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  6. <title>FreeType-2.4.3 API Reference</title>
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  29. <table align=center><tr><td><font size=-1>[<a href="ft2-index.html">Index</a>]</font></td>
  30. <td width="100%"></td>
  31. <td><font size=-1>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  32. <center><h1>FreeType-2.4.3 API Reference</h1></center>
  33. <center><h1>
  34. Basic Data Types
  35. </h1></center>
  36. <h2>Synopsis</h2>
  37. <table align=center cellspacing=5 cellpadding=0 border=0>
  38. <tr><td></td><td><a href="#FT_Byte">FT_Byte</a></td><td></td><td><a href="#FT_Offset">FT_Offset</a></td><td></td><td><a href="#FT_UnitVector">FT_UnitVector</a></td></tr>
  39. <tr><td></td><td><a href="#FT_Bytes">FT_Bytes</a></td><td></td><td><a href="#FT_PtrDist">FT_PtrDist</a></td><td></td><td><a href="#FT_F26Dot6">FT_F26Dot6</a></td></tr>
  40. <tr><td></td><td><a href="#FT_Char">FT_Char</a></td><td></td><td><a href="#FT_String">FT_String</a></td><td></td><td><a href="#FT_Pixel_Mode">FT_Pixel_Mode</a></td></tr>
  41. <tr><td></td><td><a href="#FT_Int">FT_Int</a></td><td></td><td><a href="#FT_Tag">FT_Tag</a></td><td></td><td><a href="#ft_pixel_mode_xxx">ft_pixel_mode_xxx</a></td></tr>
  42. <tr><td></td><td><a href="#FT_UInt">FT_UInt</a></td><td></td><td><a href="#FT_Error">FT_Error</a></td><td></td><td><a href="#FT_Palette_Mode">FT_Palette_Mode</a></td></tr>
  43. <tr><td></td><td><a href="#FT_Int16">FT_Int16</a></td><td></td><td><a href="#FT_Fixed">FT_Fixed</a></td><td></td><td><a href="#FT_Bitmap">FT_Bitmap</a></td></tr>
  44. <tr><td></td><td><a href="#FT_UInt16">FT_UInt16</a></td><td></td><td><a href="#FT_Pointer">FT_Pointer</a></td><td></td><td><a href="#FT_IMAGE_TAG">FT_IMAGE_TAG</a></td></tr>
  45. <tr><td></td><td><a href="#FT_Int32">FT_Int32</a></td><td></td><td><a href="#FT_Pos">FT_Pos</a></td><td></td><td><a href="#FT_Glyph_Format">FT_Glyph_Format</a></td></tr>
  46. <tr><td></td><td><a href="#FT_UInt32">FT_UInt32</a></td><td></td><td><a href="#FT_Vector">FT_Vector</a></td><td></td><td><a href="#ft_glyph_format_xxx">ft_glyph_format_xxx</a></td></tr>
  47. <tr><td></td><td><a href="#FT_Short">FT_Short</a></td><td></td><td><a href="#FT_BBox">FT_BBox</a></td><td></td><td><a href="#FT_Data">FT_Data</a></td></tr>
  48. <tr><td></td><td><a href="#FT_UShort">FT_UShort</a></td><td></td><td><a href="#FT_Matrix">FT_Matrix</a></td><td></td><td><a href="#FT_Generic_Finalizer">FT_Generic_Finalizer</a></td></tr>
  49. <tr><td></td><td><a href="#FT_Long">FT_Long</a></td><td></td><td><a href="#FT_FWord">FT_FWord</a></td><td></td><td><a href="#FT_Generic">FT_Generic</a></td></tr>
  50. <tr><td></td><td><a href="#FT_ULong">FT_ULong</a></td><td></td><td><a href="#FT_UFWord">FT_UFWord</a></td><td></td><td><a href="#FT_MAKE_TAG">FT_MAKE_TAG</a></td></tr>
  51. <tr><td></td><td><a href="#FT_Bool">FT_Bool</a></td><td></td><td><a href="#FT_F2Dot14">FT_F2Dot14</a></td><td></td><td></td></tr>
  52. </table><br><br>
  53. <table align=center width="87%"><tr><td>
  54. <p>This section contains the basic data types defined by FreeType&nbsp;2, ranging from simple scalar types to bitmap descriptors. More font-specific structures are defined in a different section.</p>
  55. </td></tr></table><br>
  56. <table align=center width="75%"><tr><td>
  57. <h4><a name="FT_Byte">FT_Byte</a></h4>
  58. <table align=center width="87%"><tr><td>
  59. Defined in FT_TYPES_H (freetype/fttypes.h).
  60. </td></tr></table><br>
  61. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  62. <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">char</span> <b>FT_Byte</b>;
  63. </pre></table><br>
  64. <table align=center width="87%"><tr><td>
  65. <p>A simple typedef for the <i>unsigned</i> char type.</p>
  66. </td></tr></table><br>
  67. </td></tr></table>
  68. <hr width="75%">
  69. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  70. <td width="100%"></td>
  71. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  72. <table align=center width="75%"><tr><td>
  73. <h4><a name="FT_Bytes">FT_Bytes</a></h4>
  74. <table align=center width="87%"><tr><td>
  75. Defined in FT_TYPES_H (freetype/fttypes.h).
  76. </td></tr></table><br>
  77. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  78. <span class="keyword">typedef</span> <span class="keyword">const</span> <a href="ft2-basic_types.html#FT_Byte">FT_Byte</a>* <b>FT_Bytes</b>;
  79. </pre></table><br>
  80. <table align=center width="87%"><tr><td>
  81. <p>A typedef for constant memory areas.</p>
  82. </td></tr></table><br>
  83. </td></tr></table>
  84. <hr width="75%">
  85. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  86. <td width="100%"></td>
  87. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  88. <table align=center width="75%"><tr><td>
  89. <h4><a name="FT_Char">FT_Char</a></h4>
  90. <table align=center width="87%"><tr><td>
  91. Defined in FT_TYPES_H (freetype/fttypes.h).
  92. </td></tr></table><br>
  93. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  94. <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">char</span> <b>FT_Char</b>;
  95. </pre></table><br>
  96. <table align=center width="87%"><tr><td>
  97. <p>A simple typedef for the <i>signed</i> char type.</p>
  98. </td></tr></table><br>
  99. </td></tr></table>
  100. <hr width="75%">
  101. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  102. <td width="100%"></td>
  103. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  104. <table align=center width="75%"><tr><td>
