如何在对话框中实现注销功能？

Question

一个基于对话框的MFC数据库应用程序，包括一个主界面，点击该主界面上的退出系统按钮进入退出系统对话框，该对话框有两个单选按钮: “退出系统“和“注销并以其他用户登陆“
请问：如何实现后者--注销并以其他用户登陆？

Answer 1

是操作系统吗
要是操作系统
就
ExitWindowEx(nFlag,reserve)
nFlag:EWX_LOGOFF
      EWX_PWEROFF
      EWX_REBOOT
      EWX_SHUTDOWN

Answer 2

void CShutDlg::OnRestart() 
{

OSVERSIONINFO OsVersionInfo;
OsVersionInfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
GetVersionEx(&OsVersionInfo);
if( OsVersionInfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
{
DWORD dwReserved;
ExitWindowsEx(EWX_LOGOFF,dwReserved);
}}
void CShutDlg::OnShutdown()
{
   OSVERSIONINFO OsVersionInfo;
OsVersionInfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
GetVersionEx(&OsVersionInfo);
if( OsVersionInfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
{
TOKEN_PRIVILEGES tkp,tkpnewbutignored;
HANDLE hdltokenhandle;
BOOL rc;
LUID tmpluid;
DWORD lbufferneeded;
HANDLE  hdlprocesshandle = GetCurrentProcess();
rc = OpenProcessToken(hdlprocesshandle,TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &hdltokenhandle);
rc = LookupPrivilegeValue("","SeShutdownPrivilege", &tmpluid);
tkp.PrivilegeCount = 1; // one privilege to set
tkp.Privileges[0].Luid = tmpluid;
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
rc = AdjustTokenPrivileges(hdltokenhandle,FALSE,&tkp,sizeof(tkpnewbutignored),&tkpnewbutignored, &lbufferneeded);
ExitWindowsEx(EWX_SHUTDOWN|EWX_FORCE,  0);
}
else
{
ExitWindowsEx(EWX_SHUTDOWN,0);
}
}