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<?xml version="1.0"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
<!ENTITY version SYSTEM "version.xml">
]>
<refentry id="ClutterTexture">
<refmeta>
<refentrytitle id="top_of_page">ClutterTexture</refentrytitle>
<manvolnum>3</manvolnum>
<refmiscinfo>CLUTTER Library</refmiscinfo>
</refmeta>
<refnamediv>
<refname>ClutterTexture</refname>
<refpurpose>An actor for displaying and manipulating images.</refpurpose>
<!--[<xref linkend="desc" endterm="desc.title"/>]-->
</refnamediv>
<refsynopsisdiv id="synopsis">
<title id="synopsis.title">Synopsis</title>
<synopsis>
typedef <link linkend="ClutterTexturePrivate">ClutterTexturePrivate</link>;
<link linkend="ClutterTexture-struct">ClutterTexture</link>;
<link linkend="ClutterActor">ClutterActor</link>* <link linkend="clutter-texture-new-from-pixbuf">clutter_texture_new_from_pixbuf</link>
(<link linkend="GdkPixbuf">GdkPixbuf</link> *pixbuf);
<link linkend="ClutterActor">ClutterActor</link>* <link linkend="clutter-texture-new">clutter_texture_new</link> (void);
<link linkend="void">void</link> <link linkend="clutter-texture-set-pixbuf">clutter_texture_set_pixbuf</link> (<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="GdkPixbuf">GdkPixbuf</link> *pixbuf);
<link linkend="GdkPixbuf">GdkPixbuf</link>* <link linkend="clutter-texture-get-pixbuf">clutter_texture_get_pixbuf</link> (<link linkend="ClutterTexture">ClutterTexture</link> *texture);
<link linkend="void">void</link> <link linkend="clutter-texture-get-base-size">clutter_texture_get_base_size</link> (<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="gint">gint</link> *width,
<link linkend="gint">gint</link> *height);
<link linkend="void">void</link> <link linkend="clutter-texture-bind-tile">clutter_texture_bind_tile</link> (<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="gint">gint</link> index);
<link linkend="void">void</link> <link linkend="clutter-texture-get-n-tiles">clutter_texture_get_n_tiles</link> (<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="gint">gint</link> *n_x_tiles,
<link linkend="gint">gint</link> *n_y_tiles);
<link linkend="void">void</link> <link linkend="clutter-texture-get-x-tile-detail">clutter_texture_get_x_tile_detail</link>
(<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="gint">gint</link> x_index,
<link linkend="gint">gint</link> *pos,
<link linkend="gint">gint</link> *size,
<link linkend="gint">gint</link> *waste);
<link linkend="void">void</link> <link linkend="clutter-texture-get-y-tile-detail">clutter_texture_get_y_tile_detail</link>
(<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="gint">gint</link> y_index,
<link linkend="gint">gint</link> *pos,
<link linkend="gint">gint</link> *size,
<link linkend="gint">gint</link> *waste);
<link linkend="gboolean">gboolean</link> <link linkend="clutter-texture-has-generated-tiles">clutter_texture_has_generated_tiles</link>
(<link linkend="ClutterTexture">ClutterTexture</link> *texture);
<link linkend="gboolean">gboolean</link> <link linkend="clutter-texture-is-tiled">clutter_texture_is_tiled</link> (<link linkend="ClutterTexture">ClutterTexture</link> *texture);
</synopsis>
</refsynopsisdiv>
<refsect1 id="object_hierarchy">
<title id="object_hierarchy.title">Object Hierarchy</title>
<synopsis>
<link linkend="GObject">GObject</link>
+----<link linkend="ClutterActor">ClutterActor</link>
+----ClutterTexture
+----<link linkend="ClutterVideoTexture">ClutterVideoTexture</link>
+----<link linkend="ClutterLabel">ClutterLabel</link>
</synopsis>
</refsect1>
<refsect1 id="properties">
<title id="properties.title">Properties</title>
<synopsis>
"<link linkend="ClutterTexture--filter-quality">filter-quality</link>" <link linkend="gint">gint</link> : Read / Write / Construct
"<link linkend="ClutterTexture--pixbuf">pixbuf</link>" <link linkend="gpointer">gpointer</link> : Read / Write
"<link linkend="ClutterTexture--pixel-format">pixel-format</link>" <link linkend="gint">gint</link> : Read / Write / Construct Only
"<link linkend="ClutterTexture--pixel-type">pixel-type</link>" <link linkend="gint">gint</link> : Read / Write / Construct Only