  105. <h4><a name="FT_Int">FT_Int</a></h4>
  106. <table align=center width="87%"><tr><td>
  107. Defined in FT_TYPES_H (freetype/fttypes.h).
  108. </td></tr></table><br>
  109. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  110. <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">int</span> <b>FT_Int</b>;
  111. </pre></table><br>
  112. <table align=center width="87%"><tr><td>
  113. <p>A typedef for the int type.</p>
  114. </td></tr></table><br>
  115. </td></tr></table>
  116. <hr width="75%">
  117. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  118. <td width="100%"></td>
  119. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  120. <table align=center width="75%"><tr><td>
  121. <h4><a name="FT_UInt">FT_UInt</a></h4>
  122. <table align=center width="87%"><tr><td>
  123. Defined in FT_TYPES_H (freetype/fttypes.h).
  124. </td></tr></table><br>
  125. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  126. <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">int</span> <b>FT_UInt</b>;
  127. </pre></table><br>
  128. <table align=center width="87%"><tr><td>
  129. <p>A typedef for the unsigned int type.</p>
  130. </td></tr></table><br>
  131. </td></tr></table>
  132. <hr width="75%">
  133. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  134. <td width="100%"></td>
  135. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  136. <table align=center width="75%"><tr><td>
  137. <h4><a name="FT_Int16">FT_Int16</a></h4>
  138. <table align=center width="87%"><tr><td>
  139. Defined in FT_CONFIG_CONFIG_H (freetype/config/ftconfig.h).
  140. </td></tr></table><br>
  141. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  142. <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">short</span> <b>FT_Int16</b>;
  143. </pre></table><br>
  144. <table align=center width="87%"><tr><td>
  145. <p>A typedef for a 16bit signed integer type.</p>
  146. </td></tr></table><br>
  147. </td></tr></table>
  148. <hr width="75%">
  149. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  150. <td width="100%"></td>
  151. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  152. <table align=center width="75%"><tr><td>
  153. <h4><a name="FT_UInt16">FT_UInt16</a></h4>
  154. <table align=center width="87%"><tr><td>
  155. Defined in FT_CONFIG_CONFIG_H (freetype/config/ftconfig.h).
  156. </td></tr></table><br>
  157. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  158. <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">short</span> <b>FT_UInt16</b>;
  159. </pre></table><br>
  160. <table align=center width="87%"><tr><td>
  161. <p>A typedef for a 16bit unsigned integer type.</p>
  162. </td></tr></table><br>
  163. </td></tr></table>
  164. <hr width="75%">
  165. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  166. <td width="100%"></td>
  167. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  168. <table align=center width="75%"><tr><td>
  169. <h4><a name="FT_Int32">FT_Int32</a></h4>
  170. <table align=center width="87%"><tr><td>
  171. Defined in FT_CONFIG_CONFIG_H (freetype/config/ftconfig.h).
  172. </td></tr></table><br>
  173. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  174. <span class="keyword">typedef</span> <span class="keyword">signed</span> XXX <b>FT_Int32</b>;
  175. </pre></table><br>
  176. <table align=center width="87%"><tr><td>
  177. <p>A typedef for a 32bit signed integer type. The size depends on the configuration.</p>
  178. </td></tr></table><br>
  179. </td></tr></table>
  180. <hr width="75%">
  181. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  182. <td width="100%"></td>
  183. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  184. <table align=center width="75%"><tr><td>
  185. <h4><a name="FT_UInt32">FT_UInt32</a></h4>
  186. <table align=center width="87%"><tr><td>
  187. Defined in FT_CONFIG_CONFIG_H (freetype/config/ftconfig.h).
  188. </td></tr></table><br>
  189. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  190. <span class="keyword">typedef</span> <span class="keyword">unsigned</span> XXX <b>FT_UInt32</b>;
  191. </pre></table><br>
  192. </td></tr></table>
  193. <hr width="75%">
  194. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  195. <td width="100%"></td>
  196. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  197. <table align=center width="75%"><tr><td>
  198. <h4><a name="FT_Short">FT_Short</a></h4>
  199. <table align=center width="87%"><tr><td>
  200. Defined in FT_TYPES_H (freetype/fttypes.h).
  201. </td></tr></table><br>
  202. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  203. <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">short</span> <b>FT_Short</b>;
  204. </pre></table><br>
  205. <table align=center width="87%"><tr><td>
  206. <p>A typedef for signed short.</p>
  207. </td></tr></table><br>
  208. </td></tr></table>
  209. <hr width="75%">
  210. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  211. <td width="100%"></td>
  212. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  213. <table align=center width="75%"><tr><td>
  214. <h4><a name="FT_UShort">FT_UShort</a></h4>
  215. <table align=center width="87%"><tr><td>
  216. Defined in FT_TYPES_H (freetype/fttypes.h).
  217. </td></tr></table><br>
  218. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  219. <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">short</span> <b>FT_UShort</b>;
  220. </pre></table><br>
  221. <table align=center width="87%"><tr><td>
  222. <p>A typedef for unsigned short.</p>
  223. </td></tr></table><br>
  224. </td></tr></table>
  225. <hr width="75%">
  226. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  227. <td width="100%"></td>
  228. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  229. <table align=center width="75%"><tr><td>
  230. <h4><a name="FT_Long">FT_Long</a></h4>
  231. <table align=center width="87%"><tr><td>
  232. Defined in FT_TYPES_H (freetype/fttypes.h).
  233. </td></tr></table><br>
  234. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  235. <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">long</span> <b>FT_Long</b>;
  236. </pre></table><br>
  237. <table align=center width="87%"><tr><td>
  238. <p>A typedef for signed long.</p>
  239. </td></tr></table><br>
  240. </td></tr></table>
  241. <hr width="75%">
  242. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  243. <td width="100%"></td>
  244. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  245. <table align=center width="75%"><tr><td>
  246. <h4><a name="FT_ULong">FT_ULong</a></h4>
  247. <table align=center width="87%"><tr><td>
  248. Defined in FT_TYPES_H (freetype/fttypes.h).
  249. </td></tr></table><br>
  250. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  251. <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">long</span> <b>FT_ULong</b>;
  252. </pre></table><br>
  253. <table align=center width="87%"><tr><td>
  254. <p>A typedef for unsigned long.</p>
  255. </td></tr></table><br>
  256. </td></tr></table>
  257. <hr width="75%">
  258. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  259. <td width="100%"></td>
  260. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  261. <table align=center width="75%"><tr><td>
  262. <h4><a name="FT_Bool">FT_Bool</a></h4>
  263. <table align=center width="87%"><tr><td>
  264. Defined in FT_TYPES_H (freetype/fttypes.h).
  265. </td></tr></table><br>
  266. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  267. <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">char</span> <b>FT_Bool</b>;
  268. </pre></table><br>
  269. <table align=center width="87%"><tr><td>
  270. <p>A typedef of unsigned char, used for simple booleans. As usual, values 1 and&nbsp;0 represent true and false, respectively.</p>
  271. </td></tr></table><br>
  272. </td></tr></table>
  273. <hr width="75%">
  274. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  275. <td width="100%"></td>
  276. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  277. <table align=center width="75%"><tr><td>
