</span> *feature_index</code></em>,
 844                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *feature_tag</code></em>);</pre>
 845 <p class="since">Since: <a class="link" href="api-index-0-9-30.html#api-index-0.9.30">0.9.30</a></p>
 846 </div>
 847 <hr>
 848 <div class="refsect2">
 849 <a name="hb-ot-layout-lookup-collect-glyphs"></a><h3>hb_ot_layout_lookup_collect_glyphs ()</h3>
 850 <pre class="programlisting"><span class="returnvalue">void</span>
 851 hb_ot_layout_lookup_collect_glyphs (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 852                                     <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 853                                     <em class="parameter"><code>unsigned <span class="type">int</span> lookup_index</code></em>,
 854                                     <em class="parameter"><code><a class="link" href="harfbuzz-hb-set.html#hb-set-t" title="hb_set_t"><span class="type">hb_set_t</span></a> *glyphs_before</code></em>,
 855                                     <em class="parameter"><code><a class="link" href="harfbuzz-hb-set.html#hb-set-t" title="hb_set_t"><span class="type">hb_set_t</span></a> *glyphs_input</code></em>,
 856                                     <em class="parameter"><code><a class="link" href="harfbuzz-hb-set.html#hb-set-t" title="hb_set_t"><span class="type">hb_set_t</span></a> *glyphs_after</code></em>,
 857                                     <em class="parameter"><code><a class="link" href="harfbuzz-hb-set.html#hb-set-t" title="hb_set_t"><span class="type">hb_set_t</span></a> *glyphs_output</code></em>);</pre>
 858 <p class="since">Since: <a class="link" href="api-index-0-9-7.html#api-index-0.9.7">0.9.7</a></p>
 859 </div>
 860 <hr>
 861 <div class="refsect2">
 862 <a name="hb-ot-layout-lookup-substitute-closure"></a><h3>hb_ot_layout_lookup_substitute_closure ()</h3>
 863 <pre class="programlisting"><span class="returnvalue">void</span>
 864 hb_ot_layout_lookup_substitute_closure
 865                                (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 866                                 <em class="parameter"><code>unsigned <span class="type">int</span> lookup_index</code></em>,
 867                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-set.html#hb-set-t" title="hb_set_t"><span class="type">hb_set_t</span></a> *glyphs</code></em>);</pre>
 868 <p class="since">Since: <a class="link" href="api-index-0-9-7.html#api-index-0.9.7">0.9.7</a></p>
 869 </div>
 870 <hr>
 871 <div class="refsect2">
 872 <a name="hb-ot-layout-lookups-substitute-closure"></a><h3>hb_ot_layout_lookups_substitute_closure ()</h3>
 873 <pre class="programlisting"><span class="returnvalue">void</span>
 874 hb_ot_layout_lookups_substitute_closure
 875                                (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 876                                 <em class="parameter"><code>const <a class="link" href="harfbuzz-hb-set.html#hb-set-t" title="hb_set_t"><span class="type">hb_set_t</span></a> *lookups</code></em>,
 877                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-set.html#hb-set-t" title="hb_set_t"><span class="type">hb_set_t</span></a> *glyphs</code></em>);</pre>
 878 <p>Compute the transitive closure of glyphs needed for all of the
 879 provided lookups.</p>
 880 <p class="since">Since: <a class="link" href="api-index-1-8-1.html#api-index-1.8.1">1.8.1</a></p>
 881 </div>
 882 <hr>
 883 <div class="refsect2">
 884 <a name="hb-ot-layout-lookup-would-substitute"></a><h3>hb_ot_layout_lookup_would_substitute ()</h3>
 885 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 886 hb_ot_layout_lookup_would_substitute (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 887                                       <em class="parameter"><code>unsigned <span class="type">int</span> lookup_index</code></em>,
 888                                       <em class="parameter"><code>const <a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> *glyphs</code></em>,
 889                                       <em class="parameter"><code>unsigned <span class="type">int</span> glyphs_length</code></em>,
 890                                       <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="type">hb_bool_t</span></a> zero_context</code></em>);</pre>
