<refentry id="exo-Extensions-to-GObject">
<refmeta>
<refentrytitle>Extensions to GObject</refentrytitle>
<manvolnum>3</manvolnum>
<refmiscinfo>EXO Library</refmiscinfo>
</refmeta>

<refnamediv>
<refname>Extensions to GObject</refname><refpurpose>Miscelleanous extensions to the GObject library</refpurpose>
</refnamediv>

<refsynopsisdiv><title>Synopsis</title>

<synopsis>

#include &lt;exo/exo.h&gt;


<link linkend="gboolean">gboolean</link>    <link linkend="exo-g-value-transform-negate">exo_g_value_transform_negate</link>    (const <link linkend="GValue">GValue</link> *src_value,
                                             <link linkend="GValue">GValue</link> *dst_value);
</synopsis>
</refsynopsisdiv>









<refsect1>
<title>Description</title>
<para>
This facility includes several functions to extend the basic
functionality provided by the GObject library.
</para>
</refsect1>

<refsect1>
<title>Details</title>
<refsect2>
<title><anchor id="exo-g-value-transform-negate"/>exo_g_value_transform_negate ()</title>
<indexterm><primary>exo_g_value_transform_negate</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link>    exo_g_value_transform_negate    (const <link linkend="GValue">GValue</link> *src_value,
                                             <link linkend="GValue">GValue</link> *dst_value);</programlisting>
<para>
Applies boolean negation to <parameter>src_value</parameter> and stores the result
in <parameter>dst_value</parameter>.
</para>
<para>
This function is mostly useful for binding boolean properties
with inversing.</para>
<para>

</para><variablelist role="params">
<varlistentry><term><parameter>src_value</parameter>&nbsp;:</term>
<listitem><simpara> A value convertible to <type>gboolean</type>.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>dst_value</parameter>&nbsp;:</term>
<listitem><simpara> A value which can be assigned a <type>gboolean</type>.
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> <literal>TRUE</literal> on successful transformation.
</simpara></listitem></varlistentry>
</variablelist></refsect2>

</refsect1>



<refsect1>
<title>See Also</title>
<para>
<ulink url="http://developer.gnome.org/doc/API/2.0/gobject/">GObject
Reference Manual</ulink>
</para>
</refsect1>

</refentry>
