public unsafe QuerySecurityIntradayOrderOutput QuerySecurityIntradayOrder(QuerySecurityIntradayOrderInput input) { if (input == null) { throw new ArgumentNullException(nameof(input)); } byte *pInput = stackalloc byte[QuerySecurityIntradayOrderInput.GetSize()]; byte *pOutput = null; input.WriteTo(pInput); int result = UnsafeNativeMethods.rushquant_trade_QuerySecurityIntradayOrder(this._accountId, pInput, ref pOutput); QuerySecurityIntradayOrderOutput output = new QuerySecurityIntradayOrderOutput(); output.ReadFrom(pOutput); UnsafeNativeMethods.rushquant_free(pOutput); if (result != ErrorCode.Success) { throw new RushQuantClientException(result, output.ErrorMessage); } return(output); }