Subversion Repositories svnkaklik

unit Unit1;

interface

uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, StdCtrls, ExtCtrls, ToolWin, ComCtrls;

type

  TForm1 = class(TForm)

    PaintBox1: TPaintBox;

    Button1: TButton;

    Button2: TButton;

    ScrollBar1: TScrollBar;

    procedure Button1Click(Sender: TObject);

    procedure Button2Click(Sender: TObject);

    procedure ScrollBar1Change(Sender: TObject);

  private

    { Private declarations }

  public

    { Public declarations }

  end;

var

  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);

begin

    with PaintBox1 do begin

    Canvas.Brush.Color := clRed;

    Canvas.Brush.Style := bsDiagCross;

    Canvas.Ellipse(0, 0, PaintBox1.Width, PaintBox1.Height);

  end;

end;

procedure TForm1.Button2Click(Sender: TObject);

var Y: Integer;

begin

  { first call FillRect to paint the surface of the form.

  this removes any previously drawn lines (and anything else!)

  PaintBox1.Canvas.FillRect(ClientRect);}

  PaintBox1.Canvas.MoveTo(0, 0);

  PaintBox1.Canvas.LineTo(PaintBox1.Width,PaintBox1.Height);

end;

procedure TForm1.ScrollBar1Change(Sender: TObject);

begin

  PaintBox1.Canvas.MoveTo(0,ScrollBar1.Position);

  PaintBox1.Canvas.LineTo(256,ScrollBar1.Position);

end;

end.