怎么把Tpaintbox里的图象弄到Timage里，Timage的图象怎么弄到Tpaintbox里？(100分)

怎么把Tpaintbox里的图象弄到Timage里，Timage的图象怎么弄到Tpaintbox里？

不是都有canvas吗？
canvas.copyrect

参数呢？
能帮我举个例子吗？

cancas.draw(0,0,Image.Picture.Graphics);

例子看这里：
http://www.delphibbs.com/delphibbs/dispq.asp?lid=1895973

unit Unit1;

interface

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

type
TForm1 = class(TForm)
Image1: TImage;
Button1: TButton;
PaintBox1: TPaintBox;
Image2: TImage;
Button2: TButton;
procedure Button1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure Button2Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);

begin

bitblt(Self.PaintBox1.Canvas.Handle, 0, 0, Image1.Width, image1.Height,
Image1.Canvas.Handle, 0, 0, srccopy);
button2.Enabled := true;

end;

procedure TForm1.FormCreate(Sender: TObject);
begin
Self.PaintBox1.Width := Image1.Width;
Self.PaintBox1.Height := Image1.Height;
Image2.Width := Image1.Width;
Image2.Height := Image1.Height;
button2.Enabled := false;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
bitblt(Image2.Canvas.Handle, 0, 0, Image2.Width, image2.Height,
Self.PaintBox1.Canvas.Handle, 0, 0, srccopy);

end;

end.

多人接受答案了。