用程序实现关闭和重起计算机

//Mfc编写activex控件时取得控件容器句柄
//如果是取容器接口指针
LPOLECONTAINER lpContainer;
HRESULT hr = m_pClientSite->GetContainer(&lpContainer);

//如果是取窗口句柄
HWND m_hWndParent;
IOleInPlaceSite *pOleInPlaceSite = NULL;
if (NOERROR==m_pClientSite->QueryInterface(IID_IOleInPlaceSite, (LPVOID *)&pOleInPlaceSite))
{
pOleInPlaceSite->GetWindow((HWND *)&m_hWndParent);
pOleInPlaceSite->Release();
}

关闭计算机
OSVERSIONINFO OsVersionInfo; //包含操作系统版本信息的数据结构
OsVersionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&OsVersionInfo); //获取操作系统版本信息
if(OsVersionInfo.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS)
{
//Windows98,调用ExitWindowsEx()函数重新启动计算机
DWORD dwReserved;
ExitWindowsEx(EWX_REBOOT,dwReserved); //可以改变第一个参数，实现注销用户、
//关机、关闭电源等操作

// 退出前的一些处理程序
}

重启计算机
typedef int (CALLBACK *SHUTDOWNDLG)(int); //显示关机对话框函数的指针
HINSTANCE hInst = LoadLibrary("shell32.dll"); //装入shell32.dll
SHUTDOWNDLG ShutDownDialog; //指向shell32.dll库中显示关机对话框函数的指针
if(hInst != NULL)
{
//获得函数的地址并调用之
ShutDownDialog = (SHUTDOWNDLG)GetProcAddress(hInst,(LPSTR)60);
(*ShutDownDialog)(0);
}