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<a href="#clutter-Cairo-integration.description" class="shortcut">Description</a></span>
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<h2><span class="refentrytitle"><a name="clutter-Cairo-integration.top_of_page"></a>Cairo integration</span></h2>
<p>Cairo integration — Functions for interoperating with Cairo</p>
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<div class="refsect1">
<a name="clutter-Cairo-integration.functions"></a><h2>Functions</h2>
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<col class="functions_name">
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<td class="function_type">
<span class="returnvalue">void</span>
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<a class="link" href="clutter-Cairo-integration.html#clutter-cairo-clear" title="clutter_cairo_clear ()">clutter_cairo_clear</a> <span class="c_punctuation">()</span>
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<td class="function_type">
<span class="returnvalue">void</span>
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<td class="function_name">
<a class="link" href="clutter-Cairo-integration.html#clutter-cairo-set-source-color" title="clutter_cairo_set_source_color ()">clutter_cairo_set_source_color</a> <span class="c_punctuation">()</span>
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<div class="refsect1">
<a name="clutter-Cairo-integration.other"></a><h2>Types and Values</h2>
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<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="clutter-Cairo-integration.html#CLUTTER-CAIRO-FORMAT-ARGB32:CAPS" title="CLUTTER_CAIRO_FORMAT_ARGB32">CLUTTER_CAIRO_FORMAT_ARGB32</a></td>
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<div class="refsect1">
<a name="clutter-Cairo-integration.description"></a><h2>Description</h2>
<p>Clutter provides some utility functions for using Cairo.</p>
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<div class="refsect1">
<a name="clutter-Cairo-integration.functions_details"></a><h2>Functions</h2>
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<a name="clutter-cairo-clear"></a><h3>clutter_cairo_clear ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
clutter_cairo_clear (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/cairo/cairo-cairo-t.html#cairo-t"><span class="type">cairo_t</span></a> *cr</code></em>);</pre>
<p>Utility function to clear a Cairo context.</p>
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<a name="clutter-cairo-clear.parameters"></a><h4>Parameters</h4>
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<td class="parameter_name"><p>cr</p></td>
<td class="parameter_description"><p>a Cairo context</p></td>
<td class="parameter_annotations"> </td>
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<p class="since">Since: <a class="link" href="ix13.html#api-index-1.12">1.12</a></p>
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<div class="refsect2">
<a name="clutter-cairo-set-source-color"></a><h3>clutter_cairo_set_source_color ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
clutter_cairo_set_source_color (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/cairo/cairo-cairo-t.html#cairo-t"><span class="type">cairo_t</span></a> *cr</code></em>,
<em class="parameter"><code>const <a class="link" href="clutter-Colors.html#ClutterColor"><span class="type">ClutterColor</span></a> *color</code></em>);</pre>
<p>Utility function for setting the source color of <em class="parameter"><code>cr</code></em>
using
a <a class="link" href="clutter-Colors.html#ClutterColor"><span class="type">ClutterColor</span></a>. This function is the equivalent of:</p>
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<td class="listing_lines" align="right"><pre>1
2
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<td class="listing_code"><pre class="programlisting"><span class="function"><a href="/usr/share/gtk-doc/html/cairo/cairo-cairo-t.html#cairo-set-source-rgba">cairo_set_source_rgba</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">cr</span><span class="symbol">,</span>
<span class="normal"> color</span><span class="symbol">-></span><span class="normal">red </span><span class="symbol">/</span><span class="normal"> </span><span class="number">255.0</span><span class="symbol">,</span>
<span class="normal"> color</span><span class="symbol">-></span><span class="normal">green </span><span class="symbol">/</span><span class="normal"> </span><span class="number">255.0</span><span class="symbol">,</span>
<span class="normal"> color</span><span class="symbol">-></span><span class="normal">blue </span><span class="symbol">/</span><span class="normal"> </span><span class="number">255.0</span><span class="symbol">,</span>
<span class="normal"> color</span><span class="symbol">-></span><span class="normal">alpha </span><span class="symbol">/</span><span class="normal"> </span><span class="number">255.0</span><span class="symbol">);</span></pre></td>
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<p></p>
<div class="refsect3">
<a name="clutter-cairo-set-source-color.parameters"></a><h4>Parameters</h4>
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<td class="parameter_name"><p>cr</p></td>
<td class="parameter_description"><p>a Cairo context</p></td>
<td class="parameter_annotations"> </td>
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<td class="parameter_name"><p>color</p></td>
<td class="parameter_description"><p>a <a class="link" href="clutter-Colors.html#ClutterColor"><span class="type">ClutterColor</span></a></p></td>
<td class="parameter_annotations"> </td>
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<p class="since">Since: <a class="link" href="ix07.html#api-index-1.0">1.0</a></p>
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<div class="refsect1">
<a name="clutter-Cairo-integration.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="CLUTTER-CAIRO-FORMAT-ARGB32:CAPS"></a><h3>CLUTTER_CAIRO_FORMAT_ARGB32</h3>
<pre class="programlisting">#define CLUTTER_CAIRO_FORMAT_ARGB32 (COGL_PIXEL_FORMAT_BGRA_8888_PRE)
</pre>
<p>The <span class="type">CoglPixelFormat</span> to be used when uploading image data from
and to a Cairo image surface using <code class="literal">CAIRO_FORMAT_ARGB32</code> and
<code class="literal">CAIRO_FORMAT_RGB24</code> as <a href="/usr/share/gtk-doc/html/cairo/cairo-Image-Surfaces.html#cairo-format-t"><span class="type">cairo_format_t</span></a>.</p>
<p class="since">Since: <a class="link" href="ix11.html#api-index-1.8">1.8</a></p>
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