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.