<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Sets image alpha channel</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="imagick.setimage.html">Imagick::setImage</a></div> <div class="next" style="text-align: right; float: right;"><a href="imagick.setimageartifact.html">Imagick::setImageArtifact</a></div> <div class="up"><a href="class.imagick.html">Imagick</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="imagick.setimagealphachannel" class="refentry"> <div class="refnamediv"> <h1 class="refname">Imagick::setImageAlphaChannel</h1> <p class="verinfo">(No version information available, might only be in SVN)</p><p class="refpurpose"><span class="refname">Imagick::setImageAlphaChannel</span> — <span class="dc-title">Sets image alpha channel</span></p> </div> <div class="refsect1 description" id="refsect1-imagick.setimagealphachannel-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><strong>Imagick::setImageAlphaChannel</strong></span> ( <span class="methodparam"><span class="type">int</span> <code class="parameter">$mode</code></span> )</div> <p class="para rdfs-comment"> Activate or deactivate image alpha channel. The <em><code class="parameter">mode</code></em> is one of the <strong><code>Imagick::ALPHACHANNEL_*</code></strong> constants. This method is available if Imagick has been compiled against ImageMagick version 6.3.8 or newer. </p> </div> <div class="refsect1 parameters" id="refsect1-imagick.setimagealphachannel-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">mode</code></em></span> <dd> <p class="para"> One of the <strong><code>Imagick::ALPHACHANNEL_*</code></strong> constants </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-imagick.setimagealphachannel-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <strong><code>TRUE</code></strong> on success. </p> </div> <div class="refsect1 errors" id="refsect1-imagick.setimagealphachannel-errors"> <h3 class="title">Errors/Exceptions</h3> <p class="para"> Throws ImagickException on error. </p> </div> <div class="refsect1 seealso" id="refsect1-imagick.setimagealphachannel-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="imagick.setimagematte.html" class="function" rel="rdfs-seeAlso">Imagick::setImageMatte()</a> - Sets the image matte channel</span></li> <li class="member"> <a href="imagick.constants.html#imagick.constants.alphachannel" class="link">Imagick Alpha Channel Constants</a></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="imagick.setimage.html">Imagick::setImage</a></div> <div class="next" style="text-align: right; float: right;"><a href="imagick.setimageartifact.html">Imagick::setImageArtifact</a></div> <div class="up"><a href="class.imagick.html">Imagick</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>