[NumLock]

Код:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs;

type
  TForm1 = class(TForm)
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure FormPaint(Sender: TObject);
    procedure FormResize(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    Metafile: TMetafile;
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
var
  MetafileCanvas: TMetafileCanvas;
begin
  Metafile:=TMetafile.Create;
  Metafile.Width:=1000;
  Metafile.Height:=1000;
  MetafileCanvas:=TMetafileCanvas.Create(Metafile, 0);
  MetafileCanvas.Brush.Color:=clCream;
  MetafileCanvas.Pen.Color:=clBlue;
  MetafileCanvas.Pen.Width:=2;
  MetafileCanvas.FillRect(Rect(0, 0, 1000, 1000));
  MetafileCanvas.Rectangle(10, 10, 990, 990);
  MetafileCanvas.Font.Name:='Tahoma';
  MetafileCanvas.Font.Size:=12;
  MetafileCanvas.TextOut(20, 20, 'MetafileCanvas');
  MetafileCanvas.Free;
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
  Metafile.Free;
end;

procedure TForm1.FormPaint(Sender: TObject);
begin
  Canvas.StretchDraw(Rect(0, 0, ClientWidth, ClientHeight), Metafile);
end;

procedure TForm1.FormResize(Sender: TObject);
begin
  Invalidate;
end;

end.