, and 
the other a rectangle for the button; as shown in the below:
</p><img src="regions.png" width="128" height="96" alt="Pane Selector control regions" /><p class="caption">Pane Selector Control Regions</p><p>
Setting this up in code isn't too tricky as Windows provides lots of functionality for
combining regions together.  You simply need to combine a region which is the difference
between the outside and the inside of the border with the region for the button.  Here's
the code:
</p><pre>
Private Type R