iv class="ddoc_throws">
  <h4>Throws</h4>
  <p class="para">
    If it fails to find any programs or libraries to make a <code class="code">message</code> box with.
  </p>
</div>

</section>

</div>

</li><li class="ddoc_member">
  <div class="ddoc_member_header">
  <div class="ddoc_header_anchor">
  <a href="#MessageBox.onError" id="MessageBox.onError"><code class="code">onError</code></a>
</div>
</div><div class="ddoc_decl">
  <section class="section">
    <div class="declaration">
    