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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Gwyddion Widgets Library Reference Manual: gwyradiobuttons</title>
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<a name="libgwydgets-gwyradiobuttons"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="libgwydgets-gwyradiobuttons.top_of_page"></a>gwyradiobuttons</span></h2>
<p>gwyradiobuttons — Radio button constructors for enums</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="libgwydgets-gwyradiobuttons.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include &lt;libgwydgets/gwydgets.h&gt;

<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Singly-Linked-Lists.html#GSList"><span class="returnvalue">GSList</span></a> *            <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-create" title="gwy_radio_buttons_create ()">gwy_radio_buttons_create</a>            (<em class="parameter"><code>const <a href="../libgwyddion/GwyEnum.html"><span class="type">GwyEnum</span></a> *entries</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> nentries</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/gobject/gobject-Closures.html#GCallback"><span class="type">GCallback</span></a> callback</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> cbdata</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> current</code></em>);
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Singly-Linked-Lists.html#GSList"><span class="returnvalue">GSList</span></a> *            <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-createl" title="gwy_radio_buttons_createl ()">gwy_radio_buttons_createl</a>           (<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/gobject/gobject-Closures.html#GCallback"><span class="type">GCallback</span></a> callback</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> cbdata</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> current</code></em>,
                                                         <em class="parameter"><code>...</code></em>);
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-attach-to-table" title="gwy_radio_buttons_attach_to_table ()">gwy_radio_buttons_attach_to_table</a>   (<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> *group</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/gtk/GtkTable.html"><span class="type">GtkTable</span></a> *table</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> colspan</code></em>,
                                                         <em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> row</code></em>);
<a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-set-current" title="gwy_radio_buttons_set_current ()">gwy_radio_buttons_set_current</a>       (<em class="parameter"><code><a href="http://developer.gnome.org/doc/API/2.0/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> *group</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> current</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-get-current" title="gwy_radio_buttons_get_current ()">gwy_radio_buttons_get_current</a>       (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> *group</code></em>);
<a href="/usr/share/gtk-doc/html/gtk3/GtkWidget.html"><span class="returnvalue">GtkWidget</span></a> *         <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-find" title="gwy_radio_buttons_find ()">gwy_radio_buttons_find</a>              (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> *group</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> value</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-button-get-value" title="gwy_radio_button_get_value ()">gwy_radio_button_get_value</a>          (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gtk3/GtkWidget.html"><span class="type">GtkWidget</span></a> *button</code></em>);
<span class="returnvalue">void</span>                <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-button-set-value" title="gwy_radio_button_set_value ()">gwy_radio_button_set_value</a>          (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gtk3/GtkWidget.html"><span class="type">GtkWidget</span></a> *button</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> value</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="libgwydgets-gwyradiobuttons.description"></a><h2>Description</h2>
<p>
Groups of button associated with some integers can be easily constructed
from <a href="../libgwyddion/GwyEnum.html"><span class="type">GwyEnum</span></a>'s with <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-create" title="gwy_radio_buttons_create ()"><code class="function">gwy_radio_buttons_create()</code></a>.
</p>
</div>
<div class="refsect1">
<a name="libgwydgets-gwyradiobuttons.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="gwy-radio-buttons-create"></a><h3>gwy_radio_buttons_create ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="returnvalue">GSList</span></a> *            gwy_radio_buttons_create            (<em class="parameter"><code>const <a href="../libgwyddion/GwyEnum.html"><span class="type">GwyEnum</span></a> *entries</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> nentries</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Closures.html#GCallback"><span class="type">GCallback</span></a> callback</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> cbdata</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> current</code></em>);</pre>
<p>
Creates a radio button group from an enum.
