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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>hb-map: HarfBuzz Manual</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="index.html" title="HarfBuzz Manual"> <link rel="up" href="ch12.html" title="Core API"> <link rel="prev" href="harfbuzz-hb-font.html" title="hb-font"> <link rel="next" href="harfbuzz-hb-set.html" title="hb-set"> <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="#harfbuzz-hb-map.description" class="shortcut">Description</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="ch12.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> <td><a accesskey="p" href="harfbuzz-hb-font.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> <td><a accesskey="n" href="harfbuzz-hb-set.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> </tr></table> <div class="refentry"> <a name="harfbuzz-hb-map"></a><div class="titlepage"></div> <div class="refnamediv"><table width="100%"><tr> <td valign="top"> <h2><span class="refentrytitle"><a name="harfbuzz-hb-map.top_of_page"></a>hb-map</span></h2> <p>hb-map — Object representing integer to integer mapping</p> </td> <td class="gallery_image" valign="top" align="right"></td> </tr></table></div> <div class="refsect1"> <a name="harfbuzz-hb-map.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"> <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a> </td> <td class="function_name"> <a class="link" href="harfbuzz-hb-map.html#hb-map-allocation-successful" title="hb_map_allocation_successful ()">hb_map_allocation_successful</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="harfbuzz-hb-map.html#hb-map-clear" title="hb_map_clear ()">hb_map_clear</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> * </td> <td class="function_name"> <a class="link" href="harfbuzz-hb-map.html#hb-map-create" title="hb_map_create ()">hb_map_create</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="harfbuzz-hb-map.html#hb-map-del" title="hb_map_del ()">hb_map_del</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="harfbuzz-hb-map.html#hb-map-destroy" title="hb_map_destroy ()">hb_map_destroy</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="returnvalue">hb_codepoint_t</span></a> </td> <td class="function_name"> <a class="link" href="harfbuzz-hb-map.html#hb-map-get" title="hb_map_get ()">hb_map_get</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> * </td> <td class="function_name"> <a class="link" href="harfbuzz-hb-map.html#hb-map-get-empty" title="hb_map_get_empty ()">hb_map_get_empty</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type">unsigned <span class="returnvalue">int</span> </td> <td class="function_name"> <a class="link" href="harfbuzz-hb-map.html#hb-map-get-population" title="hb_map_get_population ()">hb_map_get_population</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="harfbuzz-hb-map.html#hb-map-get-user-data" title="hb_map_get_user_data ()">hb_map_get_user_data</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a> </td> <td class="function_name"> <a class="link" href="harfbuzz-hb-map.html#hb-map-has" title="hb_map_has ()">hb_map_has</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a> </td> <td class="function_name"> <a class="link" href="harfbuzz-hb-map.html#hb-map-is-empty" title="hb_map_is_empty ()">hb_map_is_empty</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> * </td> <td class="function_name"> <a class="link" href="harfbuzz-hb-map.html#hb-map-reference" title="hb_map_reference ()">hb_map_reference</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="harfbuzz-hb-map.html#hb-map-set" title="hb_map_set ()">hb_map_set</a> <span class="c_punctuation">()</span> </td> </tr> <tr> <td class="function_type"> <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a> </td> <td class="function_name"> <a class="link" href="harfbuzz-hb-map.html#hb-map-set-user-data" title="hb_map_set_user_data ()">hb_map_set_user_data</a> <span class="c_punctuation">()</span> </td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="harfbuzz-hb-map.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="define_keyword">#define</td> <td class="function_name"><a class="link" href="harfbuzz-hb-map.html#HB-MAP-VALUE-INVALID:CAPS" title="HB_MAP_VALUE_INVALID">HB_MAP_VALUE_INVALID</a></td> </tr> <tr> <td class="typedef_keyword">typedef</td> <td class="function_name"><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t">hb_map_t</a></td> </tr> </tbody> </table></div> </div> <div class="refsect1"> <a name="harfbuzz-hb-map.includes"></a><h2>Includes</h2> <pre class="synopsis">#include <hb.h> </pre> </div> <div class="refsect1"> <a name="harfbuzz-hb-map.description"></a><h2>Description</h2> <p>Map objects are integer-to-integer hash-maps. Currently they are not used in the HarfBuzz public API, but are provided for client's use if desired.</p> </div> <div class="refsect1"> <a name="harfbuzz-hb-map.functions_details"></a><h2>Functions</h2> <div class="refsect2"> <a name="hb-map-allocation-successful"></a><h3>hb_map_allocation_successful ()</h3> <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a> hb_map_allocation_successful (<em class="parameter"><code>const <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre> <p>Tests whether memory allocation for a set was successful.