mirror of
https://github.com/sigmasternchen/php-doc-en
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58d1ff5ba6
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@86727 c90b9560-bf6c-de11-be94-00142212c4b1
57 lines
2 KiB
XML
57 lines
2 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.4 $ -->
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<!-- splitted from ./en/functions/image.xml, last change in rev 1.36 -->
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<refentry id="function.imagealphablending">
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<refnamediv>
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<refname>imagealphablending</refname>
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<refpurpose>Set the blending mode for an image</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>int</type><methodname>imagealphablending</methodname>
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<methodparam><type>resource</type><parameter>image</parameter></methodparam>
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<methodparam><type>bool</type><parameter>blendmode</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>imagealphablending</function> allows for two different
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modes of drawing on truecolor images. In blending mode, the
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alpha channel component of the color supplied to all drawing function,
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such as <function>imagesetpixel</function> determines how much of the
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underlying color should be allowed to shine through. As a result, gd
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automatically blends the existing color at that point with the drawing color,
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and stores the result in the image. The resulting pixel is opaque. In
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non-blending mode, the drawing color is copied literally with its alpha channel
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information, replacing the destination pixel. Blending mode is not available
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when drawing on palette images.
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If <parameter>blendmode</parameter> is &true;, then blending mode is enabled, otherwise
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disabled.
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</para>
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<note>
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<para>
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This function was added in PHP 4.0.6 and requires GD 2.0.1
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</para>
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</note>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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