</p>
<p>
Try to avoid -1 as an enum value.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>entries</code></em> :</span></p></td>
<td>Radio button group items.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>nentries</code></em> :</span></p></td>
<td>The number of items.  Since 2.18 negative value means that
<em class="parameter"><code>entries</code></em> is terminated with a <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>-named item.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>callback</code></em> :</span></p></td>
<td>A callback called when a menu item is activated (or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> for
no callback).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cbdata</code></em> :</span></p></td>
<td>User data passed to the callback.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>current</code></em> :</span></p></td>
<td>Value to be shown as currently selected (-1 to use what happens
to be first).</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The newly created radio button group (a <a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a>).  Iterate over
the list and pack the widgets (the order is the same as in
<em class="parameter"><code>entries</code></em>).  The group is owned by the buttons and must not be
freed.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-radio-buttons-createl"></a><h3>gwy_radio_buttons_createl ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="returnvalue">GSList</span></a> *            gwy_radio_buttons_createl           (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Closures.html#GCallback"><span class="type">GCallback</span></a> callback</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> cbdata</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> current</code></em>,
                                                         <em class="parameter"><code>...</code></em>);</pre>
<p>
Creates a radio button group from a list of label/value pairs.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>callback</code></em> :</span></p></td>
<td>A callback called when a menu item is activated (or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> for
no callback).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>cbdata</code></em> :</span></p></td>
<td>User data passed to the callback.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>current</code></em> :</span></p></td>
<td>Value to be shown as currently selected (-1 to use what happens
to be first).</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>...</code></em> :</span></p></td>
<td>First item label, first item value, second item label, second item
value, etc.  Terminated with <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The newly created radio button group (a <a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a>).  Iterate over
the list and pack the widgets (the order is the same as in
<em class="parameter"><code>entries</code></em>).  The group is owned by the buttons and must not be
freed.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.5</p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-radio-buttons-attach-to-table"></a><h3>gwy_radio_buttons_attach_to_table ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gwy_radio_buttons_attach_to_table   (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> *group</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gtk3/GtkTable.html"><span class="type">GtkTable</span></a> *table</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> colspan</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> row</code></em>);</pre>
<p>
Attaches a group of radio buttons to table rows.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td>
<td>A radio button group.  Not necessarily created by
<a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-create" title="gwy_radio_buttons_create ()"><code class="function">gwy_radio_buttons_create()</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>table</code></em> :</span></p></td>
<td>A table.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>colspan</code></em> :</span></p></td>
<td>The number of columns the radio buttons should span across.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>row</code></em> :</span></p></td>
<td>Table row to start attaching at.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The row after the last attached radio button.</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.1</p>
</div>
<hr>
<div class="refsect2">
<a name="gwy-radio-buttons-set-current"></a><h3>gwy_radio_buttons_set_current ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            gwy_radio_buttons_set_current       (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> *group</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> current</code></em>);</pre>
<p>
Sets currently selected radio button in <em class="parameter"><code>group</code></em> based on integer item object
data (as set by <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-create" title="gwy_radio_buttons_create ()"><code class="function">gwy_radio_buttons_create()</code></a>).
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td>
<td>A radio button group created by <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-create" title="gwy_radio_buttons_create ()"><code class="function">gwy_radio_buttons_create()</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>current</code></em> :</span></p></td>
<td>Value to be shown as currently selected.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if current button was set, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> if <em class="parameter"><code>current</code></em> was not found.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-radio-buttons-get-current"></a><h3>gwy_radio_buttons_get_current ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gwy_radio_buttons_get_current       (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> *group</code></em>);</pre>
<p>
Gets the integer enum value corresponding to currently selected item.
</p>
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<td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td>
<td>A radio button group created by <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-create" title="gwy_radio_buttons_create ()"><code class="function">gwy_radio_buttons_create()</code></a>.</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The enum value corresponding to currently selected item.  In
case of failure -1 is returned.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-radio-buttons-find"></a><h3>gwy_radio_buttons_find ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gtk3/GtkWidget.html"><span class="returnvalue">GtkWidget</span></a> *         gwy_radio_buttons_find              (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Singly-Linked-Lists.html#GSList"><span class="type">GSList</span></a> *group</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> value</code></em>);</pre>
<p>
Finds a radio button by its associated integer value.
</p>
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<td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td>
<td>A radio button group created by <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-create" title="gwy_radio_buttons_create ()"><code class="function">gwy_radio_buttons_create()</code></a>.</td>
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<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>The value associated with the button to find.</td>
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<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The radio button corresponding to <em class="parameter"><code>value</code></em>, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> on failure.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-radio-button-get-value"></a><h3>gwy_radio_button_get_value ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a>                gwy_radio_button_get_value          (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gtk3/GtkWidget.html"><span class="type">GtkWidget</span></a> *button</code></em>);</pre>
<p>
Gets the integer value associated with a radio button.
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<td><p><span class="term"><em class="parameter"><code>button</code></em> :</span></p></td>
<td>A radio button belonging to a group created by
<a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-create" title="gwy_radio_buttons_create ()"><code class="function">gwy_radio_buttons_create()</code></a>.</td>
</tr>
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<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The integer value corresponding to <em class="parameter"><code>button</code></em>.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gwy-radio-button-set-value"></a><h3>gwy_radio_button_set_value ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>                gwy_radio_button_set_value          (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gtk3/GtkWidget.html"><span class="type">GtkWidget</span></a> *button</code></em>,
                                                         <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> value</code></em>);</pre>
<p>
Sets the integer value associated with a radio button.
</p>
<p>
This function allow to change associated radio button values after creation
or even construct a radio button group with associated integers without the
help of <a class="link" href="libgwydgets-gwyradiobuttons.html#gwy-radio-buttons-create" title="gwy_radio_buttons_create ()"><code class="function">gwy_radio_buttons_create()</code></a>.
</p>
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<td><p><span class="term"><em class="parameter"><code>button</code></em> :</span></p></td>
<td>A radio button to set associated value of.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td>
<td>Value to associate.</td>
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</table></div>
</div>
</div>
<div class="refsect1">
<a name="libgwydgets-gwyradiobuttons.see-also"></a><h2>See Also</h2>
<a class="link" href="libgwydgets-gwycombobox.html" title="gwycombobox">gwycombobox</a>
           -- combo box constructors
</div>
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