/// <summary> /// 撤单。 /// </summary> /// <param name="orderNum">委托单号。</param> /// <param name="product">委托产品。</param> /// <param name="error">[out]撤单失败错误信息。</param> /// <returns>撤单是否成功。</returns> public abstract bool CancelOrder(USeOrderNum orderNum, USeInstrument product, out string error);
///// <summary>
///// 查询当日某一合约的委托回报。
///// </summary>
///// <param name="product">合约。</param>
///// <returns></returns>
//public abstract USeOrderBook[] QueryOrderBooks(USeInstrument product);
/// <summary>
/// 查询指定委托单号的委托回报。
/// </summary>
/// <param name="orderNum"></param>
/// <returns></returns>
public abstract USeOrderBook QueryOrderBook(USeOrderNum orderNum);