  278. <h4><a name="FT_Offset">FT_Offset</a></h4>
  279. <table align=center width="87%"><tr><td>
  280. Defined in FT_TYPES_H (freetype/fttypes.h).
  281. </td></tr></table><br>
  282. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  283. <span class="keyword">typedef</span> size_t <b>FT_Offset</b>;
  284. </pre></table><br>
  285. <table align=center width="87%"><tr><td>
  286. <p>This is equivalent to the ANSI&nbsp;C &lsquo;size_t&rsquo; type, i.e., the largest <i>unsigned</i> integer type used to express a file size or position, or a memory block size.</p>
  287. </td></tr></table><br>
  288. </td></tr></table>
  289. <hr width="75%">
  290. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  291. <td width="100%"></td>
  292. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  293. <table align=center width="75%"><tr><td>
  294. <h4><a name="FT_PtrDist">FT_PtrDist</a></h4>
  295. <table align=center width="87%"><tr><td>
  296. Defined in FT_TYPES_H (freetype/fttypes.h).
  297. </td></tr></table><br>
  298. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  299. <span class="keyword">typedef</span> ft_ptrdiff_t <b>FT_PtrDist</b>;
  300. </pre></table><br>
  301. <table align=center width="87%"><tr><td>
  302. <p>This is equivalent to the ANSI&nbsp;C &lsquo;ptrdiff_t&rsquo; type, i.e., the largest <i>signed</i> integer type used to express the distance between two pointers.</p>
  303. </td></tr></table><br>
  304. </td></tr></table>
  305. <hr width="75%">
  306. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  307. <td width="100%"></td>
  308. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  309. <table align=center width="75%"><tr><td>
  310. <h4><a name="FT_String">FT_String</a></h4>
  311. <table align=center width="87%"><tr><td>
  312. Defined in FT_TYPES_H (freetype/fttypes.h).
  313. </td></tr></table><br>
  314. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  315. <span class="keyword">typedef</span> <span class="keyword">char</span> <b>FT_String</b>;
  316. </pre></table><br>
  317. <table align=center width="87%"><tr><td>
  318. <p>A simple typedef for the char type, usually used for strings.</p>
  319. </td></tr></table><br>
  320. </td></tr></table>
  321. <hr width="75%">
  322. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  323. <td width="100%"></td>
  324. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  325. <table align=center width="75%"><tr><td>
  326. <h4><a name="FT_Tag">FT_Tag</a></h4>
  327. <table align=center width="87%"><tr><td>
  328. Defined in FT_TYPES_H (freetype/fttypes.h).
  329. </td></tr></table><br>
  330. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  331. <span class="keyword">typedef</span> <a href="ft2-basic_types.html#FT_UInt32">FT_UInt32</a> <b>FT_Tag</b>;
  332. </pre></table><br>
  333. <table align=center width="87%"><tr><td>
  334. <p>A typedef for 32-bit tags (as used in the SFNT format).</p>
  335. </td></tr></table><br>
  336. </td></tr></table>
  337. <hr width="75%">
  338. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  339. <td width="100%"></td>
  340. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  341. <table align=center width="75%"><tr><td>
  342. <h4><a name="FT_Error">FT_Error</a></h4>
  343. <table align=center width="87%"><tr><td>
  344. Defined in FT_TYPES_H (freetype/fttypes.h).
  345. </td></tr></table><br>
  346. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  347. <span class="keyword">typedef</span> <span class="keyword">int</span> <b>FT_Error</b>;
  348. </pre></table><br>
  349. <table align=center width="87%"><tr><td>
  350. <p>The FreeType error code type. A value of&nbsp;0 is always interpreted as a successful operation.</p>
  351. </td></tr></table><br>
  352. </td></tr></table>
  353. <hr width="75%">
  354. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  355. <td width="100%"></td>
  356. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  357. <table align=center width="75%"><tr><td>
  358. <h4><a name="FT_Fixed">FT_Fixed</a></h4>
  359. <table align=center width="87%"><tr><td>
  360. Defined in FT_TYPES_H (freetype/fttypes.h).
  361. </td></tr></table><br>
  362. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  363. <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">long</span> <b>FT_Fixed</b>;
  364. </pre></table><br>
  365. <table align=center width="87%"><tr><td>
  366. <p>This type is used to store 16.16 fixed float values, like scaling values or matrix coefficients.</p>
  367. </td></tr></table><br>
  368. </td></tr></table>
  369. <hr width="75%">
  370. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  371. <td width="100%"></td>
  372. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  373. <table align=center width="75%"><tr><td>
  374. <h4><a name="FT_Pointer">FT_Pointer</a></h4>
  375. <table align=center width="87%"><tr><td>
  376. Defined in FT_TYPES_H (freetype/fttypes.h).
  377. </td></tr></table><br>
  378. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  379. <span class="keyword">typedef</span> <span class="keyword">void</span>* <b>FT_Pointer</b>;
  380. </pre></table><br>
  381. <table align=center width="87%"><tr><td>
  382. <p>A simple typedef for a typeless pointer.</p>
  383. </td></tr></table><br>
  384. </td></tr></table>
  385. <hr width="75%">
  386. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  387. <td width="100%"></td>
  388. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  389. <table align=center width="75%"><tr><td>
  390. <h4><a name="FT_Pos">FT_Pos</a></h4>
  391. <table align=center width="87%"><tr><td>
  392. Defined in FT_IMAGE_H (freetype/ftimage.h).
  393. </td></tr></table><br>
  394. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  395. <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">long</span> <b>FT_Pos</b>;
  396. </pre></table><br>
  397. <table align=center width="87%"><tr><td>
  398. <p>The type FT_Pos is used to store vectorial coordinates. Depending on the context, these can represent distances in integer font units, or 16.16, or 26.6 fixed float pixel coordinates.</p>
  399. </td></tr></table><br>
  400. </td></tr></table>
  401. <hr width="75%">
  402. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  403. <td width="100%"></td>
  404. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  405. <table align=center width="75%"><tr><td>
  406. <h4><a name="FT_Vector">FT_Vector</a></h4>
  407. <table align=center width="87%"><tr><td>
  408. Defined in FT_IMAGE_H (freetype/ftimage.h).
  409. </td></tr></table><br>
  410. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  411. <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Vector_
  412. {
  413. <a href="ft2-basic_types.html#FT_Pos">FT_Pos</a> x;
  414. <a href="ft2-basic_types.html#FT_Pos">FT_Pos</a> y;
  415. } <b>FT_Vector</b>;
  416. </pre></table><br>
  417. <table align=center width="87%"><tr><td>
  418. <p>A simple structure used to store a 2D vector; coordinates are of the FT_Pos type.</p>
  419. </td></tr></table><br>
  420. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>fields</b></em></td></tr><tr><td>
  421. <p></p>
  422. <table cellpadding=3 border=0>
  423. <tr valign=top><td><b>x</b></td><td>
  424. <p>The horizontal coordinate.</p>
  425. </td></tr>
  426. <tr valign=top><td><b>y</b></td><td>
  427. <p>The vertical coordinate.</p>
  428. </td></tr>
  429. </table>
  430. </td></tr></table>
  431. </td></tr></table>
  432. <hr width="75%">
  433. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  434. <td width="100%"></td>
  435. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  436. <table align=center width="75%"><tr><td>