</p> <div class="refsect3"> <a name="hb-map-allocation-successful.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="hb-map-allocation-successful.returns"></a><h4>Returns</h4> <p> <code class="literal">true</code> if allocation succeeded, false otherwise</p> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-clear"></a><h3>hb_map_clear ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> hb_map_clear (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre> <p>Clears out the contents of <em class="parameter"><code>map</code></em> .</p> <div class="refsect3"> <a name="hb-map-clear.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-create"></a><h3>hb_map_create ()</h3> <pre class="programlisting"><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> * hb_map_create (<em class="parameter"><code><span class="type">void</span></code></em>);</pre> <p>Creates a new, initially empty map.</p> <p><span class="annotation">[Xconstructor]</span></p> <div class="refsect3"> <a name="hb-map-create.returns"></a><h4>Returns</h4> <p>The new <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a>. </p> <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-del"></a><h3>hb_map_del ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> hb_map_del (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>, <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> key</code></em>);</pre> <p>Removes <em class="parameter"><code>key</code></em> and its stored value from <em class="parameter"><code>map</code></em> .</p> <div class="refsect3"> <a name="hb-map-del.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>key</p></td> <td class="parameter_description"><p>The key to delete</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-destroy"></a><h3>hb_map_destroy ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> hb_map_destroy (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre> <p>Decreases the reference count on a map. When the reference count reaches zero, the map is destroyed, freeing all memory.</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="hb-map-destroy.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-get"></a><h3>hb_map_get ()</h3> <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="returnvalue">hb_codepoint_t</span></a> hb_map_get (<em class="parameter"><code>const <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>, <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> key</code></em>);</pre> <p>Fetches the value stored for <em class="parameter"><code>key</code></em> in <em class="parameter"><code>map</code></em> .</p> <div class="refsect3"> <a name="hb-map-get.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>key</p></td> <td class="parameter_description"><p>The key to query</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-get-empty"></a><h3>hb_map_get_empty ()</h3> <pre class="programlisting"><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> * hb_map_get_empty (<em class="parameter"><code><span class="type">void</span></code></em>);</pre> <p>Fetches the singleton empty <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a>.</p> <div class="refsect3"> <a name="hb-map-get-empty.returns"></a><h4>Returns</h4> <p>The empty <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a>. </p> <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-get-population"></a><h3>hb_map_get_population ()</h3> <pre class="programlisting">unsigned <span class="returnvalue">int</span> hb_map_get_population (<em class="parameter"><code>const <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre> <p>Returns the number of key-value pairs in the map.</p> <div class="refsect3"> <a name="hb-map-get-population.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="hb-map-get-population.returns"></a><h4>Returns</h4> <p> The population of <em class="parameter"><code>map</code></em> </p> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-get-user-data"></a><h3>hb_map_get_user_data ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> * hb_map_get_user_data (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>, <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-user-data-key-t" title="hb_user_data_key_t"><span class="type">hb_user_data_key_t</span></a> *key</code></em>);</pre> <p>Fetches the user data associated with the specified key, attached to the specified map.</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="hb-map-get-user-data.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>key</p></td> <td class="parameter_description"><p>The user-data key to query</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="hb-map-get-user-data.returns"></a><h4>Returns</h4> <p>A pointer to the user data. </p> <p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-has"></a><h3>hb_map_has ()</h3> <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a> hb_map_has (<em class="parameter"><code>const <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>, <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> key</code></em>);</pre> <p>Tests whether <em class="parameter"><code>key</code></em> is an element of <em class="parameter"><code>map</code></em> .</p> <div class="refsect3"> <a name="hb-map-has.