mainform.cpp

来自「C++ BUILDER精彩编程实例集锦(源码)3 第五部分 系统编程 第六部」· C++ 代码 · 共 57 行

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

#include <vcl.h>
#pragma hdrstop

#include "Mainform.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void  PreProcess(void)
{ //关机预处理，在Windows2000以上的操作系统通常需要这一过程
    HANDLE hToken;
    TOKEN_PRIVILEGES tkp;
    OpenProcessToken(GetCurrentProcess(),
    TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
    LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
    tkp.PrivilegeCount = 1;
    tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
    AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
}

void __fastcall TForm1::BitBtn1Click(TObject *Sender)
{// 重新登录计算机
   PreProcess();
   ExitWindowsEx(EWX_LOGOFF, 0);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::BitBtn2Click(TObject *Sender)
{//关闭计算机
  PreProcess();
  ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE, 0);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::BitBtn3Click(TObject *Sender)
{//重新启动计算机
   PreProcess();
   ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::BitBtn4Click(TObject *Sender)
{//强制关闭计算机
  PreProcess();
  ExitWindowsEx(EWX_POWEROFF| EWX_FORCE, 0);
}
//---------------------------------------------------------------------------