button called <TT>button1</TT> and
add a signal handler for the <TT>clicked</TT> signal, the XML produced
by Glade will look like this (<TT>HelloWorld.ui</TT>):
</P>

<PRE>
&lt;?xml version="1.0"?&gt;
&lt;interface&gt;
  &lt;requires lib="gtk+" version="2.16"/&gt;
  &lt;!-- interface-naming-policy project-wide --&gt;
  &lt;object class="GtkWindow" id="mainWindow"&gt;
    &lt;property name="title" translatable="yes"&gt;Hello World&lt;/property&gt;
    &lt;child&gt;
      &lt;object class="GtkBut