<pyvcp>
   <labelframe text="Send to RS-232">
       <font>("Helvetica",16)</font>
       <vbox>
         <spinbox>
            <halpin>"my-spinbox"</halpin>
            <min_>-12</min_>
            <max_>33</max_>
            <initval>0</initval>
            <resolution>0.1</resolution>
            <format>"2.3f"</format>
            <font>("Arial",30)</font>
         </spinbox>
         <button>
            <halpin>"send"</halpin>
            <text>"Send"</text>
         </button>
       </vbox>
   </labelframe>
</pyvcp>