"<link linkend="ClutterTexture--repeat-x">repeat-x</link>" <link linkend="gboolean">gboolean</link> : Read / Write / Construct
"<link linkend="ClutterTexture--repeat-y">repeat-y</link>" <link linkend="gboolean">gboolean</link> : Read / Write / Construct
"<link linkend="ClutterTexture--sync-size">sync-size</link>" <link linkend="gboolean">gboolean</link> : Read / Write / Construct
"<link linkend="ClutterTexture--tile-waste">tile-waste</link>" <link linkend="gint">gint</link> : Read / Write / Construct Only
"<link linkend="ClutterTexture--tiled">tiled</link>" <link linkend="gboolean">gboolean</link> : Read / Write / Construct Only
</synopsis>
</refsect1>
<refsect1 id="signal_proto">
<title id="signal_proto.title">Signals</title>
<synopsis>
"<link linkend="ClutterTexture-pixbuf-change">pixbuf-change</link>"
<link linkend="void">void</link> user_function (<link linkend="ClutterTexture">ClutterTexture</link> *cluttertexture,
<link linkend="gpointer">gpointer</link> user_data) : Run last
"<link linkend="ClutterTexture-size-change">size-change</link>"
<link linkend="void">void</link> user_function (<link linkend="ClutterTexture">ClutterTexture</link> *cluttertexture,
<link linkend="gint">gint</link> arg1,
<link linkend="gint">gint</link> arg2,
<link linkend="gpointer">gpointer</link> user_data) : Run last
</synopsis>
</refsect1>
<refsect1 id="desc">
<title id="desc.title">Description</title>
<para>
<link linkend="ClutterTexture"><type>ClutterTexture</type></link> is a base class for displaying and manipulating pixel
buffer type data.</para>
<para>
</para>
</refsect1>
<refsect1 id="details">
<title id="details.title">Details</title>
<refsect2>
<title><anchor id="ClutterTexturePrivate" role="typedef"/>ClutterTexturePrivate</title>
<indexterm><primary>ClutterTexturePrivate</primary></indexterm><programlisting>typedef struct ClutterTexturePrivate ClutterTexturePrivate ;
</programlisting>
<para>
</para></refsect2>
<refsect2>
<title><anchor id="ClutterTexture-struct" role="struct"/>ClutterTexture</title>
<indexterm><primary>ClutterTexture</primary></indexterm><programlisting>typedef struct _ClutterTexture ClutterTexture;</programlisting>
<para>
</para></refsect2>
<refsect2>
<title><anchor id="clutter-texture-new-from-pixbuf" role="function"/>clutter_texture_new_from_pixbuf ()</title>
<indexterm><primary>clutter_texture_new_from_pixbuf</primary></indexterm><programlisting><link linkend="ClutterActor">ClutterActor</link>* clutter_texture_new_from_pixbuf
(<link linkend="GdkPixbuf">GdkPixbuf</link> *pixbuf);</programlisting>
<para>
Creates a new <link linkend="ClutterTexture"><type>ClutterTexture</type></link> object.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>pixbuf</parameter> :</term>
<listitem><simpara> A <link linkend="GdkPixbuf"><type>GdkPixbuf</type></link>
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara> A newly created <link linkend="ClutterTexture"><type>ClutterTexture</type></link> object.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="clutter-texture-new" role="function"/>clutter_texture_new ()</title>
<indexterm><primary>clutter_texture_new</primary></indexterm><programlisting><link linkend="ClutterActor">ClutterActor</link>* clutter_texture_new (void);</programlisting>
<para>
Creates a new empty <link linkend="ClutterTexture"><type>ClutterTexture</type></link> object.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara> A newly created <link linkend="ClutterTexture"><type>ClutterTexture</type></link> object.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="clutter-texture-set-pixbuf" role="function"/>clutter_texture_set_pixbuf ()</title>
<indexterm><primary>clutter_texture_set_pixbuf</primary></indexterm><programlisting><link linkend="void">void</link> clutter_texture_set_pixbuf (<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="GdkPixbuf">GdkPixbuf</link> *pixbuf);</programlisting>
<para>
Sets the underlying <link linkend="GdkPixbuf"><type>GdkPixbuf</type></link> for the <link linkend="ClutterTexture"><type>ClutterTexture</type></link></para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>texture</parameter> :</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>pixbuf</parameter> :</term>