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>key</p></td> <td class="parameter_description"><p>The key to query</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="hb-map-has.returns"></a><h4>Returns</h4> <p> <code class="literal">true</code> if <em class="parameter"><code>key</code></em> is found in <em class="parameter"><code>map</code></em> , false otherwise</p> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-is-empty"></a><h3>hb_map_is_empty ()</h3> <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a> hb_map_is_empty (<em class="parameter"><code>const <a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre> <p>Tests whether <em class="parameter"><code>map</code></em> is empty (contains no elements).</p> <div class="refsect3"> <a name="hb-map-is-empty.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="hb-map-is-empty.returns"></a><h4>Returns</h4> <p> <code class="literal">true</code> if <em class="parameter"><code>map</code></em> is empty</p> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-reference"></a><h3>hb_map_reference ()</h3> <pre class="programlisting"><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="returnvalue">hb_map_t</span></a> * hb_map_reference (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>);</pre> <p>Increases the reference count on a map.</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="hb-map-reference.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr></tbody> </table></div> </div> <div class="refsect3"> <a name="hb-map-reference.returns"></a><h4>Returns</h4> <p>The map. </p> <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-set"></a><h3>hb_map_set ()</h3> <pre class="programlisting"><span class="returnvalue">void</span> hb_map_set (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>, <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> key</code></em>, <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> value</code></em>);</pre> <p>Stores <em class="parameter"><code>key</code></em> :<em class="parameter"><code>value</code></em> in the map.</p> <div class="refsect3"> <a name="hb-map-set.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>key</p></td> <td class="parameter_description"><p>The key to store in the map</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>value</p></td> <td class="parameter_description"><p>The value to store for <em class="parameter"><code>key</code></em> </p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> <hr> <div class="refsect2"> <a name="hb-map-set-user-data"></a><h3>hb_map_set_user_data ()</h3> <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a> hb_map_set_user_data (<em class="parameter"><code><a class="link" href="harfbuzz-hb-map.html#hb-map-t" title="hb_map_t"><span class="type">hb_map_t</span></a> *map</code></em>, <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-user-data-key-t" title="hb_user_data_key_t"><span class="type">hb_user_data_key_t</span></a> *key</code></em>, <em class="parameter"><code><span class="type">void</span> *data</code></em>, <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-destroy-func-t" title="hb_destroy_func_t ()"><span class="type">hb_destroy_func_t</span></a> destroy</code></em>, <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="type">hb_bool_t</span></a> replace</code></em>);</pre> <p>Attaches a user-data key/data pair to the specified map.</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="hb-map-set-user-data.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>map</p></td> <td class="parameter_description"><p>A map</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>key</p></td> <td class="parameter_description"><p>The user-data key to set</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>data</p></td> <td class="parameter_description"><p>A pointer to the user data to set</p></td> <td class="parameter_annotations"> </td> </tr> <tr> <td class="parameter_name"><p>destroy</p></td> <td class="parameter_description"><p>A callback to call when <em class="parameter"><code>data</code></em> is not needed anymore. </p></td> <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL may be passed instead of a pointer to a location."><span class="acronym">optional</span></acronym>]</span></td> </tr> <tr> <td class="parameter_name"><p>replace</p></td> <td class="parameter_description"><p>Whether to replace an existing data with the same key</p></td> <td class="parameter_annotations"> </td> </tr> </tbody> </table></div> </div> <div class="refsect3"> <a name="hb-map-set-user-data.returns"></a><h4>Returns</h4> <p> <code class="literal">true</code> if success, <code class="literal">false</code> otherwise</p> </div> <p class="since">Since: <a class="link" href="api-index-1-7-7.html#api-index-1.7.7">1.7.7</a></p> </div> </div> <div class="refsect1"> <a name="harfbuzz-hb-map.other_details"></a><h2>Types and Values</h2> <div class="refsect2"> <a name="HB-MAP-VALUE-INVALID:CAPS"></a><h3>HB_MAP_VALUE_INVALID</h3> <pre class="programlisting">#define HB_MAP_VALUE_INVALID ((hb_codepoint_t) -1) </pre> </div> <hr> <div class="refsect2"> <a name="hb-map-t"></a><h3>hb_map_t</h3> <pre class="programlisting">typedef struct hb_map_t hb_map_t; </pre> <p>Data type for holding integer-to-integer hash maps.</p> </div> </div> </div> <div class="footer"> <hr>Generated by GTK-Doc V1.32</div> </body> </html>