- Head I.T. /Senior Programmer at Samoltech Studios Limited
- Nigeria
- 2694
This article explains how to use the major functionalities of the MQL5 Standard Library Trade Classes in writing Expert Advisors which implements position closing and modifying, pending order placing and deletion and verifying of Margin before placing a trade. We have also demonstrated how Trade classes can be used to obtain order and deal details.
This article explains the step by step process of identifying and resolving code errors as well as the steps in testing and optimizing of the Expert Advisor input parameters. You will learn how to use Strategy Tester of MetaTrader 5 client terminal to find the best symbol and set of input parameters for your Expert Advisor.
This article focuses on the object oriented approach to doing what we did in the article "Step-By-Step Guide to writing an Expert Advisor in MQL5 for Beginners" - creating a simple Expert Advisor. Most people think this is difficult, but I want to assure you that by the time you finish reading this article, you will be able to write your own Expert Advisor which is object oriented based.
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The Expert Advisors programming in MQL5 is simple, and you can learn it easy. In this step by step guide, you will see the basic steps required in writing a simple Expert Advisor based on a developed trading strategy. The structure of an Expert Advisor, the use of built-in technical indicators and trading functions, the details of the Debug mode and use of the Strategy Tester are presented.
mrequest.action = TRADE_ACTION_DEAL; // immediate order execution
mrequest.price = NormalizeDouble(latest_price.ask,_Digits); // latest ask price
mrequest.sl = NormalizeDouble(latest_price.ask - STP*_Point,_Digits); // Stop Loss
mrequest.tp = NormalizeDouble(latest_price.ask + TKP*_Point,_Digits); // Take Profit
mrequest.symbol = _Symbol; // currency pair
mrequest.volume = Lot; // number of lots to trade
mrequest.magic = EA_Magic; // Order Magic Number
mrequest.type = ORDER_TYPE_BUY; // Buy Order
mrequest.type_filling = ORDER_FILLING_FOK; // Order execution type
mrequest.deviation=100; // Deviation from current price
//--- send order
OrderSend(mrequest,mresult);
// get the result code
if(mresult.retcode==10009 || mresult.retcode==10008) //Request is completed or order placed
{
Alert(" una orden de compra se ha colocado exitosamente en el ticket#:",mresult.order,"!!");
}
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as I promised I write a few words... So thank you for the awesome articles once more!
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I was very glad when I received an answer and I got to know he is doing well and his current business (http://www.business-sms.com.ng) occupies most of his time thus he is not getting any chance to trade.
Hopefully one day he will be back and will bless again the mql5 community with some useful articles.
God bless you Samuel!