pango-opentype-font-handling.html

linux

href="../glib/glib-Standard-Macros.html#NULL:CAPS"
><code class="literal">NULL</code></a>.
</td>
</tr>
<tr>
<td><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> <a
href="../glib/glib-Standard-Macros.html#TRUE:CAPS"
><code class="literal">TRUE</code></a> if the script was found.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3263278"></a><h3>
<a name="pango-ot-info-find-language"></a>pango_ot_info_find_language ()</h3>
<a class="indexterm" name="id3263292"></a><pre class="programlisting"><a
href="../glib/glib-Basic-Types.html#gboolean"
>gboolean</a>            pango_ot_info_find_language         (<a href="pango-OpenType-Font-Handling.html#PangoOTInfo">PangoOTInfo</a> *info,
                                                         <a href="pango-OpenType-Font-Handling.html#PangoOTTableType">PangoOTTableType</a> table_type,
                                                         <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> script_index,
                                                         <a href="pango-OpenType-Font-Handling.html#PangoOTTag">PangoOTTag</a> language_tag,
                                                         <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> *language_index,
                                                         <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> *required_feature_index);</pre>
<p>
Finds the index of a language and its required feature index.
If the language is not found, sets <em class="parameter"><code>language_index</code></em> to
PANGO_OT_DEFAULT_LANGUAGE and the required feature of the default language
system is returned in required_feature_index.  For best compatibility with
some fonts, also searches the language system tag 'dflt' before falling
back to the default language system, but that is transparent to the user.
The user can simply ignore the return value of this function to
automatically fall back to the default language system.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term"><em class="parameter"><code>info</code></em>&#160;:</span></td>
<td> a <a href="pango-OpenType-Font-Handling.html#PangoOTInfo"><span class="type">PangoOTInfo</span></a>.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>table_type</code></em>&#160;:</span></td>
<td> the table type to obtain information about.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>script_index</code></em>&#160;:</span></td>
<td> the index of the script whose languages are searched.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>language_tag</code></em>&#160;:</span></td>
<td> the tag of the language to find.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>language_index</code></em>&#160;:</span></td>
<td> location to store the index of the language, or <a
href="../glib/glib-Standard-Macros.html#NULL:CAPS"
><code class="literal">NULL</code></a>.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>required_feature_index</code></em>&#160;:</span></td>
<td> location to store the required feature index of
   the language, or <a
href="../glib/glib-Standard-Macros.html#NULL:CAPS"
><code class="literal">NULL</code></a>.
</td>
</tr>
<tr>
<td><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> <a
href="../glib/glib-Standard-Macros.html#TRUE:CAPS"
><code class="literal">TRUE</code></a> if the language was found.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3263518"></a><h3>
<a name="pango-ot-info-find-feature"></a>pango_ot_info_find_feature ()</h3>
<a class="indexterm" name="id3263532"></a><pre class="programlisting"><a
href="../glib/glib-Basic-Types.html#gboolean"
>gboolean</a>            pango_ot_info_find_feature          (<a href="pango-OpenType-Font-Handling.html#PangoOTInfo">PangoOTInfo</a> *info,
                                                         <a href="pango-OpenType-Font-Handling.html#PangoOTTableType">PangoOTTableType</a> table_type,
                                                         <a href="pango-OpenType-Font-Handling.html#PangoOTTag">PangoOTTag</a> feature_tag,
                                                         <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> script_index,
                                                         <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> language_index,
                                                         <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> *feature_index);</pre>
<p>
Finds the index of a feature.  If the feature is not found, sets
<em class="parameter"><code>feature_index</code></em> to PANGO_OT_NO_FEATURE, which is safe to pass to
<a href="pango-OpenType-Font-Handling.html#pango-ot-ruleset-add-feature"><code class="function">pango_ot_ruleset_add_feature()</code></a> and similar functions.
</p>
<p>
In the future, this may set <em class="parameter"><code>feature_index</code></em> to an special value that if used