  437. <h4><a name="FT_BBox">FT_BBox</a></h4>
  438. <table align=center width="87%"><tr><td>
  439. Defined in FT_IMAGE_H (freetype/ftimage.h).
  440. </td></tr></table><br>
  441. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  442. <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_BBox_
  443. {
  444. <a href="ft2-basic_types.html#FT_Pos">FT_Pos</a> xMin, yMin;
  445. <a href="ft2-basic_types.html#FT_Pos">FT_Pos</a> xMax, yMax;
  446. } <b>FT_BBox</b>;
  447. </pre></table><br>
  448. <table align=center width="87%"><tr><td>
  449. <p>A structure used to hold an outline's bounding box, i.e., the coordinates of its extrema in the horizontal and vertical directions.</p>
  450. </td></tr></table><br>
  451. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>fields</b></em></td></tr><tr><td>
  452. <p></p>
  453. <table cellpadding=3 border=0>
  454. <tr valign=top><td><b>xMin</b></td><td>
  455. <p>The horizontal minimum (left-most).</p>
  456. </td></tr>
  457. <tr valign=top><td><b>yMin</b></td><td>
  458. <p>The vertical minimum (bottom-most).</p>
  459. </td></tr>
  460. <tr valign=top><td><b>xMax</b></td><td>
  461. <p>The horizontal maximum (right-most).</p>
  462. </td></tr>
  463. <tr valign=top><td><b>yMax</b></td><td>
  464. <p>The vertical maximum (top-most).</p>
  465. </td></tr>
  466. </table>
  467. </td></tr></table>
  468. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
  469. <p>The bounding box is specified with the coordinates of the lower left and the upper right corner. In PostScript, those values are often called (llx,lly) and (urx,ury), respectively.</p>
  470. <p>If &lsquo;yMin&rsquo; is negative, this value gives the glyph's descender. Otherwise, the glyph doesn't descend below the baseline. Similarly, if &lsquo;ymax&rsquo; is positive, this value gives the glyph's ascender.</p>
  471. <p>&lsquo;xMin&rsquo; gives the horizontal distance from the glyph's origin to the left edge of the glyph's bounding box. If &lsquo;xMin&rsquo; is negative, the glyph extends to the left of the origin.</p>
  472. </td></tr></table>
  473. </td></tr></table>
  474. <hr width="75%">
  475. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  476. <td width="100%"></td>
  477. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  478. <table align=center width="75%"><tr><td>
  479. <h4><a name="FT_Matrix">FT_Matrix</a></h4>
  480. <table align=center width="87%"><tr><td>
  481. Defined in FT_TYPES_H (freetype/fttypes.h).
  482. </td></tr></table><br>
  483. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  484. <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Matrix_
  485. {
  486. <a href="ft2-basic_types.html#FT_Fixed">FT_Fixed</a> xx, xy;
  487. <a href="ft2-basic_types.html#FT_Fixed">FT_Fixed</a> yx, yy;
  488. } <b>FT_Matrix</b>;
  489. </pre></table><br>
  490. <table align=center width="87%"><tr><td>
  491. <p>A simple structure used to store a 2x2 matrix. Coefficients are in 16.16 fixed float format. The computation performed is:</p>
  492. <pre class="colored">
  493. x' = x*xx + y*xy
  494. y' = x*yx + y*yy
  495. </pre>
  496. </td></tr></table><br>
  497. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>fields</b></em></td></tr><tr><td>
  498. <p></p>
  499. <table cellpadding=3 border=0>
  500. <tr valign=top><td><b>xx</b></td><td>
  501. <p>Matrix coefficient.</p>
  502. </td></tr>
  503. <tr valign=top><td><b>xy</b></td><td>
  504. <p>Matrix coefficient.</p>
  505. </td></tr>
  506. <tr valign=top><td><b>yx</b></td><td>
  507. <p>Matrix coefficient.</p>
  508. </td></tr>
  509. <tr valign=top><td><b>yy</b></td><td>
  510. <p>Matrix coefficient.</p>
  511. </td></tr>
  512. </table>
  513. </td></tr></table>
  514. </td></tr></table>
  515. <hr width="75%">
  516. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  517. <td width="100%"></td>
  518. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  519. <table align=center width="75%"><tr><td>
  520. <h4><a name="FT_FWord">FT_FWord</a></h4>
  521. <table align=center width="87%"><tr><td>
  522. Defined in FT_TYPES_H (freetype/fttypes.h).
  523. </td></tr></table><br>
  524. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  525. <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">short</span> <b>FT_FWord</b>; /* distance in FUnits */
  526. </pre></table><br>
  527. <table align=center width="87%"><tr><td>
  528. <p>A signed 16-bit integer used to store a distance in original font units.</p>
  529. </td></tr></table><br>
  530. </td></tr></table>
  531. <hr width="75%">
  532. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  533. <td width="100%"></td>
  534. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  535. <table align=center width="75%"><tr><td>
  536. <h4><a name="FT_UFWord">FT_UFWord</a></h4>
  537. <table align=center width="87%"><tr><td>
  538. Defined in FT_TYPES_H (freetype/fttypes.h).
  539. </td></tr></table><br>
  540. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  541. <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">short</span> <b>FT_UFWord</b>; /* <span class="keyword">unsigned</span> distance */
  542. </pre></table><br>
  543. <table align=center width="87%"><tr><td>
  544. <p>An unsigned 16-bit integer used to store a distance in original font units.</p>
  545. </td></tr></table><br>
  546. </td></tr></table>
  547. <hr width="75%">
  548. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  549. <td width="100%"></td>
  550. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  551. <table align=center width="75%"><tr><td>
  552. <h4><a name="FT_F2Dot14">FT_F2Dot14</a></h4>
  553. <table align=center width="87%"><tr><td>
  554. Defined in FT_TYPES_H (freetype/fttypes.h).
  555. </td></tr></table><br>
  556. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  557. <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">short</span> <b>FT_F2Dot14</b>;
  558. </pre></table><br>
  559. <table align=center width="87%"><tr><td>
  560. <p>A signed 2.14 fixed float type used for unit vectors.</p>
  561. </td></tr></table><br>
  562. </td></tr></table>
  563. <hr width="75%">
  564. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  565. <td width="100%"></td>
  566. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  567. <table align=center width="75%"><tr><td>
