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<div class="refentry">
<a name="gnome-desktop3-gnome-bg"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="gnome-desktop3-gnome-bg.top_of_page"></a>GnomeBG</span></h2>
<p>GnomeBG</p>
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<div class="refsynopsisdiv">
<a name="gnome-desktop3-gnome-bg.synopsis"></a><h2>Synopsis</h2>
<a name="GnomeBG"></a><pre class="synopsis"><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="returnvalue">GnomeBG</span></a> * <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-new" title="gnome_bg_new ()">gnome_bg_new</a> (<em class="parameter"><code><span class="type">void</span></code></em>);
<span class="returnvalue">void</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-load-from-preferences" title="gnome_bg_load_from_preferences ()">gnome_bg_load_from_preferences</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GSettings</span> *settings</code></em>);
<span class="returnvalue">void</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-save-to-preferences" title="gnome_bg_save_to_preferences ()">gnome_bg_save_to_preferences</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GSettings</span> *settings</code></em>);
<span class="returnvalue">void</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-set-filename" title="gnome_bg_set_filename ()">gnome_bg_set_filename</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *filename</code></em>);
<span class="returnvalue">void</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-set-placement" title="gnome_bg_set_placement ()">gnome_bg_set_placement</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GDesktopBackgroundStyle</span> placement</code></em>);
<span class="returnvalue">void</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-set-color" title="gnome_bg_set_color ()">gnome_bg_set_color</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GDesktopBackgroundShading</span> type</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/gdk3-Colors.html#GdkColor"><span class="type">GdkColor</span></a> *primary</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/gdk3-Colors.html#GdkColor"><span class="type">GdkColor</span></a> *secondary</code></em>);
<span class="returnvalue">void</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-set-draw-background" title="gnome_bg_set_draw_background ()">gnome_bg_set_draw_background</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> draw_background</code></em>);
<span class="returnvalue">GDesktopBackgroundStyle</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-get-placement" title="gnome_bg_get_placement ()">gnome_bg_get_placement</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-get-draw-background" title="gnome_bg_get_draw_background ()">gnome_bg_get_draw_background</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>);
<span class="returnvalue">void</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-get-color" title="gnome_bg_get_color ()">gnome_bg_get_color</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GDesktopBackgroundShading</span> *type</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/gdk3-Colors.html#GdkColor"><span class="type">GdkColor</span></a> *primary</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/gdk3-Colors.html#GdkColor"><span class="type">GdkColor</span></a> *secondary</code></em>);
const <span class="returnvalue">gchar</span> * <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-get-filename" title="gnome_bg_get_filename ()">gnome_bg_get_filename</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>);
<span class="returnvalue">void</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-draw" title="gnome_bg_draw ()">gnome_bg_draw</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GdkPixbuf</span> *dest</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> is_root</code></em>);
<a href="/gnome/usr/share/gtk-doc/html/cairo/cairo-cairo-surface-t.html#cairo-surface-t"><span class="returnvalue">cairo_surface_t</span></a> * <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-create-surface" title="gnome_bg_create_surface ()">gnome_bg_create_surface</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/gdk3-Windows.html#GdkWindow"><span class="type">GdkWindow</span></a> *window</code></em>,
<em class="parameter"><code><span class="type">int</span> width</code></em>,
<em class="parameter"><code><span class="type">int</span> height</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> root</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-get-image-size" title="gnome_bg_get_image_size ()">gnome_bg_get_image_size</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><a class="link" href="GnomeDesktopThumbnailFactory.html" title="GnomeDesktopThumbnailFactory"><span class="type">GnomeDesktopThumbnailFactory</span></a> *factory</code></em>,
<em class="parameter"><code><span class="type">int</span> best_width</code></em>,
<em class="parameter"><code><span class="type">int</span> best_height</code></em>,
<em class="parameter"><code><span class="type">int</span> *width</code></em>,
<em class="parameter"><code><span class="type">int</span> *height</code></em>);
<span class="returnvalue">GdkPixbuf</span> * <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-create-thumbnail" title="gnome_bg_create_thumbnail ()">gnome_bg_create_thumbnail</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><a class="link" href="GnomeDesktopThumbnailFactory.html" title="GnomeDesktopThumbnailFactory"><span class="type">GnomeDesktopThumbnailFactory</span></a> *factory</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_width</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_height</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-is-dark" title="gnome_bg_is_dark ()">gnome_bg_is_dark</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_width</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_height</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-has-multiple-sizes" title="gnome_bg_has_multiple_sizes ()">gnome_bg_has_multiple_sizes</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>);
