title: winform mschart hittest not finding legend
body: <p>I have a charting application that has an overlay function which reassigns the 'from' chart series to the 'to' chart  using this code :</p>
  
  <pre><code>chTo.Series.Add(chFrom.Series[s]); //Reassign series to new chart   
  chTo.Legends.Add(chFrom.Legends[s]); //Reassign legend to new chart
  </code></pre>
  
  <p>Works great. <br> However, I am trying to implement tooltips for the legends and am running into an issue where  only the first legend in the chart will show tooltips.  When I do a hittest only the first legend is recognized.  All subsequent legends, while visible on the chart, aren't 'seen' to the hittest method.  I'm thinking this is why the tooltips aren't showing as there is no object to trigger the mouseover event for the tooltip.</p>
  
  <p>I have been unable  to find a way to 'expand' the legend area (as detected by the hittest method) to make this work.    </p>
  
  <p>Does anyone have any ideas?  Thanks!</p>