unit AutoShut1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ExtCtrls, Menus, AppEvnts, shellapi;
type
TForm1 = class(TForm)
Timer1: TTimer;
Timer2: TTimer;
ApplicationEvents1: TApplicationEvents;
PopupMenu1: TPopupMenu;
Edit1: TEdit;
Edit2: TEdit;
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
Btn_OK: TButton;
Btn_Abort: TButton;
procedure Timer1Timer(Sender: TObject);
procedure TrayMenu(var Msg: TMessage); message WM_USER;
procedure TimeSetClick(Sender: TObject);
procedure ExitClick(Sender: TObject);
procedure Btn_OKClick(Sender: TObject);
procedure Btn_AbortClick(Sender: TObject);
procedure Timer2Timer(Sender: TObject);
procedure Edit2KeyPress(Sender: TObject; var Key: Char);
procedure WMQueryEndSession(var Msg: TWMQueryEndSession);
message WM_QueryEndSession;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
private
{ Private declarations }
Tray: NOTIFYICONDATA;
procedure ShowInTray();
public
{ Public declarations }
end;
var
Form1: TForm1;
P, Ti1: Pchar;
Flags: Longint;
i: integer;
{关机延迟时间}
TimeDelay: integer;
atom: integer;
implementation
{$R *.dfm}
{未到自动关机时间,系统要关闭时,截获关机消息
wm_queryendsession,让用户决定是否关机}
procedure TForm1.WMQueryEndSession(var Msg: TWMQueryEndSession);
begin
if MessageDlg('真的要关闭Windows吗?', mtConfirmation, [mbYes, mbNo], 0) = mrNo
then
Msg.Result := 0
else
Msg.Result := 1;
end;
{判断时间S格式是否是有效}
function IsValidTime(s: string): bool;
begin
if Length(s) <> 5 then
IsValidTime := False
else
begin
if (s[1] < '0') or (s[1] > '2') or (s[2] < '0') or
(s[2] > '9') or (s[3] <> ':') or
(s[4] < '0') or (s[4] > '5') or
(s[5] < '0') or (s[5] > '9') then
IsValidTime := False
else
IsValidTime := True;
end;
end;
{判断是哪类操作系统,以确定关机方式}
function GetOperatingSystem: string;
var
osVerInfo: TOSVersionInfo;
begin
Result := '';
osVerInfo.dwOSVersionInfoSize := SizeOf(TOSVersionInfo);
if GetVersionEx(osVerInfo) then
case osVerInfo.dwPlatformId of
VER_PLATFORM_WIN32_NT:
begin
Result := 'Windows NT/2000/XP'
end;
VER_PLATFORM_WIN32_WINDOWS:
begin
Result := 'Windows 95/98/98SE/Me';
end;
end;
end;
{获得计算机名}
function GetComputerName: string;
var
buffer: array[0..MAX_COMPUTERNAME_LENGTH + 1] of Char;
Size: Cardinal;
begin
Size := MAX_COMPUTERNAME_LENGTH + 1;
Windows.GetComputerName(@buffer, Size);
Result := strpas(buffer);
end;
{定时关机函数 ,各参数的意义如下:
Computer: 计算机名;Msg:显示的提示信息;
Time:时间延迟; Force:是否强制关机;
Reboot: 是否重启动}
function TimedShutDown(Computer: string; Msg: string;
Time: Word; Force: Boolean; Reboot: Boolean): Boolean;
var
rl: Cardinal;
hToken: Cardinal;
tkp: TOKEN_PRIVILEGES;
begin
{获得用户关机特权,仅对Windows NT/2000/XP}
OpenProcessToken(GetCurrentProcess, TOKEN_ADJUST_PRIVILEGES or TOKEN_QUERY,
hToken);
if LookupPrivilegeValue(nil, 'SeShutdownPrivilege', tkp.Privileges[0].Luid)
then
begin
tkp.Privileges[0].Attributes := SE_PRIVILEGE_ENABLED;
tkp.PrivilegeCount := 1;
AdjustTokenPrivileges(hToken, False, tkp, 0, nil, rl);
end;
Result := InitiateSystemShutdown(PChar(Computer), PChar(Msg), Time, Force,
Reboot)
end;
{窗体最小化后,显示在托盘中}
procedure tform1.ShowInTray;
begin
Tray.cbSize := sizeof(Tray);
Tray.Wnd := Self.Handle;
Tray.uFlags := NIF_ICON + NIF_MESSAGE + NIF_TIP;
Tray.uCallbackMessage := WM_USER;
Tray.hIcon := application.Icon.Handle;
