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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Engines: Pango Reference Manual</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="index.html" title="Pango Reference Manual"> <link rel="up" href="deprecated.html" title="Deprecated APIs"> <link rel="prev" href="pango-OpenType-Font-Handling.html" title="OpenType Font Handling"> <link rel="next" href="PangoEngineLang.html" title="PangoEngineLang"> <meta name="generator" content="GTK-Doc V1.32 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> <td width="100%" align="left" class="shortcuts"> <a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> <a href="#pango-Engines.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> <a href="#pango-Engines.object-hierarchy" class="shortcut">Object Hierarchy</a></span> </td> <td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> <td><a accesskey="u" href="deprecated.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> <td><a accesskey="p" href="pango-OpenType-Font-Handling.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> <td><a accesskey="n" href="PangoEngineLang.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> </tr></table> <div class="refentry"> <a name="pango-Engines"></a><div class="titlepage"></div> <div class="refnamediv"><table width="100%"><tr> <td valign="top"> <h2><span class="refentrytitle"><a name="pango-Engines.top_of_page"></a>Engines</span></h2> <p>Engines — Language-specific and rendering-system-specific processing</p> </td> <td class="gallery_image" valign="top" align="right"></td> </tr></table></div> <div class="refsect1"> <a name="pango-Engines.functions"></a><h2>Functions</h2> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="functions_proto_type"> <col class="functions_proto_name"> </colgroup> <tbody> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="pango-Engines.html#script-engine-list" title="script_engine_list ()">script_engine_list</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="pango-Engines.html#script-engine-init" title="script_engine_init ()">script_engine_init</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <span class="returnvalue">void</span> </td> <td class="function_name"> <a class="link" href="pango-Engines.html#script-engine-exit" title="script_engine_exit ()">script_engine_exit</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="pango-Engines.html#PangoEngine"><span class="returnvalue">PangoEngine</span></a> * </td> <td class="function_name"> <a class="link" href="pango-Engines.html#script-engine-create" title="script_engine_create ()">script_engine_create</a> <span class="c_punctuation">()</span> </td> </tr> </tbody> </table></div> </div> <a name="PangoEngine"></a><div class="refsect1"> <a name="pango-Engines.other"></a><h2>Types and Values</h2> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="other_proto_type"> <col class="other_proto_name"> </colgroup> <tbody> <tr> <td class="datatype_keyword">struct</td> <td class="function_name"><a class="link" href="pango-Engines.html#PangoEngineInfo" title="struct PangoEngineInfo">PangoEngineInfo</a></td> </tr> <tr> <td class="datatype_keyword">struct</td> <td class="function_name"><a class="link" href="pango-Engines.html#PangoEngineScriptInfo" title="struct PangoEngineScriptInfo">PangoEngineScriptInfo</a></td> </tr> <tr> <td class="datatype_keyword">struct</td> <td class="function_name"><a class="link" href="pango-Engines.html#PangoEngine-struct" title="struct PangoEngine">PangoEngine</a></td> </tr> <tr> <td class="datatype_keyword">struct</td> <td class="function_name"><a class="link" href="pango-Engines.html#PangoEngineClass" title="struct PangoEngineClass">PangoEngineClass</a></td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="pango-Engines.object-hierarchy"></a><h2>Object Hierarchy</h2> <pre class="screen"> <a href="../gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a> <span class="lineart">╰──</span> PangoEngine <span class="lineart">├──</span> <a class="link" href="PangoEngineLang.html" title="PangoEngineLang">PangoEngineLang</a> <span class="lineart">╰──</span> <a class="link" href="PangoEngineShape.html" title="PangoEngineShape">PangoEngineShape</a> </pre> </div> <div class="refsect1"> <a name="pango-Engines.description"></a><h2>Description</h2> <p>Pango used to have a module architecture in which the language-specific and render-system-specific components are provided by loadable modules.</p> <p>This is no longer the case, and all the APIs related to modules and engines should not be used anymore.