在一个TImage控件里画四条曲线

求助：在一个TImage控件里画四条曲线
在同一个image控件里画四条不同颜色的曲线，大家可有好的方法？请赐教，谢谢。

[解决办法]

C# code

procedure TForm1.Button1Click(Sender: TObject);var  graphic:TControlCanvas;begin  graphic := TControlCanvas.Create;  graphic.Control := Image1;  graphic.Pen.Color := clRed;  graphic.MoveTo(0,0);  graphic.LineTo(100,0);  graphic.Pen.Color := clBlue;  graphic.MoveTo(10,10);  graphic.LineTo(100,0);  graphic.Pen.Color := clYellow;  graphic.MoveTo(20,20);  graphic.LineTo(100,0);  graphic.Pen.Color := clGreen;  graphic.MoveTo(30,30);  graphic.LineTo(100,0);end;
[解决办法]
改变Pen颜色，用moveto，lineto就画吧