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  6. <title>FreeType-2.5.0 API Reference</title>
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  35. <table align=center><tr><td><font size=-1>[<a href="ft2-index.html">Index</a>]</font></td>
  36. <td width="100%"></td>
  37. <td><font size=-1>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  38. <center><h1>FreeType-2.5.0 API Reference</h1></center>
  39.  
  40. <center><h1>
  41. The TrueType Engine
  42. </h1></center>
  43. <h2>Synopsis</h2>
  44. <table align=center cellspacing=5 cellpadding=0 border=0>
  45. <tr><td></td><td><a href="#FT_TrueTypeEngineType">FT_TrueTypeEngineType</a></td><td></td><td><a href="#FT_Get_TrueType_Engine_Type">FT_Get_TrueType_Engine_Type</a></td></tr>
  46. </table><br><br>
  47.  
  48. <table align=center width="87%"><tr><td>
  49. <p>This section contains a function used to query the level of TrueType bytecode support compiled in this version of the library.</p>
  50. </td></tr></table><br>
  51. <table align=center width="75%"><tr><td>
  52. <h4><a name="FT_TrueTypeEngineType">FT_TrueTypeEngineType</a></h4>
  53. <table align=center width="87%"><tr><td>
  54. Defined in FT_MODULE_H (freetype/ftmodapi.h).
  55. </td></tr></table><br>
  56. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  57.  
  58.   <span class="keyword">typedef</span> <span class="keyword">enum</span>  FT_TrueTypeEngineType_
  59.   {
  60.     <a href="ft2-truetype_engine.html#FT_TrueTypeEngineType">FT_TRUETYPE_ENGINE_TYPE_NONE</a> = 0,
  61.     <a href="ft2-truetype_engine.html#FT_TrueTypeEngineType">FT_TRUETYPE_ENGINE_TYPE_UNPATENTED</a>,
  62.     <a href="ft2-truetype_engine.html#FT_TrueTypeEngineType">FT_TRUETYPE_ENGINE_TYPE_PATENTED</a>
  63.  
  64.   } <b>FT_TrueTypeEngineType</b>;
  65.  
  66. </pre></table><br>
  67. <table align=center width="87%"><tr><td>
  68. <p>A list of values describing which kind of TrueType bytecode engine is implemented in a given FT_Library instance. It is used by the <a href="ft2-truetype_engine.html#FT_Get_TrueType_Engine_Type">FT_Get_TrueType_Engine_Type</a> function.</p>
  69. </td></tr></table><br>
  70. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>values</b></em></td></tr><tr><td>
  71. <p></p>
  72. <table cellpadding=3 border=0>
  73. <tr valign=top><td colspan=0><b>FT_TRUETYPE_ENGINE_TYPE_NONE</b></td></tr>
  74. <tr valign=top><td></td><td>
  75. <p>The library doesn't implement any kind of bytecode interpreter.</p>
  76. </td></tr>
  77. <tr valign=top><td colspan=0><b>FT_TRUETYPE_ENGINE_TYPE_UNPATENTED</b></td></tr>
  78. <tr valign=top><td></td><td>
  79. <p>The library implements a bytecode interpreter that doesn't support the patented operations of the TrueType virtual machine.</p>
  80. <p>Its main use is to load certain Asian fonts which position and scale glyph components with bytecode instructions. It produces bad output for most other fonts.</p>
  81. </td></tr>
  82. <tr valign=top><td colspan=0><b>FT_TRUETYPE_ENGINE_TYPE_PATENTED</b></td></tr>
  83. <tr valign=top><td></td><td>
  84. <p>The library implements a bytecode interpreter that covers the full instruction set of the TrueType virtual machine (this was governed by patents until May 2010, hence the name).</p>
  85. </td></tr>
  86. </table>
  87. </td></tr></table>
  88. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>since</b></em></td></tr><tr><td>
  89. <p>2.2</p>
  90. </td></tr></table>
  91. </td></tr></table>
  92. <hr width="75%">
  93. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  94. <td width="100%"></td>
  95. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  96.  
  97. <table align=center width="75%"><tr><td>
  98. <h4><a name="FT_Get_TrueType_Engine_Type">FT_Get_TrueType_Engine_Type</a></h4>
  99. <table align=center width="87%"><tr><td>
  100. Defined in FT_MODULE_H (freetype/ftmodapi.h).
  101. </td></tr></table><br>
  102. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  103.  
  104.   FT_EXPORT( <a href="ft2-truetype_engine.html#FT_TrueTypeEngineType">FT_TrueTypeEngineType</a> )
  105.   <b>FT_Get_TrueType_Engine_Type</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a>  library );
  106.  
  107. </pre></table><br>
  108. <table align=center width="87%"><tr><td>
  109. <p>Return an <a href="ft2-truetype_engine.html#FT_TrueTypeEngineType">FT_TrueTypeEngineType</a> value to indicate which level of the TrueType virtual machine a given library instance supports.</p>
  110. </td></tr></table><br>
  111. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
  112. <p></p>
  113. <table cellpadding=3 border=0>
  114. <tr valign=top><td><b>library</b></td><td>
  115. <p>A library instance.</p>
  116. </td></tr>
  117. </table>
  118. </td></tr></table>
  119. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
  120. <p>A value indicating which level is supported.</p>
  121. </td></tr></table>
  122. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>since</b></em></td></tr><tr><td>
  123. <p>2.2</p>
  124. </td></tr></table>
  125. </td></tr></table>
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