<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.imagecolorresolve" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>imagecolorresolve</refname>
  <refpurpose>Get the index of the specified color or its closest possible alternative</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>imagecolorresolve</methodname>
   <methodparam><type>resource</type><parameter>image</parameter></methodparam>
   <methodparam><type>int</type><parameter>red</parameter></methodparam>
   <methodparam><type>int</type><parameter>green</parameter></methodparam>
   <methodparam><type>int</type><parameter>blue</parameter></methodparam>
  </methodsynopsis>
  <para>
   This function is guaranteed to return a color index for a
   requested color, either the exact color or the closest possible
   alternative.
  </para>
  <para>&gd.image.colors;</para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    &gd.image.description;
    <varlistentry>
     <term><parameter>red</parameter></term>
     <listitem>
      <para>&gd.value.red;</para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>green</parameter></term>
     <listitem>
      <para>&gd.value.green;</para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>blue</parameter></term>
     <listitem>
      <para>&gd.value.blue;</para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns a color index.
  </para>
 </refsect1>
 <refsect1 role="examples">
  &reftitle.examples;
  <example>
   <title>Using <function>imagecoloresolve</function> to get colors from an image</title>
   <programlisting role="php">
<![CDATA[
<?php
// Load an image
$im = imagecreatefromgif('phplogo.gif');

// Get closest colors from the image
$colors = array();
$colors[] = imagecolorresolve($im, 255, 255, 255);
$colors[] = imagecolorresolve($im, 0, 0, 200);

// Output
print_r($colors);

imagedestroy($im);
?>
]]>  
   </programlisting>
   &example.outputs.similar;
   <screen>
<![CDATA[
Array
(
    [0] => 89
    [1] => 85
)
]]>
   </screen>
  </example>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>imagecolorclosest</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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