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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Open Chinese Convert: OpenCC C API</title>
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  <td id="projectalign" style="padding-left: 0.5em;">
   <div id="projectname">Open Chinese Convert
   &#160;<span id="projectnumber">1.0.4</span>
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   <div id="projectbrief">A project for conversion between Traditional and Simplified Chinese</div>
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<div class="header">
  <div class="summary">
<a href="#define-members">Macros</a> &#124;
<a href="#typedef-members">Typedefs</a> &#124;
<a href="#func-members">Functions</a>  </div>
  <div class="headertitle">
<div class="title">OpenCC C API</div>  </div>
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<p>API in C language.  
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:ga05b32035094049395f8975f9d2ffa1a2"><td class="memItemLeft" align="right" valign="top"><a id="ga05b32035094049395f8975f9d2ffa1a2"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__opencc__c__api.html#ga05b32035094049395f8975f9d2ffa1a2">OPENCC_DEFAULT_CONFIG_SIMP_TO_TRAD</a>&#160;&#160;&#160;&quot;s2t.json&quot;</td></tr>
<tr class="memdesc:ga05b32035094049395f8975f9d2ffa1a2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Filename of default Simplified to Traditional configuration. <br /></td></tr>
<tr class="separator:ga05b32035094049395f8975f9d2ffa1a2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaede2d75ff352d979e89dfc390aa855c8"><td class="memItemLeft" align="right" valign="top"><a id="gaede2d75ff352d979e89dfc390aa855c8"></a>
#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__opencc__c__api.html#gaede2d75ff352d979e89dfc390aa855c8">OPENCC_DEFAULT_CONFIG_TRAD_TO_SIMP</a>&#160;&#160;&#160;&quot;t2s.json&quot;</td></tr>
<tr class="memdesc:gaede2d75ff352d979e89dfc390aa855c8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Filename of default Traditional to Simplified configuration. <br /></td></tr>
<tr class="separator:gaede2d75ff352d979e89dfc390aa855c8"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:gaa08a1436fedc071dc6fc352c98a6ade9"><td class="memItemLeft" align="right" valign="top"><a id="gaa08a1436fedc071dc6fc352c98a6ade9"></a>
typedef void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__opencc__c__api.html#gaa08a1436fedc071dc6fc352c98a6ade9">opencc_t</a></td></tr>
<tr class="memdesc:gaa08a1436fedc071dc6fc352c98a6ade9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Type of opencc descriptor. <br /></td></tr>
<tr class="separator:gaa08a1436fedc071dc6fc352c98a6ade9"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga3aa43bc27b880c05c14c15b2c8952336"><td class="memItemLeft" align="right" valign="top">OPENCC_EXPORT <a class="el" href="group__opencc__c__api.html#gaa08a1436fedc071dc6fc352c98a6ade9">opencc_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__opencc__c__api.html#ga3aa43bc27b880c05c14c15b2c8952336">opencc_open</a> (const char *configFileName)</td></tr>
<tr class="memdesc:ga3aa43bc27b880c05c14c15b2c8952336"><td class="mdescLeft">&#160;</td><td class="mdescRight">Makes an instance of opencc.  <a href="#ga3aa43bc27b880c05c14c15b2c8952336">More...</a><br /></td></tr>
<tr class="separator:ga3aa43bc27b880c05c14c15b2c8952336"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gae4d995fd7bb65e2d4f386aa5cf0dbbb1"><td class="memItemLeft" align="right" valign="top">OPENCC_EXPORT int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__opencc__c__api.html#gae4d995fd7bb65e2d4f386aa5cf0dbbb1">opencc_close</a> (<a class="el" href="group__opencc__c__api.html#gaa08a1436fedc071dc6fc352c98a6ade9">opencc_t</a> opencc)</td></tr>
