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| unit umain;
interface
uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls;
type TForm1 = class(TForm) Image1: TImage; Button1: TButton; procedure Button1Click(Sender: TObject); private public end;
var Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject); begin with Image1.Canvas do begin Rectangle(20, 20, Image1.Width-20, Image1.Height-20); Ellipse((Image1.Width div 2)+20, 20, Image1.Width-20, (Image1.Height div 2)-20); MoveTo(20, 20); while (PenPos.X < Image1.Width-20) and (PenPos.Y < Image1.Height-20) do begin LineTo(PenPos.X+10, PenPos.Y); LineTo(PenPos.X, PenPos.Y+10); end; end; end;
end. |