[NumLock]

http://data.cod.ru/76358

Код:

unit Unit1;

interface

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

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

var
  Form1: TForm1;

implementation

uses Clas;

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
  ACanvas:=Canvas;
end;

procedure TForm1.FormPaint(Sender: TObject);
begin
  ClasFormPaint;
end;

end.

Код:

unit Clas;

interface

uses
  Classes, Graphics;

var
  ACanvas: TCanvas;

procedure ClasFormPaint;

implementation

procedure ClasFormPaint;
begin
  ACanvas.Brush.Color:=clYellow;
  ACanvas.FillRect(Rect(10, 10, 100, 100));
end;

end.