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procedure TForm1.moveToCenter; begin Image1.Canvas.MoveTo(Image1.Width div 2, Image1.Height div 2); end;
procedure TForm1.kreis(radius: Integer);
begin
with Image1.Canvas do
Ellipse(PenPos.X - radius, PenPos.Y - radius,
PenPos.X + radius, PenPos.Y + radius);
end;
procedure TForm1.lineToDot(x,y: Integer); begin Image1.Canvas.LineTo(x,y); kreis(4*Image1.Canvas.Pen.Width); end;
procedure TForm1.Image1MouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer); begin lineToDot(X,Y); end; procedure TForm1.FormCreate(Sender: TObject); begin moveToCenter; end;