  568. <h4><a name="FT_UnitVector">FT_UnitVector</a></h4>
  569. <table align=center width="87%"><tr><td>
  570. Defined in FT_TYPES_H (freetype/fttypes.h).
  571. </td></tr></table><br>
  572. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  573. <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_UnitVector_
  574. {
  575. <a href="ft2-basic_types.html#FT_F2Dot14">FT_F2Dot14</a> x;
  576. <a href="ft2-basic_types.html#FT_F2Dot14">FT_F2Dot14</a> y;
  577. } <b>FT_UnitVector</b>;
  578. </pre></table><br>
  579. <table align=center width="87%"><tr><td>
  580. <p>A simple structure used to store a 2D vector unit vector. Uses FT_F2Dot14 types.</p>
  581. </td></tr></table><br>
  582. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>fields</b></em></td></tr><tr><td>
  583. <p></p>
  584. <table cellpadding=3 border=0>
  585. <tr valign=top><td><b>x</b></td><td>
  586. <p>Horizontal coordinate.</p>
  587. </td></tr>
  588. <tr valign=top><td><b>y</b></td><td>
  589. <p>Vertical coordinate.</p>
  590. </td></tr>
  591. </table>
  592. </td></tr></table>
  593. </td></tr></table>
  594. <hr width="75%">
  595. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  596. <td width="100%"></td>
  597. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  598. <table align=center width="75%"><tr><td>
  599. <h4><a name="FT_F26Dot6">FT_F26Dot6</a></h4>
  600. <table align=center width="87%"><tr><td>
  601. Defined in FT_TYPES_H (freetype/fttypes.h).
  602. </td></tr></table><br>
  603. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  604. <span class="keyword">typedef</span> <span class="keyword">signed</span> <span class="keyword">long</span> <b>FT_F26Dot6</b>;
  605. </pre></table><br>
  606. <table align=center width="87%"><tr><td>
  607. <p>A signed 26.6 fixed float type used for vectorial pixel coordinates.</p>
  608. </td></tr></table><br>
  609. </td></tr></table>
  610. <hr width="75%">
  611. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  612. <td width="100%"></td>
  613. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  614. <table align=center width="75%"><tr><td>
  615. <h4><a name="FT_Pixel_Mode">FT_Pixel_Mode</a></h4>
  616. <table align=center width="87%"><tr><td>
  617. Defined in FT_IMAGE_H (freetype/ftimage.h).
  618. </td></tr></table><br>
  619. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  620. <span class="keyword">typedef</span> <span class="keyword">enum</span> FT_Pixel_Mode_
  621. {
  622. <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_NONE</a> = 0,
  623. <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_MONO</a>,
  624. <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_GRAY</a>,
  625. <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_GRAY2</a>,
  626. <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_GRAY4</a>,
  627. <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_LCD</a>,
  628. <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_LCD_V</a>,
  629. FT_PIXEL_MODE_MAX /* do not remove */
  630. } <b>FT_Pixel_Mode</b>;
  631. </pre></table><br>
  632. <table align=center width="87%"><tr><td>
  633. <p>An enumeration type used to describe the format of pixels in a given bitmap. Note that additional formats may be added in the future.</p>
  634. </td></tr></table><br>
  635. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>values</b></em></td></tr><tr><td>
  636. <p></p>
  637. <table cellpadding=3 border=0>
  638. <tr valign=top><td><b>FT_PIXEL_MODE_NONE</b></td><td>
  639. <p>Value&nbsp;0 is reserved.</p>
  640. </td></tr>
  641. <tr valign=top><td><b>FT_PIXEL_MODE_MONO</b></td><td>
  642. <p>A monochrome bitmap, using 1&nbsp;bit per pixel. Note that pixels are stored in most-significant order (MSB), which means that the left-most pixel in a byte has value 128.</p>
  643. </td></tr>
  644. <tr valign=top><td><b>FT_PIXEL_MODE_GRAY</b></td><td>
  645. <p>An 8-bit bitmap, generally used to represent anti-aliased glyph images. Each pixel is stored in one byte. Note that the number of &lsquo;gray&rsquo; levels is stored in the &lsquo;num_grays&rsquo; field of the <a href="ft2-basic_types.html#FT_Bitmap">FT_Bitmap</a> structure (it generally is 256).</p>
  646. </td></tr>
  647. <tr valign=top><td><b>FT_PIXEL_MODE_GRAY2</b></td><td>
  648. <p>A 2-bit per pixel bitmap, used to represent embedded anti-aliased bitmaps in font files according to the OpenType specification. We haven't found a single font using this format, however.</p>
  649. </td></tr>
  650. <tr valign=top><td><b>FT_PIXEL_MODE_GRAY4</b></td><td>
  651. <p>A 4-bit per pixel bitmap, representing embedded anti-aliased bitmaps in font files according to the OpenType specification. We haven't found a single font using this format, however.</p>
  652. </td></tr>
  653. <tr valign=top><td><b>FT_PIXEL_MODE_LCD</b></td><td>
  654. <p>An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on LCD displays; the bitmap is three times wider than the original glyph image. See also <a href="ft2-base_interface.html#FT_Render_Mode">FT_RENDER_MODE_LCD</a>.</p>
  655. </td></tr>
  656. <tr valign=top><td><b>FT_PIXEL_MODE_LCD_V</b></td><td>
  657. <p>An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on rotated LCD displays; the bitmap is three times taller than the original glyph image. See also <a href="ft2-base_interface.html#FT_Render_Mode">FT_RENDER_MODE_LCD_V</a>.</p>
  658. </td></tr>
  659. </table>
  660. </td></tr></table>
  661. </td></tr></table>
  662. <hr width="75%">
  663. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  664. <td width="100%"></td>
  665. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  666. <table align=center width="75%"><tr><td>
  667. <h4><a name="ft_pixel_mode_xxx">ft_pixel_mode_xxx</a></h4>
  668. <table align=center width="87%"><tr><td>
  669. Defined in FT_IMAGE_H (freetype/ftimage.h).
  670. </td></tr></table><br>
  671. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  672. #define <a href="ft2-basic_types.html#ft_pixel_mode_xxx">ft_pixel_mode_none</a> <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_NONE</a>
  673. #define <a href="ft2-basic_types.html#ft_pixel_mode_xxx">ft_pixel_mode_mono</a> <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_MONO</a>
  674. #define <a href="ft2-basic_types.html#ft_pixel_mode_xxx">ft_pixel_mode_grays</a> <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_GRAY</a>
  675. #define <a href="ft2-basic_types.html#ft_pixel_mode_xxx">ft_pixel_mode_pal2</a> <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_GRAY2</a>
  676. #define <a href="ft2-basic_types.html#ft_pixel_mode_xxx">ft_pixel_mode_pal4</a> <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_GRAY4</a>
  677. </pre></table><br>
  678. <table align=center width="87%"><tr><td>
  679. <p>A list of deprecated constants. Use the corresponding <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_Pixel_Mode</a> values instead.</p>
  680. </td></tr></table><br>
  681. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>values</b></em></td></tr><tr><td>
  682. <p></p>
  683. <table cellpadding=3 border=0>
  684. <tr valign=top><td><b>ft_pixel_mode_none</b></td><td>
  685. <p>See <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_NONE</a>.</p>
  686. </td></tr>
  687. <tr valign=top><td><b>ft_pixel_mode_mono</b></td><td>
  688. <p>See <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_MONO</a>.</p>
  689. </td></tr>
  690. <tr valign=top><td><b>ft_pixel_mode_grays</b></td><td>
  691. <p>See <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_GRAY</a>.</p>
  692. </td></tr>
  693. <tr valign=top><td><b>ft_pixel_mode_pal2</b></td><td>
  694. <p>See <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_GRAY2</a>.</p>
  695. </td></tr>
  696. <tr valign=top><td><b>ft_pixel_mode_pal4</b></td><td>
  697. <p>See <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_GRAY4</a>.</p>
  698. </td></tr>
  699. </table>
  700. </td></tr></table>
  701. </td></tr></table>
  702. <hr width="75%">
  703. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  704. <td width="100%"></td>
  705. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  706. <table align=center width="75%"><tr><td>