<listitem><simpara> A <link linkend="GdkPixbuf"><type>GdkPixbuf</type></link>
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="clutter-texture-get-pixbuf" role="function"/>clutter_texture_get_pixbuf ()</title>
<indexterm><primary>clutter_texture_get_pixbuf</primary></indexterm><programlisting><link linkend="GdkPixbuf">GdkPixbuf</link>* clutter_texture_get_pixbuf (<link linkend="ClutterTexture">ClutterTexture</link> *texture);</programlisting>
<para>
Gets the underlying <link linkend="GdkPixbuf"><type>GdkPixbuf</type></link> for the <link linkend="ClutterTexture"><type>ClutterTexture</type></link></para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>texture</parameter> :</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara> The underlying <link linkend="GdkPixbuf"><type>GdkPixbuf</type></link>
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="clutter-texture-get-base-size" role="function"/>clutter_texture_get_base_size ()</title>
<indexterm><primary>clutter_texture_get_base_size</primary></indexterm><programlisting><link linkend="void">void</link> clutter_texture_get_base_size (<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="gint">gint</link> *width,
<link linkend="gint">gint</link> *height);</programlisting>
<para>
Gets the size in pixels of the untransformed underlying texture pixbuf data.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>texture</parameter> :</term>
<listitem><simpara> A <link linkend="ClutterTexture"><type>ClutterTexture</type></link>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>width</parameter> :</term>
<listitem><simpara> Pointer to gint to be populated with width value if non NULL.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>height</parameter> :</term>
<listitem><simpara> Pointer to gint to be populated with height value if non NULL.
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="clutter-texture-bind-tile" role="function"/>clutter_texture_bind_tile ()</title>
<indexterm><primary>clutter_texture_bind_tile</primary></indexterm><programlisting><link linkend="void">void</link> clutter_texture_bind_tile (<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="gint">gint</link> index);</programlisting>
<para>
Proxys a call to glBindTexture a to bind an internal 'tile'.
</para>
<para>
This function is only useful for sub class implementations
and never should be called by an application.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>texture</parameter> :</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>index</parameter> :</term>
<listitem><simpara> Tile index to bind
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="clutter-texture-get-n-tiles" role="function"/>clutter_texture_get_n_tiles ()</title>
<indexterm><primary>clutter_texture_get_n_tiles</primary></indexterm><programlisting><link linkend="void">void</link> clutter_texture_get_n_tiles (<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="gint">gint</link> *n_x_tiles,
<link linkend="gint">gint</link> *n_y_tiles);</programlisting>
<para>
Retreives internal tile dimentioning.
</para>
<para>
This function is only useful for sub class implementations
and never should be called by an application.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>texture</parameter> :</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>n_x_tiles</parameter> :</term>
<listitem><simpara> Location to store number of tiles in horizonally axis
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>n_y_tiles</parameter> :</term>
<listitem><simpara> Location to store number of tiles in vertical axis
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="clutter-texture-get-x-tile-detail" role="function"/>clutter_texture_get_x_tile_detail ()</title>
<indexterm><primary>clutter_texture_get_x_tile_detail</primary></indexterm><programlisting><link linkend="void">void</link> clutter_texture_get_x_tile_detail
(<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="gint">gint</link> x_index,
<link linkend="gint">gint</link> *pos,
<link linkend="gint">gint</link> *size,
<link linkend="gint">gint</link> *waste);</programlisting>
<para>
Retreives details of a tile on x axis.