in <a href="pango-OpenType-Font-Handling.html#pango-ot-ruleset-add-feature"><code class="function">pango_ot_ruleset_add_feature()</code></a> will ask Pango to synthesize the
requested feature based on Unicode properties and data.  However, this
function will still return <a
href="../glib/glib-Standard-Macros.html#FALSE:CAPS"
><code class="literal">FALSE</code></a> in those cases.  So, users may want to
ignore the return value of this function in certain cases.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term"><em class="parameter"><code>info</code></em>&#160;:</span></td>
<td> a <a href="pango-OpenType-Font-Handling.html#PangoOTInfo"><span class="type">PangoOTInfo</span></a>.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>table_type</code></em>&#160;:</span></td>
<td> the table type to obtain information about.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>feature_tag</code></em>&#160;:</span></td>
<td> the tag of the feature to find.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>script_index</code></em>&#160;:</span></td>
<td> the index of the script.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>language_index</code></em>&#160;:</span></td>
<td> the index of the language whose features are searched,
    or <a href="pango-OpenType-Font-Handling.html#PANGO-OT-DEFAULT-LANGUAGE:CAPS"><code class="literal">PANGO_OT_DEFAULT_LANGUAGE</code></a> to use the default language of the script.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>feature_index</code></em>&#160;:</span></td>
<td> location to store the index of the feature, or <a
href="../glib/glib-Standard-Macros.html#NULL:CAPS"
><code class="literal">NULL</code></a>.
</td>
</tr>
<tr>
<td><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> <a
href="../glib/glib-Standard-Macros.html#TRUE:CAPS"
><code class="literal">TRUE</code></a> if the feature was found.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3263800"></a><h3>
<a name="pango-ot-info-list-scripts"></a>pango_ot_info_list_scripts ()</h3>
<a class="indexterm" name="id3263813"></a><pre class="programlisting"><a href="pango-OpenType-Font-Handling.html#PangoOTTag">PangoOTTag</a>*         pango_ot_info_list_scripts          (<a href="pango-OpenType-Font-Handling.html#PangoOTInfo">PangoOTInfo</a> *info,
                                                         <a href="pango-OpenType-Font-Handling.html#PangoOTTableType">PangoOTTableType</a> table_type);</pre>
<p>
Obtains the list of available scripts.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term"><em class="parameter"><code>info</code></em>&#160;:</span></td>
<td> a <a href="pango-OpenType-Font-Handling.html#PangoOTInfo"><span class="type">PangoOTInfo</span></a>.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>table_type</code></em>&#160;:</span></td>
<td> the table type to obtain information about.
</td>
</tr>
<tr>
<td><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> a newly-allocated zero-terminated array containing the tags of the
  available scripts.  Should be freed using <a
href="../glib/glib-Memory-Allocation.html#g-free"
><code class="function">g_free()</code></a>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id3263915"></a><h3>
<a name="pango-ot-info-list-languages"></a>pango_ot_info_list_languages ()</h3>
<a class="indexterm" name="id3263929"></a><pre class="programlisting"><a href="pango-OpenType-Font-Handling.html#PangoOTTag">PangoOTTag</a>*         pango_ot_info_list_languages        (<a href="pango-OpenType-Font-Handling.html#PangoOTInfo">PangoOTInfo</a> *info,
                                                         <a href="pango-OpenType-Font-Handling.html#PangoOTTableType">PangoOTTableType</a> table_type,
                                                         <a
href="../glib/glib-Basic-Types.html#guint"
>guint</a> script_index,
                                                         <a href="pango-OpenType-Font-Handling.html#PangoOTTag">PangoOTTag</a> language_tag);</pre>
<p>
Obtains the list of available languages for a given script.</p>
<p>

</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term"><em class="parameter"><code>info</code></em>&#160;:</span></td>
<td> a <a href="pango-OpenType-Font-Handling.html#PangoOTInfo"><span class="type">PangoOTInfo</span></a>.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>table_type</code></em>&#160;:</span></td>
<td> the table type to obtain information about.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>script_index</code></em>&#160;:</span></td>
<td> the index of the script to list languages for.
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>language_tag</code></em>&#160;:</span></td>
<td> unused parameter.
</td>
</tr>
<tr>
<td><span class="term"><span class="emphasis"><em>Returns</em></span>&#160;:</span></td>
<td> a newly-allocated zero-terminated array containing the tags of the
  available languages.  Should be freed using <a
href="../glib/glib-Memory-Allocation.html#g-free"
><code class="function">g_free()</code></a>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">