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));
}