</para>
<para>
This function is only useful for sub class implementations
and never should be called by an application.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>texture</parameter> :</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>x_index</parameter> :</term>
<listitem><simpara> X index of tile to query
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>pos</parameter> :</term>
<listitem><simpara> Location to store tiles X position
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>size</parameter> :</term>
<listitem><simpara> Location to store tiles horizontal size in pixels
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>waste</parameter> :</term>
<listitem><simpara> Location to store tiles horizontal wastage in pixels
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="clutter-texture-get-y-tile-detail" role="function"/>clutter_texture_get_y_tile_detail ()</title>
<indexterm><primary>clutter_texture_get_y_tile_detail</primary></indexterm><programlisting><link linkend="void">void</link> clutter_texture_get_y_tile_detail
(<link linkend="ClutterTexture">ClutterTexture</link> *texture,
<link linkend="gint">gint</link> y_index,
<link linkend="gint">gint</link> *pos,
<link linkend="gint">gint</link> *size,
<link linkend="gint">gint</link> *waste);</programlisting>
<para>
Retreives details of a tile on y axis.
</para>
<para>
This function is only useful for sub class implementations
and never should be called by an application.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>texture</parameter> :</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>y_index</parameter> :</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>pos</parameter> :</term>
<listitem><simpara> Location to store tiles Y position
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>size</parameter> :</term>
<listitem><simpara> Location to store tiles vertical size in pixels
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>waste</parameter> :</term>
<listitem><simpara> Location to store tiles vertical wastage in pixels
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="clutter-texture-has-generated-tiles" role="function"/>clutter_texture_has_generated_tiles ()</title>
<indexterm><primary>clutter_texture_has_generated_tiles</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link> clutter_texture_has_generated_tiles
(<link linkend="ClutterTexture">ClutterTexture</link> *texture);</programlisting>
<para>
Checks if <link linkend="ClutterTexture"><type>ClutterTexture</type></link> is tiled.
</para>
<para>
This function is only useful for sub class implementations
and never should be called by an application.</para>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>texture</parameter> :</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara> TRUE if texture is tiled
</simpara></listitem></varlistentry>
</variablelist></refsect2>
<refsect2>
<title><anchor id="clutter-texture-is-tiled" role="function"/>clutter_texture_is_tiled ()</title>
<indexterm><primary>clutter_texture_is_tiled</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link> clutter_texture_is_tiled (<link linkend="ClutterTexture">ClutterTexture</link> *texture);</programlisting>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>texture</parameter> :</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><emphasis>Returns</emphasis> :</term><listitem><simpara>
</simpara></listitem></varlistentry>
</variablelist></refsect2>
</refsect1>
<refsect1 id="property_details">
<title id="property_details.title">Property Details</title>
<refsect2><title><anchor id="ClutterTexture--filter-quality"/>The "<literal>filter-quality</literal>" property</title>
<indexterm><primary>ClutterTexture:filter-quality</primary></indexterm><programlisting> "filter-quality" <link linkend="gint">gint</link> : Read / Write / Construct</programlisting>
<para>Values 0 and 1 current only supported, with 0being lower quality but fast, 1 being better quality but slower. ( Currently just maps to GL_NEAREST / GL_LINEAR ).</para><para>Allowed values: >= 0</para>
<para>Default value: 1</para>
</refsect2>
<refsect2><title><anchor id="ClutterTexture--pixbuf"/>The "<literal>pixbuf</literal>" property</title>
<indexterm><primary>ClutterTexture:pixbuf</primary></indexterm><programlisting> "pixbuf" <link linkend="gpointer">gpointer</link> : Read / Write</programlisting>
<para>Pixbuf source for Texture.</para></refsect2>
<refsect2><title><anchor id="ClutterTexture--pixel-format"/>The "<literal>pixel-format</literal>" property</title>
<indexterm><primary>ClutterTexture:pixel-format</primary></indexterm><programlisting> "pixel-format" <link linkend="gint">gint</link> : Read / Write / Construct Only</programlisting>
