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-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<title>Datasets</title>
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-<tr><td colspan="5" class="shortcuts">
-<a href="#glib-Datasets.synopsis" class="shortcut">Top</a>
-  | 
- <a href="#glib-Datasets.description" class="shortcut">Description</a>
-</td></tr>
-</table>
-<div class="refentry">
-<a name="glib-Datasets"></a><div class="titlepage"></div>
-<div class="refnamediv"><table width="100%"><tr>
-<td valign="top">
-<h2><span class="refentrytitle"><a name="glib-Datasets.top_of_page"></a>Datasets</span></h2>
-<p>Datasets — associate groups of data elements with
- particular memory locations</p>
-</td>
-<td valign="top" align="right"></td>
-</tr></table></div>
-<div class="refsynopsisdiv">
-<a name="glib-Datasets.synopsis"></a><h2>Synopsis</h2>
-<pre class="synopsis">
-#include &lt;glib.h&gt;
-
-#define <a class="link" href="glib-Datasets.html#g-dataset-id-set-data" title="g_dataset_id_set_data()">g_dataset_id_set_data</a> (l,
- k,
- d)
-<span class="returnvalue">void</span> <a class="link" href="glib-Datasets.html#g-dataset-id-set-data-full" title="g_dataset_id_set_data_full ()">g_dataset_id_set_data_full</a> (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a> dataset_location</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> key_id</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Datasets.html#GDestroyNotify" title="GDestroyNotify ()"><span class="type">GDestroyNotify</span></a> destroy_func</code></em>);
-<span class="returnvalue">void</span> (<a class="link" href="glib-Datasets.html#GDestroyNotify" title="GDestroyNotify ()">*GDestroyNotify</a>) (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);
-<a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="returnvalue">gpointer</span></a> <a class="link" href="glib-Datasets.html#g-dataset-id-get-data" title="g_dataset_id_get_data ()">g_dataset_id_get_data</a> (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a> dataset_location</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> key_id</code></em>);
-#define <a class="link" href="glib-Datasets.html#g-dataset-id-remove-data" title="g_dataset_id_remove_data()">g_dataset_id_remove_data</a> (l,
- k)
-<a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="returnvalue">gpointer</span></a> <a class="link" href="glib-Datasets.html#g-dataset-id-remove-no-notify" title="g_dataset_id_remove_no_notify ()">g_dataset_id_remove_no_notify</a> (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a> dataset_location</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> key_id</code></em>);
-
-#define <a class="link" href="glib-Datasets.html#g-dataset-set-data" title="g_dataset_set_data()">g_dataset_set_data</a> (l,
- k,
- d)
-#define <a class="link" href="glib-Datasets.html#g-dataset-set-data-full" title="g_dataset_set_data_full()">g_dataset_set_data_full</a> (l,
- k,
- d,
- f)
-#define <a class="link" href="glib-Datasets.html#g-dataset-get-data" title="g_dataset_get_data()">g_dataset_get_data</a> (l,
- k)
-#define <a class="link" href="glib-Datasets.html#g-dataset-remove-data" title="g_dataset_remove_data()">g_dataset_remove_data</a> (l,
- k)
-#define <a class="link" href="glib-Datasets.html#g-dataset-remove-no-notify" title="g_dataset_remove_no_notify()">g_dataset_remove_no_notify</a> (l,
- k)
-
-<span class="returnvalue">void</span> <a class="link" href="glib-Datasets.html#g-dataset-foreach" title="g_dataset_foreach ()">g_dataset_foreach</a> (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a> dataset_location</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Datasets.html#GDataForeachFunc" title="GDataForeachFunc ()"><span class="type">GDataForeachFunc</span></a> func</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> user_data</code></em>);
-<span class="returnvalue">void</span> (<a class="link" href="glib-Datasets.html#GDataForeachFunc" title="GDataForeachFunc ()">*GDataForeachFunc</a>) (<em class="parameter"><code><a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> key_id</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> user_data</code></em>);
-<span class="returnvalue">void</span> <a class="link" href="glib-Datasets.html#g-dataset-destroy" title="g_dataset_destroy ()">g_dataset_destroy</a> (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a> dataset_location</code></em>);
-</pre>
-</div>
-<div class="refsect1">
-<a name="glib-Datasets.description"></a><h2>Description</h2>
-<p>
-Datasets associate groups of data elements with particular memory
-locations. These are useful if you need to associate data with a
-structure returned from an external library. Since you cannot modify
-the structure, you use its location in memory as the key into a
-dataset, where you can associate any number of data elements with it.
-</p>
-<p>
-There are two forms of most of the dataset functions. The first form
-uses strings to identify the data elements associated with a
-location. The second form uses <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> identifiers, which are
-created with a call to <a class="link" href="glib-Quarks.html#g-quark-from-string" title="g_quark_from_string ()"><code class="function">g_quark_from_string()</code></a> or
-<a class="link" href="glib-Quarks.html#g-quark-from-static-string" title="g_quark_from_static_string ()"><code class="function">g_quark_from_static_string()</code></a>. The second form is quicker, since it
-does not require looking up the string in the hash table of <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a>
-identifiers.
