MQL5 Programming Articles

Study the MQL5 language for programming trading strategies in numerous published articles mostly written by you - the community members. The articles are grouped into categories to help you quicker find answers to any questions related to programming: Integration, Tester, Trading Strategies, etc.

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MQL5 Cookbook: Saving Optimization Results of an Expert Advisor Based on Specified Criteria

We continue the series of articles on MQL5 programming. This time we will see how to get results of each optimization pass right during the Expert Advisor parameter optimization. The implementation...

MetaTrader AppStore Results for Q3 2013

Another quarter of the year has passed and we have decided to sum up its results for MetaTrader AppStore - the largest store of trading robots and technical indicators for MetaTrader platforms. More...

MQL5 Wizard: How to Teach an EA to Open Pending Orders at Any Price

The article describes a method of modifying the code of a trading signal module for the implementation of the functionality allowing you to set pending orders at any distance from the current price:...

MQL5 Cookbook: Reducing the Effect of Overfitting and Handling the Lack of Quotes

Whatever trading strategy you use, there will always be a question of what parameters to choose to ensure future profits. This article gives an example of an Expert Advisor with a possibility to...

How to Make Money from MetaTrader AppStore and Trading Signals Services If You Are Not a Seller or a Provider

It is possible to start making money on MQL5.com right now without having to be a seller of Market applications or a profitable signals provider. Select the products you like and post links to them on...

Creating Neural Network EAs Using MQL5 Wizard and Hlaiman EA Generator

The article describes a method of automated creation of neural network EAs using MQL5 Wizard and Hlaiman EA Generator. It shows you how you can easily start working with neural networks, without...

Extending MQL5 Standard Library and Reusing Code

MQL5 Standard Library makes your life as a developer easier. Nevertheless, it does not implement all the needs of all developers in the world, so if you feel that you need some more custom stuff you...

Trading Signal Generator Based on a Custom Indicator

How to create a trading signal generator based on a custom indicator? How to create a custom indicator? How to get access to custom indicator data? Why do we need the IS_PATTERN_USAGE(0) structure and...

Building an Automatic News Trader

This is the continuation of Another MQL5 OOP class article which showed you how to build a simple OO EA from scratch and gave you some tips on object-oriented programming. Today I am showing you the...

MQL5 Cookbook: Writing the History of Deals to a File and Creating Balance Charts for Each Symbol in Excel

When communicating in various forums, I often used examples of my test results displayed as screenshots of Microsoft Excel charts. I have many times been asked to explain how such charts can be...

Another MQL5 OOP Class

This article shows you how to build an Object-Oriented Expert Advisor from scratch, from conceiving a theoretical trading idea to programming a MQL5 EA that makes that idea real in the empirical world...

MQL5 Cookbook: Developing a Multi-Currency Expert Advisor with Unlimited Number of Parameters

In this article, we will create a pattern that uses a single set of parameters for optimization of a trading system, while allowing for unlimited number of parameters. The list of symbols will be...

Social Trading with the MetaTrader 4 and MetaTrader 5 Trading Platforms

What is social trading? It is a mutually beneficial cooperation of traders and investors whereby successful traders allow monitoring of their trading and potential investors take the opportunity to...

MQL5 Market Results for Q2 2013

Successfully operating for 1.5 years, MQL5 Market has become the largest traders' store of trading strategies and technical indicators. It offers around 800 trading applications provided by 350...

How to Install and Use OpenCL for Calculations

It has been over a year since MQL5 started providing native support for OpenCL. However not many users have seen the true value of using parallel computing in their Expert Advisors, indicators or...

MQL5 Cookbook: Multi-Currency Expert Advisor - Simple, Neat and Quick Approach

This article will describe an implementation of a simple approach suitable for a multi-currency Expert Advisor. This means that you will be able to set up the Expert Advisor for testing/trading under...

MQL5 Cookbook: Developing a Framework for a Trading System Based on the Triple Screen Strategy

In this article, we will develop a framework for a trading system based on the Triple Screen strategy in MQL5. The Expert Advisor will not be developed from scratch. Instead, we will simply modify the...

