unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ExtCtrls;
type
TForm1 = class(TForm)
btn1: TButton;
btn2: TButton;
tmr1: TTimer;
procedure btn2Click(Sender: TObject);
procedure btn1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
i,j:Integer;
implementation
{$R *.dfm}
procedure TForm1.btn1Click(Sender: TObject);
begin
Canvas.Rectangle(1,1,700,700); //создание формы
Canvas.Ellipse(2,70,20,50);
Canvas.MoveTo(1,70);
Canvas.LineTo(50,70);
Canvas.MoveTo(50,90);
Canvas.LineTo(50,70);
Canvas.MoveTo(50,90);
Canvas.LineTo(90,90);
Canvas.MoveTo(90,90);
Canvas.LineTo(90,70);
Canvas.MoveTo(90,70);
Canvas.LineTo(200,70);
Canvas.MoveTo(200,50);
Canvas.LineTo(200,70);
Canvas.MoveTo(200,50);
Canvas.LineTo(250,50);
Canvas.MoveTo(250,50);
Canvas.LineTo(250,70);
Canvas.MoveTo(250,70);
Canvas.LineTo(350,70);
end;
procedure TForm1.btn2Click(Sender: TObject);
begin
PatBlt(Form1.Canvas.Handle, 0, 0,
Form1.ClientWidth, Form1.ClientHeight, WHITENESS);// очистка экрана
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
end;
end.