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Occurs right before the  Header is drawn. Use the OnDrawingHeader event to paint behind the Header before it is drawn over top. By setting the DoDraw parameter to False, you can also prevent the Header from drawing. The Canvas parameter contains the canvas where the Header will be drawn, and the ARect parameter specifies where on the canvas the Header will be drawn.

Namespace: RSChartPanel

expandingSyntax

Delphi

public
  property OnDrawingHeader: TRSChartDrawingEvent read GetOnDrawingHeader write SetOnDrawingHeader;
 

Value

Type: TRSChartDrawingEvent

expandingExamples

The following code uses the OnDrawingGradient event handler to prevent the gradient from being drawn. The same principle applies here:

Delphi

procedure TForm1.RSChartPanel1DrawingGradient(Sender: TObject;
   const Canvas: TCanvas; ARect: TRect; var DoDraw: Boolean);
 begin
      DoDraw := False;
 end;

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RiverSoftAVG Charting Component Suite (RCCS) © 2005-2015, Thomas G. Grubb