-</p>
-<p>
-There is no function to create a dataset. It is automatically
-created as soon as you add elements to it.
-</p>
-<p>
-To add data elements to a dataset use <a class="link" href="glib-Datasets.html#g-dataset-id-set-data" title="g_dataset_id_set_data()"><code class="function">g_dataset_id_set_data()</code></a>,
-<a class="link" href="glib-Datasets.html#g-dataset-id-set-data-full" title="g_dataset_id_set_data_full ()"><code class="function">g_dataset_id_set_data_full()</code></a>, <a class="link" href="glib-Datasets.html#g-dataset-set-data" title="g_dataset_set_data()"><code class="function">g_dataset_set_data()</code></a> and
-<a class="link" href="glib-Datasets.html#g-dataset-set-data-full" title="g_dataset_set_data_full()"><code class="function">g_dataset_set_data_full()</code></a>.
-</p>
-<p>
-To get data elements from a dataset use <a class="link" href="glib-Datasets.html#g-dataset-id-get-data" title="g_dataset_id_get_data ()"><code class="function">g_dataset_id_get_data()</code></a> and
-<a class="link" href="glib-Datasets.html#g-dataset-get-data" title="g_dataset_get_data()"><code class="function">g_dataset_get_data()</code></a>.
-</p>
-<p>
-To iterate over all data elements in a dataset use
-<a class="link" href="glib-Datasets.html#g-dataset-foreach" title="g_dataset_foreach ()"><code class="function">g_dataset_foreach()</code></a> (not thread-safe).
-</p>
-<p>
-To remove data elements from a dataset use
-<a class="link" href="glib-Datasets.html#g-dataset-id-remove-data" title="g_dataset_id_remove_data()"><code class="function">g_dataset_id_remove_data()</code></a> and <a class="link" href="glib-Datasets.html#g-dataset-remove-data" title="g_dataset_remove_data()"><code class="function">g_dataset_remove_data()</code></a>.
-</p>
-<p>
-To destroy a dataset, use <a class="link" href="glib-Datasets.html#g-dataset-destroy" title="g_dataset_destroy ()"><code class="function">g_dataset_destroy()</code></a>.
-</p>
-</div>
-<div class="refsect1">
-<a name="glib-Datasets.details"></a><h2>Details</h2>
-<div class="refsect2">
-<a name="g-dataset-id-set-data"></a><h3>g_dataset_id_set_data()</h3>
-<pre class="programlisting">#define g_dataset_id_set_data(l, k, d)</pre>
-<p>
-Sets the data element associated with the given <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> id. Any
-previous data with the same key is removed, and its destroy function
-is called.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>l</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>k</code></em> :</span></p></td>
-<td>the <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> id to identify the data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>d</code></em> :</span></p></td>
-<td>the data element.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="g-dataset-id-set-data-full"></a><h3>g_dataset_id_set_data_full ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_dataset_id_set_data_full (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a> dataset_location</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> key_id</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Datasets.html#GDestroyNotify" title="GDestroyNotify ()"><span class="type">GDestroyNotify</span></a> destroy_func</code></em>);</pre>
-<p>
-Sets the data element associated with the given <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> id, and also
-the function to call when the data element is destroyed. Any
-previous data with the same key is removed, and its destroy function
-is called.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>dataset_location</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>key_id</code></em> :</span></p></td>
-<td>the <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> id to identify the data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td>the data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>destroy_func</code></em> :</span></p></td>
-<td>the function to call when the data element is
-removed. This function will be called with the data
-element and can be used to free any memory allocated
-for it.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="GDestroyNotify"></a><h3>GDestroyNotify ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> (*GDestroyNotify) (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
-<p>
-Specifies the type of function which is called when a data element
-is destroyed. It is passed the pointer to the data element and
-should free any memory and resources allocated for it.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody><tr>
-<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td>the data element.</td>
-</tr></tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="g-dataset-id-get-data"></a><h3>g_dataset_id_get_data ()</h3>
-<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="returnvalue">gpointer</span></a> g_dataset_id_get_data (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a> dataset_location</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> key_id</code></em>);</pre>
-<p>
-Gets the data element corresponding to a <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a>.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>dataset_location</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>key_id</code></em> :</span></p></td>
-<td>the <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> id to identify the data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td>the data element corresponding to the <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if
-it is not found.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="g-dataset-id-remove-data"></a><h3>g_dataset_id_remove_data()</h3>
-<pre class="programlisting">#define g_dataset_id_remove_data(l, k)</pre>
-<p>
-Removes a data element from a dataset. The data element's destroy
-function is called if it has been set.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>l</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>k</code></em> :</span></p></td>
-<td>the <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> id identifying the data element.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="g-dataset-id-remove-no-notify"></a><h3>g_dataset_id_remove_no_notify ()</h3>
-<pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="returnvalue">gpointer</span></a> g_dataset_id_remove_no_notify (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a> dataset_location</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> key_id</code></em>);</pre>
-<p>
-Removes an element, without calling its destroy notification
-function.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>dataset_location</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>key_id</code></em> :</span></p></td>