 891 <p class="since">Since: <a class="link" href="api-index-0-9-7.html#api-index-0.9.7">0.9.7</a></p>
 892 </div>
 893 <hr>
 894 <div class="refsect2">
 895 <a name="hb-ot-layout-script-get-language-tags"></a><h3>hb_ot_layout_script_get_language_tags ()</h3>
 896 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 897 hb_ot_layout_script_get_language_tags (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 898                                        <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 899                                        <em class="parameter"><code>unsigned <span class="type">int</span> script_index</code></em>,
 900                                        <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 901                                        <em class="parameter"><code>unsigned <span class="type">int</span> *language_count</code></em>,
 902                                        <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *language_tags</code></em>);</pre>
 903 </div>
 904 <hr>
 905 <div class="refsect2">
 906 <a name="hb-ot-layout-script-select-language"></a><h3>hb_ot_layout_script_select_language ()</h3>
 907 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 908 hb_ot_layout_script_select_language (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 909                                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 910                                      <em class="parameter"><code>unsigned <span class="type">int</span> script_index</code></em>,
 911                                      <em class="parameter"><code>unsigned <span class="type">int</span> language_count</code></em>,
 912                                      <em class="parameter"><code>const <a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *language_tags</code></em>,
 913                                      <em class="parameter"><code>unsigned <span class="type">int</span> *language_index</code></em>);</pre>
 914 <p class="since">Since: <a class="link" href="api-index-2-0-0.html#api-index-2.0.0">2.0.0</a></p>
 915 </div>
 916 <hr>
 917 <div class="refsect2">
 918 <a name="hb-ot-layout-table-find-feature-variations"></a><h3>hb_ot_layout_table_find_feature_variations ()</h3>
 919 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 920 hb_ot_layout_table_find_feature_variations
 921                                (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 922                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 923                                 <em class="parameter"><code>const <span class="type">int</span> *coords</code></em>,
 924                                 <em class="parameter"><code>unsigned <span class="type">int</span> num_coords</code></em>,
 925                                 <em class="parameter"><code>unsigned <span class="type">int</span> *variations_index</code></em>);</pre>
 926 </div>
 927 <hr>
 928 <div class="refsect2">
 929 <a name="hb-ot-layout-table-get-feature-tags"></a><h3>hb_ot_layout_table_get_feature_tags ()</h3>
 930 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 931 hb_ot_layout_table_get_feature_tags (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 932                                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 933                                      <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 934                                      <em class="parameter"><code>unsigned <span class="type">int</span> *feature_count</code></em>,
 935                                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *feature_tags</code></em>);</pre>
 936 </div>
 937 <hr>
 938 <div class="refsect2">
 939 <a name="hb-ot-layout-table-get-script-tags"></a><h3>hb_ot_layout_table_get_script_tags ()</h3>
 940 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 941 hb_ot_layout_table_get_script_tags (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 942                                     <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 943                                     <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 944                                     <em class="parameter"><code>unsigned <span class="type">int</span> *script_count</code></em>,
