php-doc-en/reference/newt/functions/newt-refresh.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.newt-refresh" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>newt_refresh</refname>
  <refpurpose>Updates modified portions of the screen</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>void</type><methodname>newt_refresh</methodname>
   <void/>
  </methodsynopsis>
  <para>
   To increase performance, newt only updates the display when it needs to,
   not when the program tells it to write to the terminal. Applications can
   force newt to immediately update modified portions of the screen by calling
   this function.
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.void;
  </para>
 </refsect1>

</refentry>

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