<tr class="memdesc:gae4d995fd7bb65e2d4f386aa5cf0dbbb1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destroys an instance of opencc.  <a href="#gae4d995fd7bb65e2d4f386aa5cf0dbbb1">More...</a><br /></td></tr>
<tr class="separator:gae4d995fd7bb65e2d4f386aa5cf0dbbb1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga9922ab17f25a2d93060292630eb46b81"><td class="memItemLeft" align="right" valign="top">OPENCC_EXPORT size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__opencc__c__api.html#ga9922ab17f25a2d93060292630eb46b81">opencc_convert_utf8_to_buffer</a> (<a class="el" href="group__opencc__c__api.html#gaa08a1436fedc071dc6fc352c98a6ade9">opencc_t</a> opencc, const char *input, size_t length, char *output)</td></tr>
<tr class="memdesc:ga9922ab17f25a2d93060292630eb46b81"><td class="mdescLeft">&#160;</td><td class="mdescRight">Converts UTF-8 string.  <a href="#ga9922ab17f25a2d93060292630eb46b81">More...</a><br /></td></tr>
<tr class="separator:ga9922ab17f25a2d93060292630eb46b81"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaedebe843f05973efd295461be90d50f2"><td class="memItemLeft" align="right" valign="top">OPENCC_EXPORT char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__opencc__c__api.html#gaedebe843f05973efd295461be90d50f2">opencc_convert_utf8</a> (<a class="el" href="group__opencc__c__api.html#gaa08a1436fedc071dc6fc352c98a6ade9">opencc_t</a> opencc, const char *input, size_t length)</td></tr>
<tr class="memdesc:gaedebe843f05973efd295461be90d50f2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Converts UTF-8 string This function returns an allocated C-Style string, which stores the converted string.  <a href="#gaedebe843f05973efd295461be90d50f2">More...</a><br /></td></tr>
<tr class="separator:gaedebe843f05973efd295461be90d50f2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga6c11f94e7bee16c080e6d8ab5c16ea84"><td class="memItemLeft" align="right" valign="top">OPENCC_EXPORT void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__opencc__c__api.html#ga6c11f94e7bee16c080e6d8ab5c16ea84">opencc_convert_utf8_free</a> (char *str)</td></tr>
<tr class="memdesc:ga6c11f94e7bee16c080e6d8ab5c16ea84"><td class="mdescLeft">&#160;</td><td class="mdescRight">Releases allocated buffer by opencc_convert_utf8.  <a href="#ga6c11f94e7bee16c080e6d8ab5c16ea84">More...</a><br /></td></tr>
<tr class="separator:ga6c11f94e7bee16c080e6d8ab5c16ea84"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga57698a98df649f5f3f4239419f0867bc"><td class="memItemLeft" align="right" valign="top">OPENCC_EXPORT const char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__opencc__c__api.html#ga57698a98df649f5f3f4239419f0867bc">opencc_error</a> (void)</td></tr>
<tr class="memdesc:ga57698a98df649f5f3f4239419f0867bc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the last error message.  <a href="#ga57698a98df649f5f3f4239419f0867bc">More...</a><br /></td></tr>
<tr class="separator:ga57698a98df649f5f3f4239419f0867bc"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>API in C language. </p>
<h2 class="groupheader">Function Documentation</h2>
<a id="gae4d995fd7bb65e2d4f386aa5cf0dbbb1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gae4d995fd7bb65e2d4f386aa5cf0dbbb1">&#9670;&nbsp;</a></span>opencc_close()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">OPENCC_EXPORT int opencc_close </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__opencc__c__api.html#gaa08a1436fedc071dc6fc352c98a6ade9">opencc_t</a>&#160;</td>
          <td class="paramname"><em>opencc</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Destroys an instance of opencc. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">opencc</td><td>The description pointer. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 on success or non-zero number on failure. </dd></dl>

