public static extern int TdReqQrySecurityProduct(IntPtr pApi, ThostFtdcQrySecurityProductField pQrySecurityProduct, int nRequestID);
/// <summary> ///请求查询证券品种 /// </summary> public int ReqQrySecurityProduct(ThostFtdcQrySecurityProductField pQrySecurityProduct, int nRequestID) { return(Interop.TdReqQrySecurityProduct(Handle, pQrySecurityProduct, nRequestID)); }