<span class="returnvalue">gboolean</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-changes-with-time" title="gnome_bg_changes_with_time ()">gnome_bg_changes_with_time</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>);
<span class="returnvalue">GdkPixbuf</span> * <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-create-frame-thumbnail" title="gnome_bg_create_frame_thumbnail ()">gnome_bg_create_frame_thumbnail</a> (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><a class="link" href="GnomeDesktopThumbnailFactory.html" title="GnomeDesktopThumbnailFactory"><span class="type">GnomeDesktopThumbnailFactory</span></a> *factory</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_width</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_height</code></em>,
<em class="parameter"><code><span class="type">int</span> frame_num</code></em>);
<span class="returnvalue">void</span> <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-set-surface-as-root" title="gnome_bg_set_surface_as_root ()">gnome_bg_set_surface_as_root</a> (<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>,
<em class="parameter"><code><a href="/gnome/usr/share/gtk-doc/html/cairo/cairo-cairo-surface-t.html#cairo-surface-t"><span class="type">cairo_surface_t</span></a> *surface</code></em>);
<span class="returnvalue">GnomeBGCrossfade</span> * <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-set-surface-as-root-with-crossfade" title="gnome_bg_set_surface_as_root_with_crossfade ()">gnome_bg_set_surface_as_root_with_crossfade</a>
(<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>,
<em class="parameter"><code><a href="/gnome/usr/share/gtk-doc/html/cairo/cairo-cairo-surface-t.html#cairo-surface-t"><span class="type">cairo_surface_t</span></a> *surface</code></em>);
<a href="/gnome/usr/share/gtk-doc/html/cairo/cairo-cairo-surface-t.html#cairo-surface-t"><span class="returnvalue">cairo_surface_t</span></a> * <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-get-surface-from-root" title="gnome_bg_get_surface_from_root ()">gnome_bg_get_surface_from_root</a> (<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>);
<a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG-struct" title="GnomeBG">GnomeBG</a>;
<a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBGClass" title="GnomeBGClass">GnomeBGClass</a>;
</pre>
</div>
<div class="refsect1">
<a name="gnome-desktop3-gnome-bg.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
GObject
+----GnomeBG
</pre>
</div>
<div class="refsect1">
<a name="gnome-desktop3-gnome-bg.signals"></a><h2>Signals</h2>
<pre class="synopsis">
"<a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG-changed" title='The "changed" signal'>changed</a>" : <code class="literal">Run Last</code>
"<a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG-transitioned" title='The "transitioned" signal'>transitioned</a>" : <code class="literal">Run Last</code>
</pre>
</div>
<div class="refsect1">
<a name="gnome-desktop3-gnome-bg.description"></a><h2>Description</h2>
<p>
</p>
</div>
<div class="refsect1">
<a name="gnome-desktop3-gnome-bg.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="gnome-bg-new"></a><h3>gnome_bg_new ()</h3>
<pre class="programlisting"><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="returnvalue">GnomeBG</span></a> * gnome_bg_new (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-load-from-preferences"></a><h3>gnome_bg_load_from_preferences ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gnome_bg_load_from_preferences (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GSettings</span> *settings</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-save-to-preferences"></a><h3>gnome_bg_save_to_preferences ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gnome_bg_save_to_preferences (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GSettings</span> *settings</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-set-filename"></a><h3>gnome_bg_set_filename ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gnome_bg_set_filename (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *filename</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-set-placement"></a><h3>gnome_bg_set_placement ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gnome_bg_set_placement (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GDesktopBackgroundStyle</span> placement</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-set-color"></a><h3>gnome_bg_set_color ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gnome_bg_set_color (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GDesktopBackgroundShading</span> type</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/gdk3-Colors.html#GdkColor"><span class="type">GdkColor</span></a> *primary</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/gdk3-Colors.html#GdkColor"><span class="type">GdkColor</span></a> *secondary</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-set-draw-background"></a><h3>gnome_bg_set_draw_background ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gnome_bg_set_draw_background (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> draw_background</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-get-placement"></a><h3>gnome_bg_get_placement ()</h3>
<pre class="programlisting"><span class="returnvalue">GDesktopBackgroundStyle</span> gnome_bg_get_placement (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-get-draw-background"></a><h3>gnome_bg_get_draw_background ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> gnome_bg_get_draw_background (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-get-color"></a><h3>gnome_bg_get_color ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gnome_bg_get_color (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GDesktopBackgroundShading</span> *type</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/gdk3-Colors.html#GdkColor"><span class="type">GdkColor</span></a> *primary</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/gdk3-Colors.html#GdkColor"><span class="type">GdkColor</span></a> *secondary</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-get-filename"></a><h3>gnome_bg_get_filename ()</h3>
