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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Clutter Reference Manual: ClutterBrightnessContrastEffect</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
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<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
                  <a href="#ClutterBrightnessContrastEffect.description" class="shortcut">Description</a></span><span id="nav_hierarchy">  <span class="dim">|</span> 
                  <a href="#ClutterBrightnessContrastEffect.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_properties">  <span class="dim">|</span> 
                  <a href="#ClutterBrightnessContrastEffect.properties" class="shortcut">Properties</a></span>
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<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="ch06.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
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<div class="refentry">
<a name="ClutterBrightnessContrastEffect"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="ClutterBrightnessContrastEffect.top_of_page"></a>ClutterBrightnessContrastEffect</span></h2>
<p>ClutterBrightnessContrastEffect — Increase/decrease brightness and/or contrast of actor.</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="ClutterBrightnessContrastEffect.functions"></a><h2>Functions</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="ClutterEffect.html" title="ClutterEffect"><span class="returnvalue">ClutterEffect</span></a> *
</td>
<td class="function_name">
<a class="link" href="ClutterBrightnessContrastEffect.html#clutter-brightness-contrast-effect-new" title="clutter_brightness_contrast_effect_new ()">clutter_brightness_contrast_effect_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="ClutterBrightnessContrastEffect.html#clutter-brightness-contrast-effect-set-brightness" title="clutter_brightness_contrast_effect_set_brightness ()">clutter_brightness_contrast_effect_set_brightness</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="ClutterBrightnessContrastEffect.html#clutter-brightness-contrast-effect-set-brightness-full" title="clutter_brightness_contrast_effect_set_brightness_full ()">clutter_brightness_contrast_effect_set_brightness_full</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="ClutterBrightnessContrastEffect.html#clutter-brightness-contrast-effect-get-brightness" title="clutter_brightness_contrast_effect_get_brightness ()">clutter_brightness_contrast_effect_get_brightness</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="ClutterBrightnessContrastEffect.html#clutter-brightness-contrast-effect-set-contrast" title="clutter_brightness_contrast_effect_set_contrast ()">clutter_brightness_contrast_effect_set_contrast</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="ClutterBrightnessContrastEffect.html#clutter-brightness-contrast-effect-set-contrast-full" title="clutter_brightness_contrast_effect_set_contrast_full ()">clutter_brightness_contrast_effect_set_contrast_full</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="ClutterBrightnessContrastEffect.html#clutter-brightness-contrast-effect-get-contrast" title="clutter_brightness_contrast_effect_get_contrast ()">clutter_brightness_contrast_effect_get_contrast</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="ClutterBrightnessContrastEffect.properties"></a><h2>Properties</h2>
<div class="informaltable"><table border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type">
<a class="link" href="clutter-Colors.html#ClutterColor" title="ClutterColor"><span class="type">ClutterColor</span></a> *</td>
<td class="property_name"><a class="link" href="ClutterBrightnessContrastEffect.html#ClutterBrightnessContrastEffect--brightness" title="The “brightness” property">brightness</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a class="link" href="clutter-Colors.html#ClutterColor" title="ClutterColor"><span class="type">ClutterColor</span></a> *</td>
<td class="property_name"><a class="link" href="ClutterBrightnessContrastEffect.html#ClutterBrightnessContrastEffect--contrast" title="The “contrast” property">contrast</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="ClutterBrightnessContrastEffect.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody><tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="ClutterBrightnessContrastEffect.html#ClutterBrightnessContrastEffect-struct" title="ClutterBrightnessContrastEffect">ClutterBrightnessContrastEffect</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="ClutterBrightnessContrastEffect.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    GObject
    <span class="lineart">╰──</span> GInitiallyUnowned
        <span class="lineart">╰──</span> <a class="link" href="ClutterActorMeta.html" title="ClutterActorMeta">ClutterActorMeta</a>
            <span class="lineart">╰──</span> <a class="link" href="ClutterEffect.html" title="ClutterEffect">ClutterEffect</a>
                <span class="lineart">╰──</span> <a class="link" href="ClutterOffscreenEffect.html" title="ClutterOffscreenEffect">ClutterOffscreenEffect</a>
                    <span class="lineart">╰──</span> ClutterBrightnessContrastEffect
</pre>
</div>
<div class="refsect1">
<a name="ClutterBrightnessContrastEffect.description"></a><h2>Description</h2>
<p><a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a> is a sub-class of <a class="link" href="ClutterEffect.html" title="ClutterEffect"><span class="type">ClutterEffect</span></a> that
changes the overall brightness of a <a class="link" href="ClutterActor.html" title="ClutterActor"><span class="type">ClutterActor</span></a>.</p>
<p><a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a> is available since Clutter 1.10</p>
</div>
<div class="refsect1">
<a name="ClutterBrightnessContrastEffect.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="clutter-brightness-contrast-effect-new"></a><h3>clutter_brightness_contrast_effect_new ()</h3>
<pre class="programlisting"><a class="link" href="ClutterEffect.html" title="ClutterEffect"><span class="returnvalue">ClutterEffect</span></a> *
