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How to disable zooming by dlb click?

Posted: Sat Jan 06, 2007 6:03 am
by 9038118
There are two ways to zoom on a Tchart: (1) Click and drag a zoom box, and (2) double click and size the zoom box. I want to disable the 2nd method, but keep the 1st method intact. How do I do this?


Posted: Mon Jan 08, 2007 8:41 am
by narcis
Hi Matt,

Zooming rectangle is displayed only if click + drag is used and if distance between start and end (mouse) position is greater than specified minimal zooming tolerance. It may also help adding tChart.CancelMouse := True; in onDoubleClick event implementation. Something like this:

Code: Select all

procedure TForm1.Chart1DblClick(Sender: TObject); 
  ShowMessage('DblClick event fired');
  Chart1.CancelMouse := True;
If the problem persists please tell us the exact steps we should follow to reproduce the issue here.