unit1.cpp

C++Builder高级应用开发指南随书源码

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
   switch(RadioGroup1->ItemIndex)
   {
      case 0://注销当前用户
      {
         Win32Check(ExitWindowsEx(EWX_LOGOFF,0));
         break;
      }
      case 1://关闭系统
      {
         Win32Check(ExitWindowsEx(EWX_SHUTDOWN,0));
         break;
      }
      case 2://重新启动                         
      {
         Win32Check(ExitWindowsEx(EWX_REBOOT,0));
         break;
      }
   }
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormCloseQuery(TObject *Sender, bool &CanClose)
{
    if (MessageDlg("是否真的退出?", mtConfirmation, TMsgDlgButtons() << mbYes << mbNo, 0) == mrYes)
    {
       CanClose=true;
    }
    else
    {
       CanClose=false;
    }
}
//---------------------------------------------------------------------------