Tray.szTip := '定时关机';
Shell_NotifyIcon(NIM_ADD, @Tray);
end;
{右键单击托盘中的图标,显示快捷菜单}
procedure Tform1.TrayMenu(var Msg: TMessage);
var
X, Y: Tpoint;
J, K: Integer;
begin
GetCursorPos(X);
GetCursorPos(Y);
J := X.X;
K := Y.Y;
if Msg.LParam = WM_RBUTTONDOWN then
PopupMenu1.Popup(J, K);
end;
procedure TForm1.Timer1Timer(Sender: TObject);
begin
Edit1.Text := FormatDateTime('hh:mm', Now);
{两个时间相等,计算机将在TimeDelay秒内强制关机}
if edit1.text = edit2.Text then
begin
TimeDelay := 30;
timer1.Enabled := False;
if GetOperatingSystem = 'Windows NT/2000/XP' then
begin
{调用系统的关机提示窗口,只限于Windows NT/2000/XP。}
TimedShutDown(getcomputername, '系统将要关机!',
TimeDelay, true, false);
btn_abort.Enabled := true;
timer2.Enabled := true;
end;
if GetOperatingSystem = 'Windows 95/98/98SE/Me' then
begin
timer2.Enabled := true;
{在顶层显示本程序的窗口,显示时间倒记时}
Application.Restore;
SetWindowPos(Handle, HWND_TOPMOST, Left, Top, Width, Height,
SWP_NOACTIVATE);
end;
end;
end;
procedure TForm1.Timer2Timer(Sender: TObject);
begin
btn_abort.Enabled := true;
label3.Caption := '离关机时间还有' + inttostr(timedelay) + '秒。';
if timedelay > 0 then
timedelay := timedelay - 1
else
begin
timer2.Enabled := false;
{强制Windows 95/98/98SE/Me关机}
ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE, 0);
end;
end;
{通过控件PopupMenu1定义的快捷菜单,包括"设置关机时间"和"退出"。
PopupMenu1的AutoPopup为False,下面是"设置关机时间"的代码}
procedure TForm1.TimeSetClick(Sender: TObject);
begin
{设置本程序窗口位于最顶层}
SetWindowPos(Handle, HWND_TOPMOST, Left, Top, Width, Height,
SWP_NOACTIVATE);
ShowWindow(Application.Handle, SW_NORMAL);
edit2.SetFocus;
edit2.SelectAll;
end;
{快捷菜单中"退出"的代码}
procedure TForm1.ExitClick(Sender: TObject);
begin
{如果已经开始倒记时,禁止退出,而是显示程序窗口}
if Timer2.Enabled = false then
begin
Application.Terminate;
end
else
ShowWindow(Application.Handle, SW_NORMAL);
end;
{确定按钮}
procedure TForm1.Btn_OKClick(Sender: TObject);
begin
btn_abort.Enabled := false;
label3.Caption := '提示:关机时间格式 HH:MM';
if timer1.Enabled = false then
timer1.Enabled := true;
{关机时间设置有效,程序将显示在托盘中,无效则提示。}
if IsValidTime(edit2.Text) then
begin
ShowWindow(Application.Handle, sw_minimize);
ShowWindow(Application.Handle, sw_hide);
ShowInTray;
end
else
showmessage('提示:时间格式错误,' + chr(13) +
'请输入正确的关机时间 HH:MM。');
end;
{取消关机按钮}
procedure TForm1.Btn_AbortClick(Sender: TObject);
begin
if GetOperatingSystem = 'Windows NT/2000/XP' then
{对于Windows NT/2000/XP,取消关机}
begin
AbortSystemShutdown(pchar(getcomputername));
end;
{停止倒记时}
if timer2.Enabled = true then
timer2.Enabled := false;
btn_abort.Enabled := false;
end;
{输入关机时间后,可直接按回车}
procedure TForm1.Edit2KeyPress(Sender: TObject; var Key: Char);
begin
if (key = #13) then
Btn_OK.Click;
end;
{搜寻系统原子表看是否程序已运行}
procedure TForm1.FormCreate(Sender: TObject);
begin
{如果没运行则在表中增加信息 }
if GlobalFindAtom('PROGRAM_RUNNING') = 0 then
atom := GlobalAddAtom('PROGRAM_RUNNING')
else
begin
{如果程序已运行则显示信息然后退出 }
MessageDlg('程序已经在运行!', mtWarning, [mbOK], 0);
Halt;
end;
end;
procedure TForm1.FormDestroy(Sender: TObject);
begin
{程序退出时,从原子表中移走信息}
GlobalDeleteAtom(atom);
{删除托盘中的图标}
Shell_NotifyIcon(NIM_DELETE, @Tray);
end;
procedure TForm1.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
begin
{如果已经开始倒记时,禁止关闭程序窗口}
if timer2.Enabled = true then
canclose := false;
end;
end.