<para>GL texture pixel format used.</para><para>Allowed values: >= 0</para>
<para>Default value: 6408</para>
</refsect2>
<refsect2><title><anchor id="ClutterTexture--pixel-type"/>The "<literal>pixel-type</literal>" property</title>
<indexterm><primary>ClutterTexture:pixel-type</primary></indexterm><programlisting> "pixel-type" <link linkend="gint">gint</link> : Read / Write / Construct Only</programlisting>
<para>GL texture pixel type used.</para><para>Allowed values: >= 0</para>
<para>Default value: 5121</para>
</refsect2>
<refsect2><title><anchor id="ClutterTexture--repeat-x"/>The "<literal>repeat-x</literal>" property</title>
<indexterm><primary>ClutterTexture:repeat-x</primary></indexterm><programlisting> "repeat-x" <link linkend="gboolean">gboolean</link> : Read / Write / Construct</programlisting>
<para>Reapeat underlying pixbuf rather than scalein x direction. Currently UNWORKING.</para><para>Default value: FALSE</para>
</refsect2>
<refsect2><title><anchor id="ClutterTexture--repeat-y"/>The "<literal>repeat-y</literal>" property</title>
<indexterm><primary>ClutterTexture:repeat-y</primary></indexterm><programlisting> "repeat-y" <link linkend="gboolean">gboolean</link> : Read / Write / Construct</programlisting>
<para>Reapeat underlying pixbuf rather than scalein y direction. Currently UNWORKING.</para><para>Default value: FALSE</para>
</refsect2>
<refsect2><title><anchor id="ClutterTexture--sync-size"/>The "<literal>sync-size</literal>" property</title>
<indexterm><primary>ClutterTexture:sync-size</primary></indexterm><programlisting> "sync-size" <link linkend="gboolean">gboolean</link> : Read / Write / Construct</programlisting>
<para>Auto sync size of actor to underlying pixbufdimentions.</para><para>Default value: TRUE</para>
</refsect2>
<refsect2><title><anchor id="ClutterTexture--tile-waste"/>The "<literal>tile-waste</literal>" property</title>
<indexterm><primary>ClutterTexture:tile-waste</primary></indexterm><programlisting> "tile-waste" <link linkend="gint">gint</link> : Read / Write / Construct Only</programlisting>
<para>Max wastage dimention of a texture when using tiled textures. Bigger values use less textures, smaller values less texture memory. .</para><para>Allowed values: >= 0</para>
<para>Default value: 64</para>
</refsect2>
<refsect2><title><anchor id="ClutterTexture--tiled"/>The "<literal>tiled</literal>" property</title>
<indexterm><primary>ClutterTexture:tiled</primary></indexterm><programlisting> "tiled" <link linkend="gboolean">gboolean</link> : Read / Write / Construct Only</programlisting>
<para>Enables the use of tiled GL textures to more efficiently use available texture memory.</para><para>Default value: TRUE</para>
</refsect2>
</refsect1>
<refsect1 id="signals">
<title id="signals.title">Signal Details</title>
<refsect2><title><anchor id="ClutterTexture-pixbuf-change"/>The "pixbuf-change" signal</title>
<indexterm><primary>ClutterTexture::pixbuf-change</primary></indexterm><programlisting><link linkend="void">void</link> user_function (<link linkend="ClutterTexture">ClutterTexture</link> *cluttertexture,
<link linkend="gpointer">gpointer</link> user_data) : Run last</programlisting>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>cluttertexture</parameter> :</term>
<listitem><simpara>the object which received the signal.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>user_data</parameter> :</term>
<listitem><simpara>user data set when the signal handler was connected.</simpara></listitem></varlistentry>
</variablelist></refsect2><refsect2><title><anchor id="ClutterTexture-size-change"/>The "size-change" signal</title>
<indexterm><primary>ClutterTexture::size-change</primary></indexterm><programlisting><link linkend="void">void</link> user_function (<link linkend="ClutterTexture">ClutterTexture</link> *cluttertexture,
<link linkend="gint">gint</link> arg1,
<link linkend="gint">gint</link> arg2,
<link linkend="gpointer">gpointer</link> user_data) : Run last</programlisting>
<para>
</para><variablelist role="params">
<varlistentry><term><parameter>cluttertexture</parameter> :</term>
<listitem><simpara>the object which received the signal.
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>arg1</parameter> :</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>arg2</parameter> :</term>
<listitem><simpara>
</simpara></listitem></varlistentry>
<varlistentry><term><parameter>user_data</parameter> :</term>
<listitem><simpara>user data set when the signal handler was connected.</simpara></listitem></varlistentry>
</variablelist></refsect2>
</refsect1>
</refentry>
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