clutter_brightness_contrast_effect_new
                               (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Creates a new <a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a> to be used with
<a class="link" href="ClutterActor.html#clutter-actor-add-effect" title="clutter_actor_add_effect ()"><code class="function">clutter_actor_add_effect()</code></a></p>
<div class="refsect3">
<a name="id-1.5.7.6.8.2.5"></a><h4>Returns</h4>
<p> the newly created
<a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a> or <code class="literal">NULL</code>.  Use <code class="function">g_object_unref()</code> when
done. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
<p class="since">Since 1.10</p>
</div>
<hr>
<div class="refsect2">
<a name="clutter-brightness-contrast-effect-set-brightness"></a><h3>clutter_brightness_contrast_effect_set_brightness ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
clutter_brightness_contrast_effect_set_brightness
                               (<em class="parameter"><code><a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a> *effect</code></em>,
                                <em class="parameter"><code><span class="type">float</span> brightness</code></em>);</pre>
<p>The range of <em class="parameter"><code>brightness</code></em>
 is [-1.0, 1.0], where 0.0 designates no change;
a value below 0.0 indicates a decrease in brightness; and a value
above 0.0 indicates an increase of brightness.</p>
<div class="refsect3">
<a name="id-1.5.7.6.8.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>effect</p></td>
<td class="parameter_description"><p>a <a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>brightness</p></td>
<td class="parameter_description"><p>the brightness change for all three components (r, g, b)</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since 1.10</p>
</div>
<hr>
<div class="refsect2">
<a name="clutter-brightness-contrast-effect-set-brightness-full"></a><h3>clutter_brightness_contrast_effect_set_brightness_full ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
clutter_brightness_contrast_effect_set_brightness_full
                               (<em class="parameter"><code><a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a> *effect</code></em>,
                                <em class="parameter"><code><span class="type">float</span> red</code></em>,
                                <em class="parameter"><code><span class="type">float</span> green</code></em>,
                                <em class="parameter"><code><span class="type">float</span> blue</code></em>);</pre>
<p>The range for each component is [-1.0, 1.0] where 0.0 designates no change,
values below 0.0 mean a decrease in brightness, and values above indicate
an increase.</p>
<div class="refsect3">
<a name="id-1.5.7.6.8.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>effect</p></td>
<td class="parameter_description"><p>a <a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>red</p></td>
<td class="parameter_description"><p>red component of the change in brightness</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>green</p></td>
<td class="parameter_description"><p>green component of the change in brightness</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>blue</p></td>
<td class="parameter_description"><p>blue component of the change in brightness</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since 1.10</p>
</div>
<hr>
<div class="refsect2">
<a name="clutter-brightness-contrast-effect-get-brightness"></a><h3>clutter_brightness_contrast_effect_get_brightness ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
clutter_brightness_contrast_effect_get_brightness
                               (<em class="parameter"><code><a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a> *effect</code></em>,
                                <em class="parameter"><code><span class="type">float</span> *red</code></em>,
                                <em class="parameter"><code><span class="type">float</span> *green</code></em>,
                                <em class="parameter"><code><span class="type">float</span> *blue</code></em>);</pre>
<p>Retrieves the change in brightness used by <em class="parameter"><code>effect</code></em>
.</p>
<div class="refsect3">
<a name="id-1.5.7.6.8.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>effect</p></td>
<td class="parameter_description"><p>a <a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>red</p></td>
<td class="parameter_description"><p> return location for red component of the
change in brightness. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>green</p></td>
<td class="parameter_description"><p> return location for green component of the
change in brightness. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>blue</p></td>
<td class="parameter_description"><p> return location for blue component of the
change in brightness. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since 1.10</p>
</div>
<hr>
<div class="refsect2">
<a name="clutter-brightness-contrast-effect-set-contrast"></a><h3>clutter_brightness_contrast_effect_set_contrast ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
clutter_brightness_contrast_effect_set_contrast
                               (<em class="parameter"><code><a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a> *effect</code></em>,
                                <em class="parameter"><code><span class="type">float</span> contrast</code></em>);</pre>
<p>The range for <em class="parameter"><code>contrast</code></em>
 is [-1.0, 1.0], where 0.0 designates no change;
a value below 0.0 indicates a decrease in contrast; and a value above
0.0 indicates an increase.</p>
<div class="refsect3">
<a name="id-1.5.7.6.8.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>effect</p></td>
<td class="parameter_description"><p>a <a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>contrast</p></td>
<td class="parameter_description"><p>contrast change for all three channels</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since 1.10</p>
