TChartSeries.OnDblClick
TChartSeries
property OnDblClick: TSeriesClick;
Unit
TeEngine
Description
An OnDblClick event occurs whenever the user double clicks onto a Chart. The Sender parameter specifies the Chart component that originated the event.
You must cast the Sender parameter to TChart or TDBChart class to use its properties and methods:
(Sender as TChart).Color := clYellow ;
To retrieve if user double clicked onto a Series point, you can use this code:
procedure TForm1.Chart1DblClick(Sender: TObject);
var tmp : Integer;
begin
tmp := BarSeries1.GetCursorValueIndex;
if tmp<>-1 then ...
end;