</p> </div> <div class="refsect1"> <a name="pango-Engines.functions_details"></a><h2>Functions</h2> <div class="refsect2"> <a name="script-engine-list"></a><h3>script_engine_list ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> script_engine_list (<em class="parameter"><code><a class="link" href="pango-Engines.html#PangoEngineInfo" title="struct PangoEngineInfo"><span class="type">PangoEngineInfo</span></a> **engines</code></em>, <em class="parameter"><code><span class="type">int</span> *n_engines</code></em>);</pre> <div class="warning"><p><code class="literal">script_engine_list</code> has been deprecated since version 1.38 and should not be used in newly-written code.</p></div> <p>Do not use.</p> <p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p> <div class="refsect3"> <a name="script-engine-list.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody> <tr> <td class="parameter_name"><p>engines</p></td> <td class="parameter_description"><p>location to store a pointer to an array of engines.</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>n_engines</p></td> <td class="parameter_description"><p>location to store the number of elements in <em class="parameter"><code>engines</code></em> .</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="script-engine-init"></a><h3>script_engine_init ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> script_engine_init (<em class="parameter"><code><a href="../gobject/GTypeModule.html#GTypeModule-struct"><span class="type">GTypeModule</span></a> *module</code></em>);</pre> <div class="warning"><p><code class="literal">script_engine_init</code> has been deprecated since version 1.38 and should not be used in newly-written code.</p></div> <p>Do not use.</p> <p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p> <div class="refsect3"> <a name="script-engine-init.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>module</p></td> <td class="parameter_description"><p>a <a href="../gobject/GTypeModule.html#GTypeModule-struct"><span class="type">GTypeModule</span></a> structure used to associate any GObject types created in this module with the module.</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="script-engine-exit"></a><h3>script_engine_exit ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> script_engine_exit (<em class="parameter"><code><span class="type">void</span></code></em>);</pre> <div class="warning"><p><code class="literal">script_engine_exit</code> has been deprecated since version 1.38 and should not be used in newly-written code.</p></div> <p>Do not use.</p> <p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p> </div> <hr> <div class="refsect2"> <a name="script-engine-create"></a><h3>script_engine_create ()</h3> <pre class="programlisting"><a class="link" href="pango-Engines.html#PangoEngine"><span class="returnvalue">PangoEngine</span></a> * script_engine_create (<em class="parameter"><code>const <span class="type">char</span> *id</code></em>);</pre> <div class="warning"><p><code class="literal">script_engine_create</code> has been deprecated since version 1.38 and should not be used in newly-written code.</p></div> <p>Do not use.</p> <p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p> <div class="refsect3"> <a name="script-engine-create.parameters"></a><h4>Parameters</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="150px" class="parameters_name"> <col class="parameters_description"> <col width="200px" class="parameters_annotations"> </colgroup> <tbody><tr> <td class="parameter_name"><p>id</p></td> <td class="parameter_description"><p>the ID of an engine as reported by script_engine_list.</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> </div> </div> <div class="refsect1"> <a name="pango-Engines.other_details"></a><h2>Types and Values</h2> <div class="refsect2"> <a name="PangoEngineInfo"></a><h3>struct PangoEngineInfo</h3> <pre class="programlisting">struct PangoEngineInfo { const gchar *id; const gchar *engine_type; const gchar *render_type; PangoEngineScriptInfo *scripts; gint n_scripts; }; </pre> <div class="warning"><p><code class="literal">PangoEngineInfo</code> has been deprecated since version 1.38 and should not be used in newly-written code.</p></div> <p>The <a class="link" href="pango-Engines.html#PangoEngineInfo" title="struct PangoEngineInfo"><span class="type">PangoEngineInfo</span></a> structure contains information about a particular engine. It contains the following fields:</p> <div class="refsect3"> <a name="PangoEngineInfo.members"></a><h4>Members</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="300px" class="struct_members_name"> <col class="struct_members_description"> <col width="200px" class="struct_members_annotations"> </colgroup> <tbody> <tr> <td class="struct_member_name"><p>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="PangoEngineInfo.id"></a>id</code></em>;</p></td> <td class="struct_member_description"><p>a unique string ID for the engine.