/// <summary>
///请求查询交易所保证金率
/// </summary>
public int ReqQryExchangeMarginRate(ThostFtdcQryExchangeMarginRateField pQryExchangeMarginRate, int nRequestID)
{
return(Interop.TdReqQryExchangeMarginRate(Handle, pQryExchangeMarginRate, nRequestID));
}
public static extern int TdReqQryExchangeMarginRate(IntPtr pApi, ThostFtdcQryExchangeMarginRateField pQryExchangeMarginRate, int nRequestID);
