mirror of
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156 lines
4.0 KiB
XML
156 lines
4.0 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: 593ea510e853ff034e03f78a4be0daa41661c9d4 Maintainer: yannick Status: ready -->
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<!-- Reviewed: yes -->
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<refentry xml:id="function.imagecolorresolvealpha" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>imagecolorresolvealpha</refname>
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<refpurpose>
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Retourne un index de couleur ou son alternative la plus proche,
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y compris le canal alpha
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</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>int</type><methodname>imagecolorresolvealpha</methodname>
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<methodparam><type>GdImage</type><parameter>image</parameter></methodparam>
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<methodparam><type>int</type><parameter>red</parameter></methodparam>
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<methodparam><type>int</type><parameter>green</parameter></methodparam>
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<methodparam><type>int</type><parameter>blue</parameter></methodparam>
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<methodparam><type>int</type><parameter>alpha</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>imagecolorresolvealpha</function> retourne toujours
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un index de couleur, disponible dans la palette
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de l'image <parameter>image</parameter> : soit c'est la couleur
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exacte, soit c'est la meilleure approximation.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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&gd.image.description;
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<varlistentry>
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<term><parameter>red</parameter></term>
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<listitem>
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<para>&gd.value.red;</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>green</parameter></term>
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<listitem>
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<para>&gd.value.green;</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>blue</parameter></term>
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<listitem>
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<para>&gd.value.blue;</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>alpha</parameter></term>
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<listitem>
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<para>
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Une valeur comprise entre <literal>0</literal> et <literal>127</literal>.
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<literal>0</literal> indique une opacité complète tandis que
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<literal>127</literal> indique une transparence complète.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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Les paramètres sur les couleurs sont des entiers entre 0 et 255 ou
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des hexadécimaux compris entre 0x00 et 0xFF.
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Retourne un index de couleur.
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</para>
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</refsect1>
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<refsect1 role="changelog">
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&reftitle.changelog;
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<informaltable>
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<tgroup cols="2">
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<thead>
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<row>
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<entry>&Version;</entry>
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<entry>&Description;</entry>
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</row>
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</thead>
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<tbody>
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&gd.changelog.image-param;
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</tbody>
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</tgroup>
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</informaltable>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<example>
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<title>Exemple avec <function>imagecoloresolve</function>
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pour récupérer les couleurs d'une image</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// Chargement de l'image
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$im = imagecreatefromgif('phplogo.gif');
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// Récupération des couleurs les plus proches de l'image
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$colors = array();
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$colors[] = imagecolorresolvealpha($im, 255, 255, 255, 0);
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$colors[] = imagecolorresolvealpha($im, 0, 0, 200, 127);
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// Affichage
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print_r($colors);
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imagedestroy($im);
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?>
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]]>
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</programlisting>
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&example.outputs.similar;
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<screen>
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<![CDATA[
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Array
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(
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[0] => 89
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[1] => 85
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)
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]]>
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</screen>
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</example>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<simplelist>
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<member><function>imagecolorclosestalpha</function></member>
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</simplelist>
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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:"~/.phpdoc/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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