delphi将程序最小化至右下角

程序新手，如果有不恰当的地方，请大家帮忙改正！

1、下载并安装Raize.v5.5控件，delphi版本为：delphi 7.0。

2、添加RzTrayIcon控件、PopupMenu控件至窗体上。

3、程序代码示例：

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    RzTrayIcon1: TRzTrayIcon;
    PopupMenu1: TPopupMenu;
    N1: TMenuItem;
    ImageList1: TImageList;
    procedure N1Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    isclos :boolean; //用于判断是否退出程序
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.N1Click(Sender: TObject);
begin
   isclos := true;     
   form1.Close;
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
 if isclos then     //如果要退出程序，isclos必须为真
  begin
    action := cafree;
  end
  else begin
  action := canone;
  application.Minimize;
  end;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
    isclos := false;  // 将程序退出判断设为false，即不退出程序
end;

end.