  707. <h4><a name="FT_Palette_Mode">FT_Palette_Mode</a></h4>
  708. <table align=center width="87%"><tr><td>
  709. Defined in FT_IMAGE_H (freetype/ftimage.h).
  710. </td></tr></table><br>
  711. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  712. <span class="keyword">typedef</span> <span class="keyword">enum</span> FT_Palette_Mode_
  713. {
  714. <a href="ft2-basic_types.html#FT_Palette_Mode">ft_palette_mode_rgb</a> = 0,
  715. <a href="ft2-basic_types.html#FT_Palette_Mode">ft_palette_mode_rgba</a>,
  716. ft_palette_mode_max /* do not remove */
  717. } <b>FT_Palette_Mode</b>;
  718. </pre></table><br>
  719. <table align=center width="87%"><tr><td>
  720. <p>THIS TYPE IS DEPRECATED. DO NOT USE IT!</p>
  721. <p>An enumeration type to describe the format of a bitmap palette, used with ft_pixel_mode_pal4 and ft_pixel_mode_pal8.</p>
  722. </td></tr></table><br>
  723. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>values</b></em></td></tr><tr><td>
  724. <p></p>
  725. <table cellpadding=3 border=0>
  726. <tr valign=top><td><b>ft_palette_mode_rgb</b></td><td>
  727. <p>The palette is an array of 3-byte RGB records.</p>
  728. </td></tr>
  729. <tr valign=top><td><b>ft_palette_mode_rgba</b></td><td>
  730. <p>The palette is an array of 4-byte RGBA records.</p>
  731. </td></tr>
  732. </table>
  733. </td></tr></table>
  734. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
  735. <p>As ft_pixel_mode_pal2, pal4 and pal8 are currently unused by FreeType, these types are not handled by the library itself.</p>
  736. </td></tr></table>
  737. </td></tr></table>
  738. <hr width="75%">
  739. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  740. <td width="100%"></td>
  741. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  742. <table align=center width="75%"><tr><td>
  743. <h4><a name="FT_Bitmap">FT_Bitmap</a></h4>
  744. <table align=center width="87%"><tr><td>
  745. Defined in FT_IMAGE_H (freetype/ftimage.h).
  746. </td></tr></table><br>
  747. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  748. <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Bitmap_
  749. {
  750. <span class="keyword">int</span> rows;
  751. <span class="keyword">int</span> width;
  752. <span class="keyword">int</span> pitch;
  753. <span class="keyword">unsigned</span> <span class="keyword">char</span>* buffer;
  754. <span class="keyword">short</span> num_grays;
  755. <span class="keyword">char</span> pixel_mode;
  756. <span class="keyword">char</span> palette_mode;
  757. <span class="keyword">void</span>* palette;
  758. } <b>FT_Bitmap</b>;
  759. </pre></table><br>
  760. <table align=center width="87%"><tr><td>
  761. <p>A structure used to describe a bitmap or pixmap to the raster. Note that we now manage pixmaps of various depths through the &lsquo;pixel_mode&rsquo; field.</p>
  762. </td></tr></table><br>
  763. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>fields</b></em></td></tr><tr><td>
  764. <p></p>
  765. <table cellpadding=3 border=0>
  766. <tr valign=top><td><b>rows</b></td><td>
  767. <p>The number of bitmap rows.</p>
  768. </td></tr>
  769. <tr valign=top><td><b>width</b></td><td>
  770. <p>The number of pixels in bitmap row.</p>
  771. </td></tr>
  772. <tr valign=top><td><b>pitch</b></td><td>
  773. <p>The pitch's absolute value is the number of bytes taken by one bitmap row, including padding. However, the pitch is positive when the bitmap has a &lsquo;down&rsquo; flow, and negative when it has an &lsquo;up&rsquo; flow. In all cases, the pitch is an offset to add to a bitmap pointer in order to go down one row.</p>
  774. <p>Note that &lsquo;padding&rsquo; means the alignment of a bitmap to a byte border, and FreeType functions normally align to the smallest possible integer value.</p>
  775. <p>For the B/W rasterizer, &lsquo;pitch&rsquo; is always an even number.</p>
  776. <p>To change the pitch of a bitmap (say, to make it a multiple of 4), use <a href="ft2-bitmap_handling.html#FT_Bitmap_Convert">FT_Bitmap_Convert</a>. Alternatively, you might use callback functions to directly render to the application's surface; see the file &lsquo;example2.cpp&rsquo; in the tutorial for a demonstration.</p>
  777. </td></tr>
  778. <tr valign=top><td><b>buffer</b></td><td>
  779. <p>A typeless pointer to the bitmap buffer. This value should be aligned on 32-bit boundaries in most cases.</p>
  780. </td></tr>
  781. <tr valign=top><td><b>num_grays</b></td><td>
  782. <p>This field is only used with <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_PIXEL_MODE_GRAY</a>; it gives the number of gray levels used in the bitmap.</p>
  783. </td></tr>
  784. <tr valign=top><td><b>pixel_mode</b></td><td>
  785. <p>The pixel mode, i.e., how pixel bits are stored. See <a href="ft2-basic_types.html#FT_Pixel_Mode">FT_Pixel_Mode</a> for possible values.</p>
  786. </td></tr>
  787. <tr valign=top><td><b>palette_mode</b></td><td>
  788. <p>This field is intended for paletted pixel modes; it indicates how the palette is stored. Not used currently.</p>
  789. </td></tr>
  790. <tr valign=top><td><b>palette</b></td><td>
  791. <p>A typeless pointer to the bitmap palette; this field is intended for paletted pixel modes. Not used currently.</p>
  792. </td></tr>
  793. </table>
  794. </td></tr></table>
  795. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
  796. <p>For now, the only pixel modes supported by FreeType are mono and grays. However, drivers might be added in the future to support more &lsquo;colorful&rsquo; options.</p>
  797. </td></tr></table>
  798. </td></tr></table>
  799. <hr width="75%">
  800. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  801. <td width="100%"></td>
  802. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  803. <table align=center width="75%"><tr><td>
