title: Synchronized zooming of two TChart components
body: <p>I'm using two TChart components and would like to do synchronized zooming for them. I found that TChart has ZoomRect procedure for zooming into a desired rectangle on the chart but I haven't found any way to read the coordinates of this zoom rectangle from another chart.</p>
  
  <p>Here's some pseudo code for extra clarification:</p>
  
  <pre><code>MainChart.OnZoom := HandleZooming;
  
  ...
  
  procedure HandleZooming(Sender: TObject);
  var
    zoomRectangle: TRect;
  begin
    zoomRectangle := MainChart.?????;
    SecondaryChart.ZoomRect(zoomRectangle);
  end;
  </code></pre>
  
  <p>I'm using Delphi XE.</p>