mainunit.pas

来自「Delphi7编程80例(完全版)」· PAS 代码 · 共 68 行

unit MainUnit;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;

type
  TMainForm = class(TForm)
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    procedure GetPrivilege;
    { Private declarations }
  public
    { Public declarations }
  end;

var
  MainForm: TMainForm;

implementation

{$R *.DFM}
procedure TMainForm.GetPrivilege;
var
  NewState:       TTokenPrivileges;
  lpLuid:         Int64;
  ReturnLength:   DWord;
  ToKenHandle:    Cardinal;
begin
  OpenProcessToken(GetCurrentProcess,
                   TOKEN_ADJUST_PRIVILEGES
                   OR TOKEN_ALL_ACCESS
                   OR STANDARD_RIGHTS_REQUIRED
                   OR TOKEN_QUERY,ToKenHandle);
  LookupPrivilegeValue(nil,'SeShutdownPrivilege',lpLuid);
  NewState.PrivilegeCount:=1;
  NewState.Privileges[0].Luid:=lpLuid;
  NewState.Privileges[0].Attributes:=SE_PRIVILEGE_ENABLED;
  ReturnLength:=0;
  AdjustTokenPrivileges(ToKenHandle,False,NewState,0,nil,ReturnLength);
end;

procedure TMainForm.Button1Click(Sender: TObject);
begin
  GetPrivilege;
  ExitWindowsEx(EWX_REBOOT OR EWX_POWEROFF, 0);
end;

procedure TMainForm.Button2Click(Sender: TObject);
begin
  GetPrivilege;
  ExitWindowsEx(EWX_SHUTDOWN OR EWX_POWEROFF, 0);
end;

procedure TMainForm.Button3Click(Sender: TObject);
begin
  ExitWindowsEx(EWX_LOGOFF, 0);
end;

end.