unit1.pas

Delphi实效编程百例的随书源代码 这是其中的操作系统部分

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    procedure Button2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button2Click(Sender: TObject);
var
        st : SYSTEMTIME;
        hToken : THANDLE;
        tkp : TOKEN_PRIVILEGES;
        rr : Dword;
begin
        OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES or TOKEN_QUERY,hToken);
        LookupPrivilegeValue(nil,'SeShutdownPrivilege',tkp.Privileges[0].Luid);
        // 设定权限为1
        tkp.PrivilegeCount := 1;
        tkp.Privileges[0].Attributes := SE_PRIVILEGE_ENABLED;
        // 得到权限
        AdjustTokenPrivileges(hToken, FALSE, tkp, 0,nil,rr);
        // 关闭计算机
        ExitWindows(0, 0)
end;

procedure TForm1.Button1Click(Sender: TObject);
var
        st : SYSTEMTIME;
        hToken : THANDLE;
        tkp : TOKEN_PRIVILEGES;
        rr : Dword;
begin
        OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES or TOKEN_QUERY,hToken);
        LookupPrivilegeValue(nil,'SeShutdownPrivilege',tkp.Privileges[0].Luid);
        // 设定权限为1
        tkp.PrivilegeCount := 1;
        tkp.Privileges[0].Attributes := SE_PRIVILEGE_ENABLED;
        // 得到权限
        AdjustTokenPrivileges(hToken, FALSE, tkp, 0,nil,rr);
        // 重起计算机
        ExitWindowsEx(EWX_LOGOFF, 0)
end;

end.