</div>
</div>
<a id="gaedebe843f05973efd295461be90d50f2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaedebe843f05973efd295461be90d50f2">&#9670;&nbsp;</a></span>opencc_convert_utf8()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">OPENCC_EXPORT char* opencc_convert_utf8 </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__opencc__c__api.html#gaa08a1436fedc071dc6fc352c98a6ade9">opencc_t</a>&#160;</td>
          <td class="paramname"><em>opencc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>input</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>length</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Converts UTF-8 string This function returns an allocated C-Style string, which stores the converted string. </p>
<p>You MUST call <a class="el" href="group__opencc__c__api.html#ga6c11f94e7bee16c080e6d8ab5c16ea84" title="Releases allocated buffer by opencc_convert_utf8. ">opencc_convert_utf8_free()</a> to release allocated memory.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">opencc</td><td>The opencc description pointer. </td></tr>
    <tr><td class="paramname">input</td><td>The UTF-8 encoded string. </td></tr>
    <tr><td class="paramname">length</td><td>The maximum length in byte to convert. If length is (size_t)-1, the whole string (terminated by '\0') will be converted.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The newly allocated UTF-8 string that stores text converted, or NULL on error. </dd></dl>

</div>
</div>
<a id="ga6c11f94e7bee16c080e6d8ab5c16ea84"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga6c11f94e7bee16c080e6d8ab5c16ea84">&#9670;&nbsp;</a></span>opencc_convert_utf8_free()</h2>

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<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">OPENCC_EXPORT void opencc_convert_utf8_free </td>
          <td>(</td>
          <td class="paramtype">char *&#160;</td>
          <td class="paramname"><em>str</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Releases allocated buffer by opencc_convert_utf8. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">str</td><td>Pointer to the allocated string buffer by opencc_convert_utf8. </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a id="ga9922ab17f25a2d93060292630eb46b81"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga9922ab17f25a2d93060292630eb46b81">&#9670;&nbsp;</a></span>opencc_convert_utf8_to_buffer()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">OPENCC_EXPORT size_t opencc_convert_utf8_to_buffer </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__opencc__c__api.html#gaa08a1436fedc071dc6fc352c98a6ade9">opencc_t</a>&#160;</td>
          <td class="paramname"><em>opencc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>input</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>length</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">char *&#160;</td>
          <td class="paramname"><em>output</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Converts UTF-8 string. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">opencc</td><td>The opencc description pointer. </td></tr>
    <tr><td class="paramname">input</td><td>The UTF-8 encoded string. </td></tr>
    <tr><td class="paramname">length</td><td>The maximum length in byte to convert. If length is (size_t)-1, the whole string (terminated by '\0') will be converted. </td></tr>
    <tr><td class="paramname">output</td><td>The buffer to store converted text. You MUST make sure this buffer has sufficient space.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The length of converted string or (size_t)-1 on error. </dd></dl>

</div>
</div>
<a id="ga57698a98df649f5f3f4239419f0867bc"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga57698a98df649f5f3f4239419f0867bc">&#9670;&nbsp;</a></span>opencc_error()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">OPENCC_EXPORT const char* opencc_error </td>
          <td>(</td>
          <td class="paramtype">void&#160;</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Returns the last error message. </p>
<p>Note that this function is the only one which is NOT thread-safe. </p>

</div>
</div>
<a id="ga3aa43bc27b880c05c14c15b2c8952336"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga3aa43bc27b880c05c14c15b2c8952336">&#9670;&nbsp;</a></span>opencc_open()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">OPENCC_EXPORT <a class="el" href="group__opencc__c__api.html#gaa08a1436fedc071dc6fc352c98a6ade9">opencc_t</a> opencc_open </td>
          <td>(</td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>configFileName</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Makes an instance of opencc. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">configFileName</td><td>Location of configuration file. If this is set to NULL, OPENCC_DEFAULT_CONFIG_SIMP_TO_TRAD will be loaded. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A description pointer of the newly allocated instance of opencc. On error the return value will be (opencc_t) -1. </dd></dl>

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