delphi 托盘程序 转

Delphi的托盘编程   。现在很多程序都用这个，比如傲游，迅雷等，主要代码如下：

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs, ShellAPI, AppEvnts, StdCtrls, Menus;

const WM_NID = WM_User + 1000; //声明一个常量

private

{ Private declarations } // 定义两个函数

procedure SysCommand(var SysMsg: TMessage); message WM_SYSCOMMAND;

procedure WMNID(var msg:TMessage); message WM_NID;

public

end;

var

Form1: TForm1;

NotifyIcon: TNotifyIconData; // 全局变量

implementation

{$R *.dfm}

procedure TForm1.WMNID(var msg:TMessage);

var

mousepos: TPoint;

begin

GetCursorPos(mousepos); //获取鼠标位置

case msg.LParam of

WM_LBUTTONUP: // 在托盘区点击左键后

begin

Form1.Visible := not Form1.Visible; // 显示主窗体与否

Shell_NotifyIcon(NIM_DELETE, @NotifyIcon); // 显示主窗体后删除托盘区的图标

SetWindowPos(Application.Handle, HWND_TOP, 0, 0, 0, 0, SWP_SHOWWINDOW); // 在任务栏显示程序

end;

WM_RBUTTONUP: PopupMenu1.Popup(mousepos.X, mousepos.Y); // 弹出菜单

end;

end;

procedure TForm1.FormDestroy(Sender: TObject);

begin

Shell_NotifyIcon(NIM_DELETE, @NotifyIcon); // 删除托盘图标

end;

procedure TForm1.SysCommand(var SysMsg: TMessage);

begin

case SysMsg.WParam of

SC_MINIMIZE: // 当最小化时

begin

SetWindowPos(Application.Handle, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_HIDEWINDOW);

Hide; // 在任务栏隐藏程序

// 在托盘区显示图标

with NotifyIcon do

begin

cbSize := SizeOf(TNotifyIconData);

Wnd := Handle;

uID := 1;

uFlags := NIF_ICON or NIF_MESSAGE or NIF_TIP;

uCallBackMessage := WM_NID;

hIcon := Application.Icon.Handle;

szTip := '托盘程序';

end;

Shell_NotifyIcon(NIM_ADD, @NotifyIcon); // 在托盘区显示图标

end;

else

inherited;

end;

end;

{以下三个函数为托盘右键菜单，可自行添加功能}

procedure TForm1.N1Click(Sender: TObject);

begin

ShowMessage('Delphi托盘小程序！');

end;

procedure TForm1.N2Click(Sender: TObject);

begin

Form1.Visible := true; // 显示窗体

SetWindowPos(Application.Handle, HWND_TOP, 0, 0, 0, 0, SWP_SHOWWINDOW);

Shell_NotifyIcon(NIM_DELETE, @NotifyIcon); // 删除托盘图标

end;

procedure TForm1.N3Click(Sender: TObject);

begin

Shell_NotifyIcon(NIM_DELETE, @NotifyIcon);

Application.Terminate;

end;

end.