C++操作WIndow平台关机，重启，注销，可以通过JNI使用JAVA调用

void powerControl(){

     HANDLE hToken;

     TOKEN_PRIVILEGES tp;  

     LUID luid;            

     LPTSTR szReturn = NULL ;                      

     if (OpenProcessToken( GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) 

     {

         LookupPrivilegeValue( NULL, SE_SHUTDOWN_NAME, &luid ) ;                               

         tp.PrivilegeCount = 1 ;

         tp.Privileges[0].Luid = luid ;

         tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED ;

         AdjustTokenPrivileges( hToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), NULL, NULL) ; 

         ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE, 0) ;//关机

         //ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0) ;//重启电脑

         //ExitWindowsEx(EWX_LOGOFF | EWX_FORCE, 0) ;//注销

     }

}