</div>
<hr>
<div class="refsect2">
<a name="clutter-brightness-contrast-effect-set-contrast-full"></a><h3>clutter_brightness_contrast_effect_set_contrast_full ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
clutter_brightness_contrast_effect_set_contrast_full
                               (<em class="parameter"><code><a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a> *effect</code></em>,
                                <em class="parameter"><code><span class="type">float</span> red</code></em>,
                                <em class="parameter"><code><span class="type">float</span> green</code></em>,
                                <em class="parameter"><code><span class="type">float</span> blue</code></em>);</pre>
<p>The range for each component is [-1.0, 1.0] where 0.0 designates no change,
values below 0.0 mean a decrease in contrast, and values above indicate
an increase.</p>
<div class="refsect3">
<a name="id-1.5.7.6.8.7.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>effect</p></td>
<td class="parameter_description"><p>a <a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>red</p></td>
<td class="parameter_description"><p>red component of the change in contrast</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>green</p></td>
<td class="parameter_description"><p>green component of the change in contrast</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>blue</p></td>
<td class="parameter_description"><p>blue component of the change in contrast</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since 1.10</p>
</div>
<hr>
<div class="refsect2">
<a name="clutter-brightness-contrast-effect-get-contrast"></a><h3>clutter_brightness_contrast_effect_get_contrast ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
clutter_brightness_contrast_effect_get_contrast
                               (<em class="parameter"><code><a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a> *effect</code></em>,
                                <em class="parameter"><code><span class="type">float</span> *red</code></em>,
                                <em class="parameter"><code><span class="type">float</span> *green</code></em>,
                                <em class="parameter"><code><span class="type">float</span> *blue</code></em>);</pre>
<p>Retrieves the contrast value used by <em class="parameter"><code>effect</code></em>
.</p>
<div class="refsect3">
<a name="id-1.5.7.6.8.8.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>effect</p></td>
<td class="parameter_description"><p>a <a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>red</p></td>
<td class="parameter_description"><p> return location for red component of the
change in contrast. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>green</p></td>
<td class="parameter_description"><p> return location for green component of the
change in contrast. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>blue</p></td>
<td class="parameter_description"><p> return location for blue component of the
change in contrast. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter for returning results. Default is transfer full."><span class="acronym">out</span></acronym>][<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since 1.10</p>
</div>
</div>
<div class="refsect1">
<a name="ClutterBrightnessContrastEffect.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="ClutterBrightnessContrastEffect-struct"></a><h3>ClutterBrightnessContrastEffect</h3>
<pre class="programlisting">typedef struct _ClutterBrightnessContrastEffect ClutterBrightnessContrastEffect;</pre>
<p><a class="link" href="ClutterBrightnessContrastEffect.html" title="ClutterBrightnessContrastEffect"><span class="type">ClutterBrightnessContrastEffect</span></a> is an opaque structure
whose members cannot be directly accessed</p>
<p class="since">Since 1.10</p>
</div>
</div>
<div class="refsect1">
<a name="ClutterBrightnessContrastEffect.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="ClutterBrightnessContrastEffect--brightness"></a><h3>The <code class="literal">“brightness”</code> property</h3>
<pre class="programlisting">  “brightness”               <a class="link" href="clutter-Colors.html#ClutterColor" title="ClutterColor"><span class="type">ClutterColor</span></a> *</pre>
<p>The brightness change to apply to the effect.</p>
<p>This property uses a <a class="link" href="clutter-Colors.html#ClutterColor" title="ClutterColor"><span class="type">ClutterColor</span></a> to represent the changes to each
color channel. The range is [ 0, 255 ], with 127 as the value used
to indicate no change; values smaller than 127 indicate a decrease
in brightness, and values larger than 127 indicate an increase in
brightness.</p>
<p>Flags: Read / Write</p>
<p class="since">Since 1.10</p>
</div>
<hr>
<div class="refsect2">
<a name="ClutterBrightnessContrastEffect--contrast"></a><h3>The <code class="literal">“contrast”</code> property</h3>
<pre class="programlisting">  “contrast”                 <a class="link" href="clutter-Colors.html#ClutterColor" title="ClutterColor"><span class="type">ClutterColor</span></a> *</pre>
<p>The contrast change to apply to the effect.</p>
<p>This property uses a <a class="link" href="clutter-Colors.html#ClutterColor" title="ClutterColor"><span class="type">ClutterColor</span></a> to represent the changes to each
color channel. The range is [ 0, 255 ], with 127 as the value used
to indicate no change; values smaller than 127 indicate a decrease
in contrast, and values larger than 127 indicate an increase in
contrast.</p>
<p>Flags: Read / Write</p>
<p class="since">Since 1.10</p>
</div>
</div>
<div class="refsect1">
<a name="ClutterBrightnessContrastEffect.see-also"></a><h2>See Also</h2>
<p><a class="link" href="ClutterEffect.html" title="ClutterEffect"><span class="type">ClutterEffect</span></a>, <a class="link" href="ClutterOffscreenEffect.html" title="ClutterOffscreenEffect"><span class="type">ClutterOffscreenEffect</span></a></p>
</div>
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