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1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 2"http://www.w3.org/TR/html4/loose.dtd"> 3<html> 4<head> 5<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 6<title>FreeType-2.4.3 API Reference</title> 7<style type="text/css"> 8 body { font-family: Verdana, Geneva, Arial, Helvetica, serif; 9 color: #000000; 10 background: #FFFFFF; } 11 12 p { text-align: justify; } 13 h1 { text-align: center; } 14 li { text-align: justify; } 15 td { padding: 0 0.5em 0 0.5em; } 16 td.left { padding: 0 0.5em 0 0.5em; 17 text-align: left; } 18 19 a:link { color: #0000EF; } 20 a:visited { color: #51188E; } 21 a:hover { color: #FF0000; } 22 23 span.keyword { font-family: monospace; 24 text-align: left; 25 white-space: pre; 26 color: darkblue; } 27 28 pre.colored { color: blue; } 29 30 ul.empty { list-style-type: none; } 31</style> 32</head> 33<body> 34 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-2.4.3 API Reference</h1></center> 39 40<center><h1> 41The 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> 54Defined 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> 100Defined 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> 126<hr width="75%"> 127<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td> 128<td width="100%"></td> 129<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table> 130 131</body> 132</html>