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="PangoEngineInfo.engine-type"></a>engine_type</code></em>;</p></td> <td class="struct_member_description"><p>a string identifying the engine type.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="PangoEngineInfo.render-type"></a>render_type</code></em>;</p></td> <td class="struct_member_description"><p>a string identifying the render type.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a class="link" href="pango-Engines.html#PangoEngineScriptInfo" title="struct PangoEngineScriptInfo"><span class="type">PangoEngineScriptInfo</span></a> *<em class="structfield"><code><a name="PangoEngineInfo.scripts"></a>scripts</code></em>;</p></td> <td class="struct_member_description"><p>array of scripts this engine supports.</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p><a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="PangoEngineInfo.n-scripts"></a>n_scripts</code></em>;</p></td> <td class="struct_member_description"><p>number of items in <em class="parameter"><code>scripts</code></em> .</p></td> <td class="struct_member_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="PangoEngineScriptInfo"></a><h3>struct PangoEngineScriptInfo</h3> <pre class="programlisting">struct PangoEngineScriptInfo { PangoScript script; const gchar *langs; }; </pre> <div class="warning"><p><code class="literal">PangoEngineScriptInfo</code> has been deprecated since version 1.38 and should not be used in newly-written code.</p></div> <p>The <a class="link" href="pango-Engines.html#PangoEngineScriptInfo" title="struct PangoEngineScriptInfo"><span class="type">PangoEngineScriptInfo</span></a> structure contains information about how the shaper covers a particular script.</p> <div class="refsect3"> <a name="PangoEngineScriptInfo.members"></a><h4>Members</h4> <div class="informaltable"><table class="informaltable" width="100%" border="0"> <colgroup> <col width="300px" class="struct_members_name"> <col class="struct_members_description"> <col width="200px" class="struct_members_annotations"> </colgroup> <tbody> <tr> <td class="struct_member_name"><p><a class="link" href="pango-Scripts-and-Languages.html#PangoScript" title="enum PangoScript"><span class="type">PangoScript</span></a> <em class="structfield"><code><a name="PangoEngineScriptInfo.script"></a>script</code></em>;</p></td> <td class="struct_member_description"><p>a <a class="link" href="pango-Scripts-and-Languages.html#PangoScript" title="enum PangoScript"><span class="type">PangoScript</span></a>. The value <a class="link" href="pango-Scripts-and-Languages.html#PANGO-SCRIPT-COMMON:CAPS"><code class="literal">PANGO_SCRIPT_COMMON</code></a> has the special meaning here of "all scripts"</p></td> <td class="struct_member_annotations"> </td> </tr> <tr> <td class="struct_member_name"><p>const <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="PangoEngineScriptInfo.langs"></a>langs</code></em>;</p></td> <td class="struct_member_description"><p>a semicolon separated list of languages that this engine handles for this script. This may be empty, in which case the engine is saying that it is a fallback choice for all languages for this range, but should not be used if another engine indicates that it is specific for the language for a given code point. An entry in this list of "*" indicates that this engine is specific to all languages for this range.</p></td> <td class="struct_member_annotations"> </td> </tr> </tbody> </table></div> </div> </div> <hr> <div class="refsect2"> <a name="PangoEngine-struct"></a><h3>struct PangoEngine</h3> <pre class="programlisting">struct PangoEngine;</pre> <div class="warning"><p><code class="literal">PangoEngine</code> has been deprecated since version 1.38 and should not be used in newly-written code.</p></div> <p><a class="link" href="pango-Engines.html#PangoEngine"><span class="type">PangoEngine</span></a> is the base class for all types of language and script specific engines. It has no functionality by itself.</p> </div> <hr> <div class="refsect2"> <a name="PangoEngineClass"></a><h3>struct PangoEngineClass</h3> <pre class="programlisting">struct PangoEngineClass { }; </pre> <div class="warning"><p><code class="literal">PangoEngineClass</code> has been deprecated since version 1.38 and should not be used in newly-written code.</p></div> <p>Class structure for <a class="link" href="pango-Engines.html#PangoEngine"><span class="type">PangoEngine</span></a></p> </div> </div> </div> <div class="footer"> <hr>Generated by GTK-Doc V1.32</div> </body> </html>