File: imagecreatefromgd2part.xml

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.11 $ -->
<refentry xml:id='function.imagecreatefromgd2part' xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>imagecreatefromgd2part</refname>
  <refpurpose>Create a new image from a given part of GD2 file or URL</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>resource</type><methodname>imagecreatefromgd2part</methodname>
   <methodparam><type>string</type><parameter>filename</parameter></methodparam>
   <methodparam><type>int</type><parameter>srcX</parameter></methodparam>
   <methodparam><type>int</type><parameter>srcY</parameter></methodparam>
   <methodparam><type>int</type><parameter>width</parameter></methodparam>
   <methodparam><type>int</type><parameter>height</parameter></methodparam>
  </methodsynopsis>
  <para>
   Create a new image from a given part of GD2 file or URL.
  </para>
  &tip.fopen-wrapper;
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>filename</parameter></term>
     <listitem>
      <para>
       Path to the GD2 image.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>srcX</parameter></term>
     <listitem>
      <para>
       x-coordinate of source point.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>srcY</parameter></term>
     <listitem>
      <para>
       y-coordinate of source point.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>width</parameter></term>
     <listitem>
      <para>
       Source width.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>height</parameter></term>
     <listitem>
      <para>
       Source height.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns an image resource identifier on success, &false; on errors.
  </para>
 </refsect1>
 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>imagecreatefromgd2part</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
// For this example we need the image size before
// we create the image instance
$image = getimagesize('./test.gd2');

// Create the image instance now we got the image 
// sizes
$im = imagecreatefromgd2part('./test.gd2', 4, 4, ($image[0] / 2) - 6, ($image[1] / 2) - 6);

// Do an image operation, in this case we emboss the 
// image if PHP5+
if(function_exists('imagefilter'))
{
    imagefilter($im, IMG_FILTER_EMBOSS);
}

// Save optimized image
imagegd2($im, './test_emboss.gd2');
imagedestroy($im);
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>
 <refsect1 role="notes">
  &reftitle.notes;
  &note.gd.2;
  &warn.no-win32-fopen-wrapper;
 </refsect1>
</refentry>

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