 945                                     <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *script_tags</code></em>);</pre>
 946 </div>
 947 <hr>
 948 <div class="refsect2">
 949 <a name="hb-ot-layout-table-get-lookup-count"></a><h3>hb_ot_layout_table_get_lookup_count ()</h3>
 950 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 951 hb_ot_layout_table_get_lookup_count (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 952                                      <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>);</pre>
 953 <p class="since">Since: <a class="link" href="api-index-0-9-22.html#api-index-0.9.22">0.9.22</a></p>
 954 </div>
 955 <hr>
 956 <div class="refsect2">
 957 <a name="hb-ot-layout-table-select-script"></a><h3>hb_ot_layout_table_select_script ()</h3>
 958 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 959 hb_ot_layout_table_select_script (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 960                                   <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 961                                   <em class="parameter"><code>unsigned <span class="type">int</span> script_count</code></em>,
 962                                   <em class="parameter"><code>const <a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *script_tags</code></em>,
 963                                   <em class="parameter"><code>unsigned <span class="type">int</span> *script_index</code></em>,
 964                                   <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> *chosen_script</code></em>);</pre>
 965 <p class="since">Since: <a class="link" href="api-index-2-0-0.html#api-index-2.0.0">2.0.0</a></p>
 966 </div>
 967 <hr>
 968 <div class="refsect2">
 969 <a name="hb-ot-shape-plan-collect-lookups"></a><h3>hb_ot_shape_plan_collect_lookups ()</h3>
 970 <pre class="programlisting"><span class="returnvalue">void</span>
 971 hb_ot_shape_plan_collect_lookups (<em class="parameter"><code><a class="link" href="harfbuzz-hb-shape-plan.html#hb-shape-plan-t" title="hb_shape_plan_t"><span class="type">hb_shape_plan_t</span></a> *shape_plan</code></em>,
 972                                   <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 973                                   <em class="parameter"><code><a class="link" href="harfbuzz-hb-set.html#hb-set-t" title="hb_set_t"><span class="type">hb_set_t</span></a> *lookup_indexes</code></em>);</pre>
 974 <p class="since">Since: <a class="link" href="api-index-0-9-7.html#api-index-0.9.7">0.9.7</a></p>
 975 </div>
 976 <hr>
 977 <div class="refsect2">
 978 <a name="hb-ot-layout-language-get-required-feature-index"></a><h3>hb_ot_layout_language_get_required_feature_index ()</h3>
 979 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 980 hb_ot_layout_language_get_required_feature_index
 981                                (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t" title="hb_face_t"><span class="type">hb_face_t</span></a> *face</code></em>,
 982                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-tag-t" title="hb_tag_t"><span class="type">hb_tag_t</span></a> table_tag</code></em>,
 983                                 <em class="parameter"><code>unsigned <span class="type">int</span> script_index</code></em>,
 984                                 <em class="parameter"><code>unsigned <span class="type">int</span> language_index</code></em>,
 985                                 <em class="parameter"><code>unsigned <span class="type">int</span> *feature_index</code></em>);</pre>
 986 </div>
 987 </div>
 988 <div class="refsect1">
 989 <a name="harfbuzz-hb-ot-layout.other_details"></a><h2>Types and Values</h2>
 990 <div class="refsect2">
 991 <a name="HB-OT-MAX-TAGS-PER-LANGUAGE:CAPS"></a><h3>HB_OT_MAX_TAGS_PER_LANGUAGE</h3>
 992 <pre class="programlisting">#define HB_OT_MAX_TAGS_PER_LANGUAGE 3u
 993 </pre>
 994 <p class="since">Since: <a class="link" href="api-index-2-0-0.html#api-index-2.0.0">2.0.0</a></p>
 995 </div>
 996 <hr>
 997 <div class="refsect2">
 998 <a name="HB-OT-MAX-TAGS-PER-SCRIPT:CAPS"></a><h3>HB_OT_MAX_TAGS_PER_SCRIPT</h3>
 999 <pre class="programlisting">#define HB_OT_MAX_TAGS_PER_SCRIPT 3u
1000 </pre>
