/modules/freetype2/docs/reference/ft2-truetype_engine.html

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  37. <td><font size=-1>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
    38. 

  38. <center><h1>FreeType-2.4.3 API Reference</h1></center>
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  39. 

  40. <center><h1>
    41. 

  41. The TrueType Engine
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  42. </h1></center>
    43. 

  43. <h2>Synopsis</h2>
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  44. <table align=center cellspacing=5 cellpadding=0 border=0>
    45. 

  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>
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  46. </table><br><br>
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  47. 

  48. <table align=center width="87%"><tr><td>
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  49. <p>This section contains a function used to query the level of TrueType bytecode support compiled in this version of the library.</p>
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  50. </td></tr></table><br>
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  51. <table align=center width="75%"><tr><td>
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  52. <h4><a name="FT_TrueTypeEngineType">FT_TrueTypeEngineType</a></h4>
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  53. <table align=center width="87%"><tr><td>
    54. 

  54. Defined in FT_MODULE_H (freetype/ftmodapi.h).
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  55. </td></tr></table><br>
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  56. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
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  57. 

  58.   <span class="keyword">typedef</span> <span class="keyword">enum</span>  FT_TrueTypeEngineType_
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  59.   {
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  60.     <a href="ft2-truetype_engine.html#FT_TrueTypeEngineType">FT_TRUETYPE_ENGINE_TYPE_NONE</a> = 0,
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  61.     <a href="ft2-truetype_engine.html#FT_TrueTypeEngineType">FT_TRUETYPE_ENGINE_TYPE_UNPATENTED</a>,
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  62.     <a href="ft2-truetype_engine.html#FT_TrueTypeEngineType">FT_TRUETYPE_ENGINE_TYPE_PATENTED</a>
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  63. 

  64.   } <b>FT_TrueTypeEngineType</b>;
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  65. 

  66. </pre></table><br>
    67. 

  67. <table align=center width="87%"><tr><td>
    68. 

  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>
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  69. </td></tr></table><br>
    70. 

  70. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>values</b></em></td></tr><tr><td>
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  71. <p></p>
    72. 

  72. <table cellpadding=3 border=0>
    73. 

  73. <tr valign=top><td colspan=0><b>FT_TRUETYPE_ENGINE_TYPE_NONE</b></td></tr>
    74. 

  74. <tr valign=top><td></td><td>
    75. 

  75. <p>The library doesn't implement any kind of bytecode interpreter.</p>
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  76. </td></tr>
    77. 

  77. <tr valign=top><td colspan=0><b>FT_TRUETYPE_ENGINE_TYPE_UNPATENTED</b></td></tr>
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  78. <tr valign=top><td></td><td>
    79. 

  79. <p>The library implements a bytecode interpreter that doesn't support the patented operations of the TrueType virtual machine.</p>
    80. 

  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>
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  81. </td></tr>
    82. 

  82. <tr valign=top><td colspan=0><b>FT_TRUETYPE_ENGINE_TYPE_PATENTED</b></td></tr>
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  83. <tr valign=top><td></td><td>
    84. 

  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>
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  85. </td></tr>
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  86. </table>
    87. 

  87. </td></tr></table>
    88. 

  88. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>since</b></em></td></tr><tr><td>
    89. 

  89. <p>2.2</p>
    90. 

  90. </td></tr></table>
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  91. </td></tr></table>
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  93. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
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  95. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
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  96. 

  97. <table align=center width="75%"><tr><td>
    98. 

  98. <h4><a name="FT_Get_TrueType_Engine_Type">FT_Get_TrueType_Engine_Type</a></h4>
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  99. <table align=center width="87%"><tr><td>
    100. 

  100. Defined in FT_MODULE_H (freetype/ftmodapi.h).
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  101. </td></tr></table><br>
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  102. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
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  103. 

  104.   FT_EXPORT( <a href="ft2-truetype_engine.html#FT_TrueTypeEngineType">FT_TrueTypeEngineType</a> )
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  105.   <b>FT_Get_TrueType_Engine_Type</b>( <a href="ft2-base_interface.html#FT_Library">FT_Library</a>  library );
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  106. 

  107. </pre></table><br>
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  108. <table align=center width="87%"><tr><td>
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  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>
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  110. </td></tr></table><br>
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  111. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
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  112. <p></p>
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  113. <table cellpadding=3 border=0>
    114. 

  114. <tr valign=top><td><b>library</b></td><td>
    115. 

  115. <p>A library instance.</p>
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  116. </td></tr>
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  117. </table>
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  118. </td></tr></table>
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  119. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
    120. 

  120. <p>A value indicating which level is supported.</p>
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  121. </td></tr></table>
    122. 

  122. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>since</b></em></td></tr><tr><td>
    123. 

  123. <p>2.2</p>
    124. 

  124. </td></tr></table>
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  125. </td></tr></table>
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