imagefontheight.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.imagefontheight" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>imagefontheight</refname>
  <refpurpose>Get font height</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>imagefontheight</methodname>
   <methodparam><type>int</type><parameter>font</parameter></methodparam>
  </methodsynopsis>
  <para>
   Returns the pixel height of a character in the specified font.
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    &gd.font.description;
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns the pixel height of the font.
  </para>
 </refsect1>
 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title>Using <function>imagefontheight</function> on built-in fonts</title>
    <programlisting role="php">
<![CDATA[
<?php
echo 'Font height: ' . imagefontheight(4);
?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
Font height: 16
]]>
    </screen>
   </example>
   <example>
    <title>Using <function>imagefontheight</function> together with <function>imageloadfont</function></title>
    <programlisting role="php">
<![CDATA[
<?php
// Load a .gdf font
$font = imageloadfont('anonymous.gdf');

echo 'Font height: ' . imagefontheight($font);
?>
]]>
    </programlisting>
    &example.outputs.similar;
    <screen>
<![CDATA[
Font height: 43
]]>
    </screen>
   </example>
  </para>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>imagefontwidth</function></member>
    <member><function>imageloadfont</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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