生成任务栏图标

unit Unit4;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs,ComCtrls,ExtCtrls,StdCtrls,ToolWin,ShellApi,Menus, jpeg;

  //define the consts
  const
    WM_MY_Notify=WM_USER+100;

type
  TForm4 = class(TForm)
    Image1: TImage;
    PopupMenu1: TPopupMenu;

    S1: TMenuItem;
    H1: TMenuItem;
    N1: TMenuItem;
    E1: TMenuItem;
    procedure E1Click(Sender: TObject);
    procedure H1Click(Sender: TObject);
    procedure S1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);

  private
    { Private declarations }
    //the icon data structure...
    TrayIcon:PNOTIFYICONDATA;

    //icon 图像
    Icon:TIcon;

  public
    { Public declarations }
    //自定义消息函数..
    procedure NotifyIconClick(var msg:TMessage);Message WM_MY_Notify;
  end;

var
  Form4: TForm4;

implementation

{$R *.dfm}

procedure TForm4.FormClose(Sender: TObject; var Action: TCloseAction);
begin
///**** 释放对象
   Dispose(TrayIcon);
   Icon.free;

end;

procedure TForm4.FormCreate(Sender: TObject);
begin
//******** 创建对象
    New(TrayIcon);

    TrayIcon.cbSize:=SizeOf(TrayIcon^);

    TrayIcon.uID:=200;
    TrayIcon.wnd:=Handle;
    TrayIcon.uCallbackMessage:=WM_MY_Notify;
    TrayIcon.uFlags:=NIF_ICON+NIF_Tip+NIF_MESSAGE;
    TrayIcon.szTip:='任务栏图标';

    //creat icon...
    Icon:=TIcon.Create;
    Icon.Assign(Image1.Picture);
    TrayIcon.hIcon:=Icon.Handle;

    //生成任务栏图标
    Shell_NotifyIcon(NIM_ADD,TrayIcon);

end;

Procedure TForm4.NotifyIconClick(var msg:TMessage);
var
  p:TPoint;
begin
  try
    case msg.LParam of

    WM_RBUTTONDOWN:
    begin
      GetCursorPos(p);
      PopupMenu1.Popup(p.X,p.Y);
    end;

　　//WM_LBUTTONDOWM:左键按下消息

    end;
  except
  end;

end;

procedure TForm4.S1Click(Sender: TObject);
begin
//****** file
    Show;
end;

procedure TForm4.H1Click(Sender: TObject);
begin
//********** edit
    hide;

　　{

　　　　s1.Enabled:=false;

　　　　h1.Enabled:=true;

　　}
end;

procedure TForm4.E1Click(Sender: TObject);
begin
//*********** hejp
   close;

　　{//更改菜单项的有效性

　　　　　h1.Enabled:=false;

　　　　s1.Enabled:=true;

　

　　}

end;

end.