<pre class="programlisting">const <span class="returnvalue">gchar</span> * gnome_bg_get_filename (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-draw"></a><h3>gnome_bg_draw ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gnome_bg_draw (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">GdkPixbuf</span> *dest</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> is_root</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-create-surface"></a><h3>gnome_bg_create_surface ()</h3>
<pre class="programlisting"><a href="/gnome/usr/share/gtk-doc/html/cairo/cairo-cairo-surface-t.html#cairo-surface-t"><span class="returnvalue">cairo_surface_t</span></a> * gnome_bg_create_surface (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/gdk3-Windows.html#GdkWindow"><span class="type">GdkWindow</span></a> *window</code></em>,
<em class="parameter"><code><span class="type">int</span> width</code></em>,
<em class="parameter"><code><span class="type">int</span> height</code></em>,
<em class="parameter"><code><span class="type">gboolean</span> root</code></em>);</pre>
<p>
Create a surface that can be set as background for <em class="parameter"><code>window</code></em>. If <em class="parameter"><code>is_root</code></em> is
TRUE, the surface created will be created by a temporary X server connection
so that if someone calls XKillClient on it, it won't affect the application
who created it.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>bg</code></em> :</span></p></td>
<td>GnomeBG</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-get-image-size"></a><h3>gnome_bg_get_image_size ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> gnome_bg_get_image_size (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><a class="link" href="GnomeDesktopThumbnailFactory.html" title="GnomeDesktopThumbnailFactory"><span class="type">GnomeDesktopThumbnailFactory</span></a> *factory</code></em>,
<em class="parameter"><code><span class="type">int</span> best_width</code></em>,
<em class="parameter"><code><span class="type">int</span> best_height</code></em>,
<em class="parameter"><code><span class="type">int</span> *width</code></em>,
<em class="parameter"><code><span class="type">int</span> *height</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-create-thumbnail"></a><h3>gnome_bg_create_thumbnail ()</h3>
<pre class="programlisting"><span class="returnvalue">GdkPixbuf</span> * gnome_bg_create_thumbnail (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><a class="link" href="GnomeDesktopThumbnailFactory.html" title="GnomeDesktopThumbnailFactory"><span class="type">GnomeDesktopThumbnailFactory</span></a> *factory</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_width</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_height</code></em>);</pre>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a <span class="type">GdkPixbuf</span> showing the background as a thumbnail. <span class="annotation">[<a href="http://foldoc.org/transfer%20full"><span class="acronym">transfer full</span></a>]</span>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-is-dark"></a><h3>gnome_bg_is_dark ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> gnome_bg_is_dark (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_width</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_height</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-has-multiple-sizes"></a><h3>gnome_bg_has_multiple_sizes ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> gnome_bg_has_multiple_sizes (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-changes-with-time"></a><h3>gnome_bg_changes_with_time ()</h3>
<pre class="programlisting"><span class="returnvalue">gboolean</span> gnome_bg_changes_with_time (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>);</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-create-frame-thumbnail"></a><h3>gnome_bg_create_frame_thumbnail ()</h3>
<pre class="programlisting"><span class="returnvalue">GdkPixbuf</span> * gnome_bg_create_frame_thumbnail (<em class="parameter"><code><a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg</code></em>,
<em class="parameter"><code><a class="link" href="GnomeDesktopThumbnailFactory.html" title="GnomeDesktopThumbnailFactory"><span class="type">GnomeDesktopThumbnailFactory</span></a> *factory</code></em>,
<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_width</code></em>,
<em class="parameter"><code><span class="type">int</span> dest_height</code></em>,
<em class="parameter"><code><span class="type">int</span> frame_num</code></em>);</pre>
<p>
Creates a thumbnail for a certain frame, where 'frame' is somewhat
vaguely defined as 'suitable point to show while single-stepping
through the slideshow'.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the newly created thumbnail or
or NULL if frame_num is out of bounds. <span class="annotation">[<a href="http://foldoc.org/transfer%20full"><span class="acronym">transfer full</span></a>]</span>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-set-surface-as-root"></a><h3>gnome_bg_set_surface_as_root ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gnome_bg_set_surface_as_root (<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>,
<em class="parameter"><code><a href="/gnome/usr/share/gtk-doc/html/cairo/cairo-cairo-surface-t.html#cairo-surface-t"><span class="type">cairo_surface_t</span></a> *surface</code></em>);</pre>
<p>
Set the root pixmap, and properties pointing to it. We
do this atomically with a server grab to make sure that
we won't leak the pixmap if somebody else it setting
it at the same time. (This assumes that they follow the
same conventions we do). <em class="parameter"><code>surface</code></em> should come from a call
to <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-create-surface" title="gnome_bg_create_surface ()"><code class="function">gnome_bg_create_surface()</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>screen</code></em> :</span></p></td>
<td>the <a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> to change root background on</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>surface</code></em> :</span></p></td>
<td>the <a href="/gnome/usr/share/gtk-doc/html/cairo/cairo-cairo-surface-t.html#cairo-surface-t"><span class="type">cairo_surface_t</span></a> to set root background from.
