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Bug 302 - [TV52015765] Code below doesn't render custom drawing in GDI+unless Pen.Mode:=pmNo...
Summary: [TV52015765] Code below doesn't render custom drawing in GDI+unless Pen.Mode:...
Status: CONFIRMED
Alias: None
Product: VCL TeeChart
Classification: Unclassified
Component: Other Components (show other bugs)
Version: unspecified
Hardware: All All
: Normal major
Target Milestone: ---
Assignee: Steema Issue Manager
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-09-30 14:48 EDT by narcís calvet
Modified: 2013-11-20 10:37 EST (History)
0 users

See Also:
Chart Series: ---
Delphi / C++ Builder RAD IDE Version:

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Description narcís calvet 2013-11-20 10:37:20 EST 
Code below doesn't render custom drawing in GDI+unless Pen.Mode:=pmNotXor. This works fine in GDI.
uses Series, TeeGDIPlus;

procedure TForm1.FormCreate(Sender: TObject);
begin
 X0:=-1;
 Y0:=-1;

 Chart1.AddSeries(TLineSeries.Create(Self)).FillSampleValues;

 Chart1.Zoom.Allow:=false;
 Chart1.Canvas:=TGDIPlusCanvas.Create;
end;

procedure TForm1.Chart1MouseDown(Sender: TObject; Button: TMouseButton;
 Shift: TShiftState; X, Y: Integer);
begin
 X0:=X;
 Y0:=Y;
end;

procedure TForm1.Chart1MouseMove(Sender: TObject; Shift: TShiftState; X,
 Y: Integer);
begin
 if (X0 <> -1) and (Y0 <> -1) then
 begin
 Chart1.Canvas.Pen.Color:=clRed;
 //Chart1.Canvas.Pen.Mode:=pmNotXor;
 Chart1.Canvas.Rectangle(X0, Y0, X, Y);
 Chart1.Repaint;
 end;
end;

procedure TForm1.Chart1MouseUp(Sender: TObject; Button: TMouseButton;
 Shift: TShiftState; X, Y: Integer);
begin
 X0:=-1;
 Y0:=-1;
 Chart1.Repaint;
end; [created:2011-09-30T13:48:12.000+01:00 reported by:narcis@steema.com reported in version:2011.03.30407 (TeeChart VCL)]