检查Windows服务运行状态

 C++ Code 

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#include  <iostream> #include  <tchar.h> #include  <Windows.h> using   namespace  std; /*  检查Windows服务状态信息     使用API:     OpenSCManager     OpenService     QueryServiceStatusEx */ int  main( void ) {     TCHAR szSvcName[]       = _T( "HistorySvr" );     SC_HANDLE schSCManager  =  NULL ;     SC_HANDLE schService    =  NULL ;     SERVICE_STATUS_PROCESS ssStatus;     DWORD dwOldCheckPoint   =  0 ;     DWORD dwStartTickCount  =  0 ;     DWORD dwWaitTime        =  0 ;     DWORD dwBytesNeeded     =  0 ;      // Get a handle to the SCM database.     schSCManager = OpenSCManager(                         NULL ,                                 // local computer                         NULL ,                                 // ServicesActive database                        SC_MANAGER_ALL_ACCESS);               // full access rights      if  ( NULL  == schSCManager)     {         printf( "OpenSCManager failed (%d)\n" , GetLastError());     }      // Get a handle to the service.     schService = OpenService(                      schSCManager,                       // SCM database                      szSvcName,                          // name of service                      SERVICE_QUERY_STATUS |                      SERVICE_ENUMERATE_DEPENDENTS);      // full access      if  (schService ==  NULL )     {         printf( "OpenService failed (%d)\n" , GetLastError());         CloseServiceHandle(schSCManager);     }      // Check the status in case the service is not stopped.      if  (!QueryServiceStatusEx(                 schService,                          // handle to service                 SC_STATUS_PROCESS_INFO,              // information level                 (LPBYTE) &ssStatus,                  // address of structure                  sizeof (SERVICE_STATUS_PROCESS),      // size of structure                 &dwBytesNeeded ) )                   // size needed if buffer is too small     {         printf( "QueryServiceStatusEx failed (%d)\n" , GetLastError());         CloseServiceHandle(schService);         CloseServiceHandle(schSCManager);     }      else     {          // Check if the service is already running. It would be possible          // to stop the service here, but for simplicity this example just returns.         printf( "Service status: " );          switch (ssStatus.dwCurrentState)         {          case  SERVICE_STOPPED:          case  SERVICE_STOP_PENDING:             printf( "Stop" );              break ;          case  SERVICE_PAUSED:          case  SERVICE_PAUSE_PENDING:             printf( "Pause" );              break ;          case  SERVICE_CONTINUE_PENDING:          case  SERVICE_RUNNING:          case  SERVICE_START_PENDING:             printf( "Running" );              break ;         }         cout << endl;     }     cin.get();      return   0 ; }

　　PS：请以管理员权限运行该程序，VS配置如下：

 　　

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