-<td>the <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> ID identifying the data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td>the data previously stored at <em class="parameter"><code>key_id</code></em>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if none.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="g-dataset-set-data"></a><h3>g_dataset_set_data()</h3>
-<pre class="programlisting">#define g_dataset_set_data(l, k, d)</pre>
-<p>
-Sets the data corresponding to the given string identifier.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>l</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>k</code></em> :</span></p></td>
-<td>the string to identify the data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>d</code></em> :</span></p></td>
-<td>the data element.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="g-dataset-set-data-full"></a><h3>g_dataset_set_data_full()</h3>
-<pre class="programlisting">#define g_dataset_set_data_full(l, k, d, f)</pre>
-<p>
-Sets the data corresponding to the given string identifier, and the
-function to call when the data element is destroyed.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>l</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>k</code></em> :</span></p></td>
-<td>the string to identify the data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>d</code></em> :</span></p></td>
-<td>the data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>f</code></em> :</span></p></td>
-<td>the function to call when the data element is removed. This
-function will be called with the data element and can be used to
-free any memory allocated for it.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="g-dataset-get-data"></a><h3>g_dataset_get_data()</h3>
-<pre class="programlisting">#define g_dataset_get_data(l, k)</pre>
-<p>
-Gets the data element corresponding to a string.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>l</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>k</code></em> :</span></p></td>
-<td>the string identifying the data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
-<td>the data element corresponding to the string, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if
-it is not found.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="g-dataset-remove-data"></a><h3>g_dataset_remove_data()</h3>
-<pre class="programlisting">#define g_dataset_remove_data(l, k)</pre>
-<p>
-Removes a data element corresponding to a string. Its destroy
-function is called if it has been set.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>l</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>k</code></em> :</span></p></td>
-<td>the string identifying the data element.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="g-dataset-remove-no-notify"></a><h3>g_dataset_remove_no_notify()</h3>
-<pre class="programlisting">#define g_dataset_remove_no_notify(l, k)</pre>
-<p>
-Removes an element, without calling its destroy notifier.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>l</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>k</code></em> :</span></p></td>
-<td>the string identifying the data element.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="g-dataset-foreach"></a><h3>g_dataset_foreach ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_dataset_foreach (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a> dataset_location</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Datasets.html#GDataForeachFunc" title="GDataForeachFunc ()"><span class="type">GDataForeachFunc</span></a> func</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
-<p>
-Calls the given function for each data element which is associated
-with the given location. Note that this function is NOT thread-safe.
-So unless <em class="parameter"><code>datalist</code></em> can be protected from any modifications during
-invocation of this function, it should not be called.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>dataset_location</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>func</code></em> :</span></p></td>
-<td>the function to call for each data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
-<td>user data to pass to the function.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="GDataForeachFunc"></a><h3>GDataForeachFunc ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> (*GDataForeachFunc) (<em class="parameter"><code><a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> key_id</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>,
- <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
-<p>
-Specifies the type of function passed to <a class="link" href="glib-Datasets.html#g-dataset-foreach" title="g_dataset_foreach ()"><code class="function">g_dataset_foreach()</code></a>. It is
-called with each <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> id and associated data element, together
-with the <em class="parameter"><code>user_data</code></em> parameter supplied to <a class="link" href="glib-Datasets.html#g-dataset-foreach" title="g_dataset_foreach ()"><code class="function">g_dataset_foreach()</code></a>.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>key_id</code></em> :</span></p></td>
-<td>the <a class="link" href="glib-Quarks.html#GQuark" title="GQuark"><span class="type">GQuark</span></a> id to identifying the data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td>
-<td>the data element.</td>
-</tr>
-<tr>
-<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
-<td>user data passed to <a class="link" href="glib-Datasets.html#g-dataset-foreach" title="g_dataset_foreach ()"><code class="function">g_dataset_foreach()</code></a>.</td>
-</tr>
-</tbody>
-</table></div>
-</div>
-<hr>
-<div class="refsect2">
-<a name="g-dataset-destroy"></a><h3>g_dataset_destroy ()</h3>
-<pre class="programlisting"><span class="returnvalue">void</span> g_dataset_destroy (<em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gconstpointer" title="gconstpointer"><span class="type">gconstpointer</span></a> dataset_location</code></em>);</pre>
-<p>
-Destroys the dataset, freeing all memory allocated, and calling any
-destroy functions set for data elements.
-</p>
-<div class="variablelist"><table border="0">
-<col align="left" valign="top">
-<tbody><tr>
-<td><p><span class="term"><em class="parameter"><code>dataset_location</code></em> :</span></p></td>
-<td>the location identifying the dataset.</td>
-</tr></tbody>
-</table></div>
-</div>
-</div>
-</div>
-<div class="footer">
-<hr>
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