public void WTP_RegMD()
{
MdApi.WTP_RegOnFrontConnected(OnConnect_2);
MdApi.WTP_RegOnFrontDisconnected(OnDisconnect_2);
MdApi.WTP_RegOnRspUserLogin(OnRspUserLogin_2);
MdApi.WTP_RegOnRspUserLogout(OnRspUserLogout_2);
MdApi.WTP_RegOnRspError(OnRspError_2);
MdApi.WTP_RegOnRspQrySymbol(OnRspQrySymbol_2);
MdApi.WTP_RegOnRspQryQuotation(OnRspQryQuotation_2);
MdApi.WTP_RegOnRtnQuotation(OnRtnQuotation_2);
}