  804. <h4><a name="FT_IMAGE_TAG">FT_IMAGE_TAG</a></h4>
  805. <table align=center width="87%"><tr><td>
  806. Defined in FT_IMAGE_H (freetype/ftimage.h).
  807. </td></tr></table><br>
  808. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  809. #ifndef <b>FT_IMAGE_TAG</b>
  810. #define <b>FT_IMAGE_TAG</b>( value, _x1, _x2, _x3, _x4 ) \
  811. value = ( ( (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x1 &lt;&lt; 24 ) | \
  812. ( (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x2 &lt;&lt; 16 ) | \
  813. ( (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x3 &lt;&lt; 8 ) | \
  814. (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x4 )
  815. #endif /* <b>FT_IMAGE_TAG</b> */
  816. </pre></table><br>
  817. <table align=center width="87%"><tr><td>
  818. <p>This macro converts four-letter tags to an unsigned long type.</p>
  819. </td></tr></table><br>
  820. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
  821. <p>Since many 16-bit compilers don't like 32-bit enumerations, you should redefine this macro in case of problems to something like this:</p>
  822. <pre class="colored">
  823. #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value
  824. </pre>
  825. <p>to get a simple enumeration without assigning special numbers.</p>
  826. </td></tr></table>
  827. </td></tr></table>
  828. <hr width="75%">
  829. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  830. <td width="100%"></td>
  831. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  832. <table align=center width="75%"><tr><td>
  833. <h4><a name="FT_Glyph_Format">FT_Glyph_Format</a></h4>
  834. <table align=center width="87%"><tr><td>
  835. Defined in FT_IMAGE_H (freetype/ftimage.h).
  836. </td></tr></table><br>
  837. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  838. <span class="keyword">typedef</span> <span class="keyword">enum</span> FT_Glyph_Format_
  839. {
  840. <a href="ft2-basic_types.html#FT_IMAGE_TAG">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_NONE</a>, 0, 0, 0, 0 ),
  841. <a href="ft2-basic_types.html#FT_IMAGE_TAG">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_COMPOSITE</a>, 'c', 'o', 'm', 'p' ),
  842. <a href="ft2-basic_types.html#FT_IMAGE_TAG">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_BITMAP</a>, 'b', 'i', 't', 's' ),
  843. <a href="ft2-basic_types.html#FT_IMAGE_TAG">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_OUTLINE</a>, 'o', 'u', 't', 'l' ),
  844. <a href="ft2-basic_types.html#FT_IMAGE_TAG">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_PLOTTER</a>, 'p', 'l', 'o', 't' )
  845. } <b>FT_Glyph_Format</b>;
  846. </pre></table><br>
  847. <table align=center width="87%"><tr><td>
  848. <p>An enumeration type used to describe the format of a given glyph image. Note that this version of FreeType only supports two image formats, even though future font drivers will be able to register their own format.</p>
  849. </td></tr></table><br>
  850. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>values</b></em></td></tr><tr><td>
  851. <p></p>
  852. <table cellpadding=3 border=0>
  853. <tr valign=top><td><b>FT_GLYPH_FORMAT_NONE</b></td><td>
  854. <p>The value&nbsp;0 is reserved.</p>
  855. </td></tr>
  856. <tr valign=top><td colspan=0><b>FT_GLYPH_FORMAT_COMPOSITE</b></td></tr>
  857. <tr valign=top><td></td><td>
  858. <p>The glyph image is a composite of several other images. This format is <i>only</i> used with <a href="ft2-base_interface.html#FT_LOAD_XXX">FT_LOAD_NO_RECURSE</a>, and is used to report compound glyphs (like accented characters).</p>
  859. </td></tr>
  860. <tr valign=top><td><b>FT_GLYPH_FORMAT_BITMAP</b></td><td>
  861. <p>The glyph image is a bitmap, and can be described as an <a href="ft2-basic_types.html#FT_Bitmap">FT_Bitmap</a>. You generally need to access the &lsquo;bitmap&rsquo; field of the <a href="ft2-base_interface.html#FT_GlyphSlotRec">FT_GlyphSlotRec</a> structure to read it.</p>
  862. </td></tr>
  863. <tr valign=top><td colspan=0><b>FT_GLYPH_FORMAT_OUTLINE</b></td></tr>
  864. <tr valign=top><td></td><td>
  865. <p>The glyph image is a vectorial outline made of line segments and BÄ‚Å zier arcs; it can be described as an <a href="ft2-outline_processing.html#FT_Outline">FT_Outline</a>; you generally want to access the &lsquo;outline&rsquo; field of the <a href="ft2-base_interface.html#FT_GlyphSlotRec">FT_GlyphSlotRec</a> structure to read it.</p>
  866. </td></tr>
  867. <tr valign=top><td colspan=0><b>FT_GLYPH_FORMAT_PLOTTER</b></td></tr>
  868. <tr valign=top><td></td><td>
  869. <p>The glyph image is a vectorial path with no inside and outside contours. Some Type&nbsp;1 fonts, like those in the Hershey family, contain glyphs in this format. These are described as <a href="ft2-outline_processing.html#FT_Outline">FT_Outline</a>, but FreeType isn't currently capable of rendering them correctly.</p>
  870. </td></tr>
  871. </table>
  872. </td></tr></table>
  873. </td></tr></table>
  874. <hr width="75%">
  875. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  876. <td width="100%"></td>
  877. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  878. <table align=center width="75%"><tr><td>
  879. <h4><a name="ft_glyph_format_xxx">ft_glyph_format_xxx</a></h4>
  880. <table align=center width="87%"><tr><td>
  881. Defined in FT_IMAGE_H (freetype/ftimage.h).
  882. </td></tr></table><br>
  883. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  884. #define <a href="ft2-basic_types.html#ft_glyph_format_xxx">ft_glyph_format_none</a> <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_NONE</a>
  885. #define <a href="ft2-basic_types.html#ft_glyph_format_xxx">ft_glyph_format_composite</a> <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_COMPOSITE</a>
  886. #define <a href="ft2-basic_types.html#ft_glyph_format_xxx">ft_glyph_format_bitmap</a> <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_BITMAP</a>
  887. #define <a href="ft2-basic_types.html#ft_glyph_format_xxx">ft_glyph_format_outline</a> <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_OUTLINE</a>
  888. #define <a href="ft2-basic_types.html#ft_glyph_format_xxx">ft_glyph_format_plotter</a> <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_PLOTTER</a>
  889. </pre></table><br>
  890. <table align=center width="87%"><tr><td>
  891. <p>A list of deprecated constants. Use the corresponding <a href="ft2-basic_types.html#FT_Glyph_Format">FT_Glyph_Format</a> values instead.</p>
  892. </td></tr></table><br>
  893. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>values</b></em></td></tr><tr><td>
  894. <p></p>
  895. <table cellpadding=3 border=0>
  896. <tr valign=top><td><b>ft_glyph_format_none</b></td><td>
  897. <p>See <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_NONE</a>.</p>
  898. </td></tr>
  899. <tr valign=top><td colspan=0><b>ft_glyph_format_composite</b></td></tr>
  900. <tr valign=top><td></td><td>
  901. <p>See <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_COMPOSITE</a>.</p>
  902. </td></tr>
  903. <tr valign=top><td><b>ft_glyph_format_bitmap</b></td><td>
  904. <p>See <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_BITMAP</a>.</p>
  905. </td></tr>
  906. <tr valign=top><td colspan=0><b>ft_glyph_format_outline</b></td></tr>
  907. <tr valign=top><td></td><td>
  908. <p>See <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_OUTLINE</a>.</p>
  909. </td></tr>
  910. <tr valign=top><td colspan=0><b>ft_glyph_format_plotter</b></td></tr>
  911. <tr valign=top><td></td><td>
  912. <p>See <a href="ft2-basic_types.html#FT_Glyph_Format">FT_GLYPH_FORMAT_PLOTTER</a>.</p>
  913. </td></tr>
  914. </table>
  915. </td></tr></table>
  916. </td></tr></table>
  917. <hr width="75%">
  918. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  919. <td width="100%"></td>
  920. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  921. <table align=center width="75%"><tr><td>