Must be an xlib surface backing a pixmap.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-set-surface-as-root-with-crossfade"></a><h3>gnome_bg_set_surface_as_root_with_crossfade ()</h3>
<pre class="programlisting"><span class="returnvalue">GnomeBGCrossfade</span> * gnome_bg_set_surface_as_root_with_crossfade
(<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>,
<em class="parameter"><code><a href="/gnome/usr/share/gtk-doc/html/cairo/cairo-cairo-surface-t.html#cairo-surface-t"><span class="type">cairo_surface_t</span></a> *surface</code></em>);</pre>
<p>
Set the root pixmap, and properties pointing to it.
This function differs from <a class="link" href="gnome-desktop3-gnome-bg.html#gnome-bg-set-surface-as-root" title="gnome_bg_set_surface_as_root ()"><code class="function">gnome_bg_set_surface_as_root()</code></a>
in that it adds a subtle crossfade animation from the
current root pixmap to the new one.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>screen</code></em> :</span></p></td>
<td>the <a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> to change root background on</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>surface</code></em> :</span></p></td>
<td>the cairo xlib surface to set root background from</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a <span class="type">GnomeBGCrossfade</span> object. <span class="annotation">[<a href="http://foldoc.org/transfer%20full"><span class="acronym">transfer full</span></a>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-bg-get-surface-from-root"></a><h3>gnome_bg_get_surface_from_root ()</h3>
<pre class="programlisting"><a href="/gnome/usr/share/gtk-doc/html/cairo/cairo-cairo-surface-t.html#cairo-surface-t"><span class="returnvalue">cairo_surface_t</span></a> * gnome_bg_get_surface_from_root (<em class="parameter"><code><a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a> *screen</code></em>);</pre>
<p>
This function queries the _XROOTPMAP_ID property from
the root window associated with <em class="parameter"><code>screen</code></em> to determine
the current root window background pixmap and returns
a copy of it. If the _XROOTPMAP_ID is not set, then
a black surface is returned.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>screen</code></em> :</span></p></td>
<td>a <a href="http://library.gnome.org/devel/gdk/GdkScreen.html"><span class="type">GdkScreen</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a <a href="/gnome/usr/share/gtk-doc/html/cairo/cairo-cairo-surface-t.html#cairo-surface-t"><span class="type">cairo_surface_t</span></a> if successful or <a href="/gnome/usr/share/gtk-doc/html/liboil/liboil-liboiljunk.html#NULL--CAPS"><code class="literal">NULL</code></a>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GnomeBG-struct"></a><h3>GnomeBG</h3>
<pre class="programlisting">typedef struct _GnomeBG GnomeBG;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GnomeBGClass"></a><h3>GnomeBGClass</h3>
<pre class="programlisting">typedef struct _GnomeBGClass GnomeBGClass;</pre>
<p>
</p>
</div>
</div>
<div class="refsect1">
<a name="gnome-desktop3-gnome-bg.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GnomeBG-changed"></a><h3>The <code class="literal">"changed"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg,
<span class="type">gpointer</span> user_data) : <code class="literal">Run Last</code></pre>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>bg</code></em> :</span></p></td>
<td>the object which received the signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="GnomeBG-transitioned"></a><h3>The <code class="literal">"transitioned"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="gnome-desktop3-gnome-bg.html#GnomeBG"><span class="type">GnomeBG</span></a> *bg,
<span class="type">gpointer</span> user_data) : <code class="literal">Run Last</code></pre>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>bg</code></em> :</span></p></td>
<td>the object which received the signal.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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