public virtual void OnFrontConnected()
 {
     if (SwigDerivedClassHasMethod("OnFrontConnected", swigMethodTypes0))
     {
         CTPMarketCppWrapperPINVOKE.CThostFtdcMdSpi_OnFrontConnectedSwigExplicitCThostFtdcMdSpi(swigCPtr);
     }
     else
     {
         CTPMarketCppWrapperPINVOKE.CThostFtdcMdSpi_OnFrontConnected(swigCPtr);
     }
 }