  922. <h4><a name="FT_Data">FT_Data</a></h4>
  923. <table align=center width="87%"><tr><td>
  924. Defined in FT_TYPES_H (freetype/fttypes.h).
  925. </td></tr></table><br>
  926. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  927. <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Data_
  928. {
  929. <span class="keyword">const</span> <a href="ft2-basic_types.html#FT_Byte">FT_Byte</a>* pointer;
  930. <a href="ft2-basic_types.html#FT_Int">FT_Int</a> length;
  931. } <b>FT_Data</b>;
  932. </pre></table><br>
  933. <table align=center width="87%"><tr><td>
  934. <p>Read-only binary data represented as a pointer and a length.</p>
  935. </td></tr></table><br>
  936. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>fields</b></em></td></tr><tr><td>
  937. <p></p>
  938. <table cellpadding=3 border=0>
  939. <tr valign=top><td><b>pointer</b></td><td>
  940. <p>The data.</p>
  941. </td></tr>
  942. <tr valign=top><td><b>length</b></td><td>
  943. <p>The length of the data in bytes.</p>
  944. </td></tr>
  945. </table>
  946. </td></tr></table>
  947. </td></tr></table>
  948. <hr width="75%">
  949. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  950. <td width="100%"></td>
  951. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  952. <table align=center width="75%"><tr><td>
  953. <h4><a name="FT_Generic_Finalizer">FT_Generic_Finalizer</a></h4>
  954. <table align=center width="87%"><tr><td>
  955. Defined in FT_TYPES_H (freetype/fttypes.h).
  956. </td></tr></table><br>
  957. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  958. <span class="keyword">typedef</span> <span class="keyword">void</span> (*<b>FT_Generic_Finalizer</b>)(<span class="keyword">void</span>* object);
  959. </pre></table><br>
  960. <table align=center width="87%"><tr><td>
  961. <p>Describe a function used to destroy the &lsquo;client&rsquo; data of any FreeType object. See the description of the <a href="ft2-basic_types.html#FT_Generic">FT_Generic</a> type for details of usage.</p>
  962. </td></tr></table><br>
  963. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
  964. <p>The address of the FreeType object which is under finalization. Its client data is accessed through its &lsquo;generic&rsquo; field.</p>
  965. </td></tr></table>
  966. </td></tr></table>
  967. <hr width="75%">
  968. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  969. <td width="100%"></td>
  970. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  971. <table align=center width="75%"><tr><td>
  972. <h4><a name="FT_Generic">FT_Generic</a></h4>
  973. <table align=center width="87%"><tr><td>
  974. Defined in FT_TYPES_H (freetype/fttypes.h).
  975. </td></tr></table><br>
  976. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  977. <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Generic_
  978. {
  979. <span class="keyword">void</span>* data;
  980. <a href="ft2-basic_types.html#FT_Generic_Finalizer">FT_Generic_Finalizer</a> finalizer;
  981. } <b>FT_Generic</b>;
  982. </pre></table><br>
  983. <table align=center width="87%"><tr><td>
  984. <p>Client applications often need to associate their own data to a variety of FreeType core objects. For example, a text layout API might want to associate a glyph cache to a given size object.</p>
  985. <p>Most FreeType object contains a &lsquo;generic&rsquo; field, of type FT_Generic, which usage is left to client applications and font servers.</p>
  986. <p>It can be used to store a pointer to client-specific data, as well as the address of a &lsquo;finalizer&rsquo; function, which will be called by FreeType when the object is destroyed (for example, the previous client example would put the address of the glyph cache destructor in the &lsquo;finalizer&rsquo; field).</p>
  987. </td></tr></table><br>
  988. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>fields</b></em></td></tr><tr><td>
  989. <p></p>
  990. <table cellpadding=3 border=0>
  991. <tr valign=top><td><b>data</b></td><td>
  992. <p>A typeless pointer to any client-specified data. This field is completely ignored by the FreeType library.</p>
  993. </td></tr>
  994. <tr valign=top><td><b>finalizer</b></td><td>
  995. <p>A pointer to a &lsquo;generic finalizer&rsquo; function, which will be called when the object is destroyed. If this field is set to NULL, no code will be called.</p>
  996. </td></tr>
  997. </table>
  998. </td></tr></table>
  999. </td></tr></table>
  1000. <hr width="75%">
  1001. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  1002. <td width="100%"></td>
  1003. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  1004. <table align=center width="75%"><tr><td>
  1005. <h4><a name="FT_MAKE_TAG">FT_MAKE_TAG</a></h4>
  1006. <table align=center width="87%"><tr><td>
  1007. Defined in FT_TYPES_H (freetype/fttypes.h).
  1008. </td></tr></table><br>
  1009. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  1010. #define <b>FT_MAKE_TAG</b>( _x1, _x2, _x3, _x4 ) \
  1011. (<a href="ft2-basic_types.html#FT_Tag">FT_Tag</a>) \
  1012. ( ( (<a href="ft2-basic_types.html#FT_ULong">FT_ULong</a>)_x1 &lt;&lt; 24 ) | \
  1013. ( (<a href="ft2-basic_types.html#FT_ULong">FT_ULong</a>)_x2 &lt;&lt; 16 ) | \
  1014. ( (<a href="ft2-basic_types.html#FT_ULong">FT_ULong</a>)_x3 &lt;&lt; 8 ) | \
  1015. (<a href="ft2-basic_types.html#FT_ULong">FT_ULong</a>)_x4 )
  1016. </pre></table><br>
  1017. <table align=center width="87%"><tr><td>
  1018. <p>This macro converts four-letter tags which are used to label TrueType tables into an unsigned long to be used within FreeType.</p>
  1019. </td></tr></table><br>
  1020. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
  1021. <p>The produced values <b>must</b> be 32-bit integers. Don't redefine this macro.</p>
  1022. </td></tr></table>
  1023. </td></tr></table>
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  1028. </body>
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