画出来的图形如何响应事件？
//pas
unit Unit1;

interface

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

type
TForm1 = class(TForm)
Image01: TImage;
ValueListEditor1: TValueListEditor;
Edit1: TEdit;
procedure ValueListEditor1DrawCell(Sender: TObject; ACol,
ARow: Integer; Rect: TRect; State: TGridDrawState);
procedure Image01Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.ValueListEditor1DrawCell(Sender: TObject; ACol,
ARow: Integer; Rect: TRect; State: TGridDrawState);
begin
if ACol=0 then ValueListEditor1.Canvas.Draw(Rect.Left, Rect.Top, Image01.Picture.Bitmap);
end;

procedure TForm1.Image01Click(Sender: TObject);
begin
edit1.text:=timetostr(now);
end;

end.

//obj
object Form1: TForm1
Left = 192
Top = 130
Width = 979
Height = 563
Caption = 'Form1'
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'MS Sans Serif'
Font.Style = []
OldCreateOrder = False
PixelsPerInch = 96
TextHeight = 13
object Image01: TImage
Left = 208
Top = 38
Width = 16
Height = 22
Picture.Data = {
07544269746D617056040000424D560400000000000036000000280000001000
0000160000000100180000000000200400000000000000000000000000000000
0000FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0
FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0808080FFFBF0FFFBF0FFFBF0FFFBF0FFFB
F0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF080
8080FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0
FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0808080FFFBF0FFFBF0FFFBF0FFFBF0FFFB
F0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF080
8080FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0
FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0808080FFFBF0FFFBF0FFFBF0FFFBF0FFFB
F0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF080
8080FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0
FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0808080FFFBF0FFFBF0FFFBF0BCBBBA9191
91919191919191919191919191919191919191BCBBBAFFFBF0FFFBF0FFFBF080
8080FFFBF0FFFBF0FFFBF0919191E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3E3
E3E3E3919191FFFBF0FFFBF0FFFBF0808080FFFBF0FFFBF0FFFBF0919191E3E3
E3E3E3E3E3E3E3724229E3E3E3E3E3E3E3E3E3919191FFFBF0FFFBF0FFFBF080
8080FFFBF0FFFBF0FFFBF0919191ECEDEDECEDEDECEDED724229ECEDEDECEDED
ECEDED919191FFFBF0FFFBF0FFFBF0808080FFFBF0FFFBF0FFFBF0919191FBFB
FAA7634BA7634BA7634BA7634BA7634BFBFBFA919191FFFBF0FFFBF0FFFBF080
8080FFFBF0FFFBF0FFFBF0919191FBFBFAFBFBFAFBFBFA724229FBFBFAFBFBFA
FBFBFA919191FFFBF0FFFBF0FFFBF0808080FFFBF0FFFBF0FFFBF0919191FCFC
FCFCFCFCFCFCFC724229FCFCFCFCFCFCFCFCFC919191FFFBF0FFFBF0FFFBF080
8080FFFBF0FFFBF0FFFBF0919191FCFCFCFCFCFCFCFCFCFCFCFCFCFCFCFCFCFC
FCFCFC919191FFFBF0FFFBF0FFFBF0808080FFFBF0FFFBF0FFFBF0BCBBBA9191
91919191919191919191919191919191919191BCBBBAFFFBF0FFFBF0FFFBF080
8080FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0
FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0808080FFFBF0FFFBF0FFFBF0FFFBF0FFFB

F0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF080
8080FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0
FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0808080FFFBF0FFFBF0FFFBF0FFFBF0FFFB
F0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF080
8080FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0
FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0808080FFFBF0FFFBF0FFFBF0FFFBF0FFFB
F0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF0FFFBF080
8080}
Visible = False
OnClick = Image01Click
end
object ValueListEditor1: TValueListEditor
Left = 32
Top = 88
Width = 273
Height = 105
DefaultRowHeight = 20
Strings.Strings = (
' aaa='
' bbb='
' ccc='
'')
TabOrder = 0
OnDrawCell = ValueListEditor1DrawCell
ColWidths = (
150
100)
end
object Edit1: TEdit
Left = 48
Top = 40
Width = 121
Height = 21
TabOrder = 1
Text = 'Edit1'
end
end