exitwinexu.pas

DelphiWin32核心API参考光盘内容.是学习书籍中的源码,便于学习.

unit ExitWinExU;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    ComboBox1: TComboBox;
    Label1: TLabel;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

const
  {an array of shutdown constants}
  ShutDownConst: array[0..3] of UINT = (EWX_LOGOFF, EWX_POWEROFF, EWX_REBOOT,
                                        EWX_SHUTDOWN);


procedure TForm1.Button1Click(Sender: TObject);
begin
  {shuts down the system according to the selection option}
  ExitWindowsEx(ShutDownConst[ComboBox1.ItemIndex], 0);
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  {logs off the current user}
  ExitWindows(0, 0);
end;

end.