系统服务的处理（C++版)

int __fastcall  Server_Servers::QueryServerStats(AnsiString SERV,AnsiString Service)
...{
    SERVICE_STATUS ssStatus;
    DWORD dwOldCheckPoint;
    SC_HANDLE schService , schSCManager ;
    schSCManager = OpenSCManager(
                SERV.c_str(),  // pointer to machine name string
                NULL,  // pointer to database name string
                SC_MANAGER_ALL_ACCESS  // type of access
            );

    schService = OpenService(
                schSCManager,                      //   SCM   database
                Service.c_str(),          //   service   name Topsky_ServerService
                SERVICE_ALL_ACCESS);
    if (schService == NULL)
    ...{
        PMSGDLG->ShowErrorMsg("服务不存在!");
        return -1;
    }

    if (!QueryServiceStatus(
                schService,        //   handle   to   service
                &ssStatus) )     //   address   of   status   information
    ...{
        PMSGDLG->ShowErrorMsg("查询服务状态失败!");
        return -1;
    }
    else
        return  ssStatus.dwCurrentState;


}
//启动服务
void __fastcall Server_Servers::StartServerServers(AnsiString SERV,AnsiString Service)
...{
    SERVICE_STATUS ssStatus;
    DWORD dwOldCheckPoint;
    SC_HANDLE schService , schSCManager ;
    schSCManager = OpenSCManager(
                SERV.c_str(),  // pointer to machine name string
                NULL,  // pointer to database name string
                SC_MANAGER_ALL_ACCESS  // type of access
            );

    schService = OpenService(
                schSCManager,                      //   SCM   database
                Service.c_str(),          //   service   name Topsky_ServerService
                SERVICE_ALL_ACCESS);

    if (schService == NULL)
    ...{
        PMSGDLG->ShowErrorMsg("服务不存在!");
        return ;
    }

    if (!StartService(schService, 0, NULL)) //
    ...{
        PMSGDLG->ShowErrorMsg("无法启动服务！");
        return ;
    }
    else
        ;// PMSGDLG->ShowErrorMsg("服务正在启动...");

    //   Check   the   status   until   the   service   is   no   longer   start   pending.

    if (!QueryServiceStatus(
                schService,        //   handle   to   service
                &ssStatus) )     //   address   of   status   information
    ...{
        PMSGDLG->ShowErrorMsg("查询服务状态失败!");
        return ;
    }

    while (ssStatus.dwCurrentState == SERVICE_START_PENDING)
    ...{
        //   Save   the   current   checkpoint.

        dwOldCheckPoint = ssStatus.dwCheckPoint;

        //   Wait   for   the   specified   interval.

        Sleep(ssStatus.dwWaitHint);

        //   Check   the   status   again.

        if (!QueryServiceStatus(
                    schService,        //   handle   to   service
                    &ssStatus) )     //   address   of   status   information
            break;

        //   Break   if   the   checkpoint   has   not   been   incremented.

        if (dwOldCheckPoint >= ssStatus.dwCheckPoint)
            break;
    }

    if (ssStatus.dwCurrentState == SERVICE_RUNNING)
        ;//  PMSGDLG->ShowErrorMsg("启动服务成功！");
    else
    ...{
        PMSGDLG->ShowErrorMsg("CurrentState:   " + AnsiString(ssStatus.dwCurrentState));
        PMSGDLG->ShowErrorMsg("Win32ExitCode:   " + AnsiString(ssStatus.dwWin32ExitCode));
        PMSGDLG->ShowErrorMsg("ServiceSpecificExitCode:   " + AnsiString(ssStatus.dwServiceSpecificExitCode));
        PMSGDLG->ShowErrorMsg("CheckPoint:   " + AnsiString( ssStatus.dwCheckPoint));
        PMSGDLG->ShowErrorMsg("WaitHint:   " + AnsiString( ssStatus.dwWaitHint));
    }
    CloseServiceHandle(schService);
}
//停止服务
void __fastcall Server_Servers::StopServerServers(AnsiString SERV,AnsiString Service)
...{
    SC_HANDLE schSCManager , schService ;
    SERVICE_STATUS ssStatus;
    DWORD dwOldCheckPoint;
    schSCManager = OpenSCManager(SERV.c_str(), NULL, SC_MANAGER_ALL_ACCESS);
    if (schSCManager != NULL)
    ...{
        schService = OpenService(schSCManager, Service.c_str(), SERVICE_STOP | SERVICE_QUERY_STATUS);
        if (schService != NULL)
        ...{
            ControlService(schService, SERVICE_CONTROL_STOP, &ssStatus);
            Sleep(2000);
            if (!QueryServiceStatus(
                        schService,        //   handle   to   service
                        &ssStatus) )     //   address   of   status   information
            ...{
                PMSGDLG->ShowErrorMsg("查询服务状态失败!");
                return ;
            }
            while (ssStatus.dwCurrentState == SERVICE_STOP_PENDING)
            ...{
                //   Save   the   current   checkpoint.
                dwOldCheckPoint = ssStatus.dwCheckPoint;
                //   Wait   for   the   specified   interval.
                Sleep(ssStatus.dwWaitHint);
                //   Check   the   status   again.
                if (!QueryServiceStatus(
                            schService,        //   handle   to   service
                            &ssStatus) )     //   address   of   status   information
                    break;

