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发表于 2015-5-15 16:19:49
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unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
Label1: TLabel;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
function GetOperatingSystem(): string;
procedure ShutDownComputer();
procedure Get_Shutdown_Privilege();
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
begin
ShutDownComputer();
end;
procedure ShutDownComputer();
begin
if GetOperatingSystem() = 'Windows NT/2000/XP' then
begin
Get_Shutdown_Privilege();
//调用此函数会出现系统关机提示窗口，并允许用户取消关机动作
InitiateSystemShutDown(nil, '关机提示：讨厌你所以关了你！', 3, True, False);
// InitiateSystemShutDown去掉的话就不显示提示窗口
ExitWindowsEx(EWX_SHUTDOWN+EWX_FORCE+EWX_POWEROFF+EWX_FORCEIFHUNG,0);
end
else
begin
ExitWindowsEx(EWX_SHUTDOWN+EWX_FORCE+EWX_POWEROFF+EWX_FORCEIFHUNG,0);
end;
end;
function GetOperatingSystem(): string; //获取操作系统信息
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;
procedure Get_Shutdown_Privilege(); //获得用户关机特权，仅对Windows NT/2000/XP
var
rl: Cardinal;
hToken: Cardinal;
tkp: TOKEN_PRIVILEGES;
begin
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;
end;
end. |
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