1001 <p class="since">Since: <a class="link" href="api-index-2-0-0.html#api-index-2.0.0">2.0.0</a></p>
1002 </div>
1003 <hr>
1004 <div class="refsect2">
1005 <a name="HB-OT-TAG-DEFAULT-LANGUAGE:CAPS"></a><h3>HB_OT_TAG_DEFAULT_LANGUAGE</h3>
1006 <pre class="programlisting">#define HB_OT_TAG_DEFAULT_LANGUAGE HB_TAG ('d', 'f', 'l', 't')
1007 </pre>
1008 </div>
1009 <hr>
1010 <div class="refsect2">
1011 <a name="HB-OT-TAG-DEFAULT-SCRIPT:CAPS"></a><h3>HB_OT_TAG_DEFAULT_SCRIPT</h3>
1012 <pre class="programlisting">#define HB_OT_TAG_DEFAULT_SCRIPT HB_TAG ('D', 'F', 'L', 'T')
1013 </pre>
1014 </div>
1015 <hr>
1016 <div class="refsect2">
1017 <a name="HB-OT-LAYOUT-DEFAULT-LANGUAGE-INDEX:CAPS"></a><h3>HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX</h3>
1018 <pre class="programlisting">#define HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX 0xFFFFu
1019 </pre>
1020 </div>
1021 <hr>
1022 <div class="refsect2">
1023 <a name="HB-OT-LAYOUT-NO-FEATURE-INDEX:CAPS"></a><h3>HB_OT_LAYOUT_NO_FEATURE_INDEX</h3>
1024 <pre class="programlisting">#define HB_OT_LAYOUT_NO_FEATURE_INDEX               0xFFFFu
1025 </pre>
1026 </div>
1027 <hr>
1028 <div class="refsect2">
1029 <a name="HB-OT-LAYOUT-NO-SCRIPT-INDEX:CAPS"></a><h3>HB_OT_LAYOUT_NO_SCRIPT_INDEX</h3>
1030 <pre class="programlisting">#define HB_OT_LAYOUT_NO_SCRIPT_INDEX                0xFFFFu
1031 </pre>
1032 </div>
1033 <hr>
1034 <div class="refsect2">
1035 <a name="HB-OT-LAYOUT-NO-VARIATIONS-INDEX:CAPS"></a><h3>HB_OT_LAYOUT_NO_VARIATIONS_INDEX</h3>
1036 <pre class="programlisting">#define HB_OT_LAYOUT_NO_VARIATIONS_INDEX 0xFFFFFFFFu
1037 </pre>
1038 </div>
1039 <hr>
1040 <div class="refsect2">
1041 <a name="HB-OT-TAG-BASE:CAPS"></a><h3>HB_OT_TAG_BASE</h3>
1042 <pre class="programlisting">#define HB_OT_TAG_BASE HB_TAG('B','A','S','E')
1043 </pre>
1044 </div>
1045 <hr>
1046 <div class="refsect2">
1047 <a name="HB-OT-TAG-GDEF:CAPS"></a><h3>HB_OT_TAG_GDEF</h3>
1048 <pre class="programlisting">#define HB_OT_TAG_GDEF HB_TAG('G','D','E','F')
1049 </pre>
1050 </div>
1051 <hr>
1052 <div class="refsect2">
1053 <a name="HB-OT-TAG-GPOS:CAPS"></a><h3>HB_OT_TAG_GPOS</h3>
1054 <pre class="programlisting">#define HB_OT_TAG_GPOS HB_TAG('G','P','O','S')
1055 </pre>
1056 </div>
1057 <hr>
1058 <div class="refsect2">
1059 <a name="HB-OT-TAG-GSUB:CAPS"></a><h3>HB_OT_TAG_GSUB</h3>
1060 <pre class="programlisting">#define HB_OT_TAG_GSUB HB_TAG('G','S','U','B')
1061 </pre>
1062 </div>
1063 <hr>
1064 <div class="refsect2">
1065 <a name="HB-OT-TAG-JSTF:CAPS"></a><h3>HB_OT_TAG_JSTF</h3>
1066 <pre class="programlisting">#define HB_OT_TAG_JSTF HB_TAG('J','S','T','F')
1067 </pre>
1068 </div>
1069 <hr>
1070 <div class="refsect2">
1071 <a name="hb-ot-layout-glyph-class-t"></a><h3>enum hb_ot_layout_glyph_class_t</h3>
1072 <div class="refsect3">
1073 <a name="hb-ot-layout-glyph-class-t.members"></a><h4>Members</h4>
1074 <div class="informaltable"><table class="informaltable" width="100%" border="0">
1075 <colgroup>
1076 <col width="300px" class="enum_members_name">
1077 <col class="enum_members_description">
1078 <col width="200px" class="enum_members_annotations">
1079 </colgroup>
1080 <tbody>
1081 <tr>
1082 <td class="enum_member_name"><p><a name="HB-OT-LAYOUT-GLYPH-CLASS-UNCLASSIFIED:CAPS"></a>HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED</p></td>
1083 <td> </td>
1084 <td> </td>
1085 </tr>
1086 <tr>
1087 <td class="enum_member_name"><p><a name="HB-OT-LAYOUT-GLYPH-CLASS-BASE-GLYPH:CAPS"></a>HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH</p></td>
1088 <td> </td>
1089 <td> </td>
1090 </tr>
1091 <tr>
1092 <td class="enum_member_name"><p><a name="HB-OT-LAYOUT-GLYPH-CLASS-LIGATURE:CAPS"></a>HB_OT_LAYOUT_GLYPH_CLASS_LIGATURE</p></td>
1093 <td> </td>
1094 <td> </td>
1095 </tr>
1096 <tr>
1097 <td class="enum_member_name"><p><a name="HB-OT-LAYOUT-GLYPH-CLASS-MARK:CAPS"></a>HB_OT_LAYOUT_GLYPH_CLASS_MARK</p></td>
1098 <td> </td>
1099 <td> </td>
1100 </tr>
1101 <tr>
1102 <td class="enum_member_name"><p><a name="HB-OT-LAYOUT-GLYPH-CLASS-COMPONENT:CAPS"></a>HB_OT_LAYOUT_GLYPH_CLASS_COMPONENT</p></td>
1103 <td> </td>
1104 <td> </td>
1105 </tr>
1106 </tbody>
1107 </table></div>
1108 </div>
1109 </div>
1110 </div>
1111 </div>
1112 <div class="footer">
1113 <hr>Generated by GTK-Doc V1.29</div>
1114 </body>
1115 </html>