                //   Break   if   the   checkpoint   has   not   been   incremented.
                if (dwOldCheckPoint >= ssStatus.dwCheckPoint)
                    break;
            }

            if (ssStatus.dwCurrentState == SERVICE_STOPPED)
                ;//  PMSGDLG->ShowErrorMsg("停止服务成功！");
            else
            ...{
                PMSGDLG->ShowErrorMsg("CurrentState:   " + AnsiString(ssStatus.dwCurrentState));
                PMSGDLG->ShowErrorMsg("Win32ExitCode:   " + AnsiString(ssStatus.dwWin32ExitCode));
                PMSGDLG->ShowErrorMsg("ServiceSpecificExitCode:   " + AnsiString(ssStatus.dwServiceSpecificExitCode));
                PMSGDLG->ShowErrorMsg("CheckPoint:   " + AnsiString( ssStatus.dwCheckPoint));
                PMSGDLG->ShowErrorMsg("WaitHint:   " + AnsiString( ssStatus.dwWaitHint));
            }
            CloseServiceHandle(schService);

        }
        CloseServiceHandle(schSCManager);
    }
}
//暂停服务
void __fastcall Server_Servers::PauseServerServers(AnsiString SERV,AnsiString Service)
...{
    SC_HANDLE schSCManager , schService ;
    SERVICE_STATUS ssStatus;
    DWORD dwOldCheckPoint;
    schSCManager = OpenSCManager(SERV.c_str(), NULL, SC_MANAGER_ALL_ACCESS);
    if (schSCManager != NULL)
    ...{
        schService = OpenService(schSCManager, Service.c_str(), SERVICE_PAUSE_CONTINUE);
        if (schService != NULL)
        ...{
            ControlService(schService, SERVICE_CONTROL_PAUSE, &ssStatus);
            Sleep(3000);
            CloseServiceHandle(schService);
        }
        CloseServiceHandle(schSCManager);
    }
}
//继续服务
void __fastcall Server_Servers::ContinueServerServers(AnsiString SERV,AnsiString Service)
...{
    SC_HANDLE schSCManager , schService ;
    SERVICE_STATUS ServiceStatus;
    schSCManager = OpenSCManager(SERV.c_str(), NULL, SC_MANAGER_ALL_ACCESS);
    if (schSCManager != NULL)
    ...{
        schService = OpenService(schSCManager, Service.c_str(), SERVICE_PAUSE_CONTINUE);
        if (schService != NULL)
        ...{
            QueryServiceStatus(schService, &ServiceStatus);
            ControlService(schService, SERVICE_CONTROL_CONTINUE, &ServiceStatus);
            Sleep(3000);
            CloseServiceHandle(schService);
        }
        CloseServiceHandle(schSCManager);
    }
}
//取得网上邻居
bool __fastcall Server_Servers::EnumHosts(NETRESOURCE* pNetRes)
...{
    HANDLE hEnum = NULL;
    DWORD dwRet= WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, 0, pNetRes, &hEnum);
    if (dwRet != NO_ERROR)
        return false;

    NETRESOURCE* pResBuf = new NETRESOURCE[8];
    DWORD cCount, dwBuf = 8*sizeof( NETRESOURCE);
    DWORD i;
    do
    ...{
        cCount = (DWORD)-1;
        dwRet = WNetEnumResource(hEnum, &cCount, (LPVOID)pResBuf, &dwBuf);
        for ( i = 0; i < cCount; ++i)
        ...{
            ;//  AddHostToVector(&pResBuf[i]);
        }
        if(pResBuf[i].dwUsage & RESOURCEUSAGE_CONTAINER)
            EnumHosts(&pResBuf[i]);

        if (dwRet == ERROR_NO_MORE_ITEMS)
        ...{ //Enum finished.
            dwRet = NO_ERROR;
            break;
        }
        else if (dwRet != NO_ERROR)
            break;
    }
    while (dwRet == NO_ERROR);

    delete pResBuf;
    return (dwRet == NO_ERROR);
}