MQL5 Cookbook: Using Indicators to Set Trading Conditions in Expert Advisors

In this article, we will continue to modify the Expert Advisor we have been working on throughout the preceding articles of the MQL5 Cookbook series. This time, the Expert Advisor will be enhanced...

Indicator for Point and Figure Charting

There are lots of chart types that provide information on the current market situation. Many of them, such as Point and Figure chart, are the legacy of the remote past. The article describes an...

The ZigZag Indicator: Fresh Approach and New Solutions

The article examines the possibility of creating an advanced ZigZag indicator. The idea of identifying nodes is based on the use of the Envelopes indicator. We assume that we can find a certain...

MQL5 Cookbook: The History of Deals And Function Library for Getting Position Properties

It is time to briefly summarize the information provided in the previous articles on position properties. In this article, we will create a few additional functions to get the properties that can only...

MQL5 Programming Basics: Time

The article focuses on standard MQL5 functions for working with time, as well as programming techniques and practically useful functions for working with time that are required when creating Expert...

Debugging MQL5 Programs

This article is intended primarily for the programmers who have already learned the language but have not fully mastered the program development yet. It reveals some debugging techniques and presents...

MQL5 Cookbook: How to Avoid Errors When Setting/Modifying Trade Levels

In continuation of our work on the Expert Advisor from the previous article of the series called "MQL5 Cookbook: Analyzing Position Properties in the MetaTrader 5 Strategy Tester", we will enhance it...

MQL5 Programming Basics: Strings

The article covers everything you can do with strings in MQL5. It should be of interest primarily to novice MQL5 programmers, while experienced developers will have a good opportunity to summarize and...

MQL5 Cloud Network: Are You Still Calculating?

It will soon be a year and a half since the MQL5 Cloud Network has been launched. This leading edge event ushered in a new era of algorithmic trading - now with a couple of clicks, traders can have...

MQL5 Market Results for Q1 2013

Since its founding, the store of trading robots and technical indicators MQL5 Market has already attracted more than 250 developers who have published 580 products. The first quarter of 2013 has...

MQL5 Cookbook: Analyzing Position Properties in the MetaTrader 5 Strategy Tester

We will present a modified version of the Expert Advisor from the previous article "MQL5 Cookbook: Position Properties on the Custom Info Panel". Some of the issues we will address include getting...

Jeremy Scott - Successful MQL5 Market Seller

Jeremy Scott who is better known under Johnnypasado nickname at MQL5.community became famous offering products in our MQL5 Market service. Jeremy has already made several thousands of dollars in the...

MQL5 Cookbook: Position Properties on the Custom Info Panel

This time we will create a simple Expert Advisor that will get position properties on the current symbol and display them on the custom info panel during manual trading. The info panel will be created...

MQL5 Programming Basics: Arrays

Arrays are an integral part of almost any programming language along with variables and functions. The article should be of interest primarily to novice MQL5 programmers, while experienced programmers...

MQL5 Cookbook: Getting Position Properties

In this article, we will create a script that gets all position properties and displays them to the user in a dialog box. Upon running the script, you will be able to select out of two modes available...

MQL5 Cookbook: Using Different Print Modes

This is the first article of the MQL5 Cookbook series. I will start with simple examples to allow those who are taking their first steps in programming to gradually become familiar with the new...

Calculation of Integral Characteristics of Indicator Emissions

Indicator emissions are a little-studied area of market research. Primarily, this is due to the difficulty of analysis that is caused by the processing of very large arrays of time-varying data....

Change Expert Advisor Parameters From the User Panel "On the Fly"

This article provides a small example demonstrating the implementation of an Expert Advisor whose parameters can be controlled from the user panel. When changing the parameters "on the fly", the...

Fast Testing of Trading Ideas on the Chart

The article describes the method of fast visual testing of trading ideas. The method is based on the combination of a price chart, a signal indicator and a balance calculation indicator. I would like...

MQL5 Market Turns One Year Old

One year has passed since the launch of sales in MQL5 Market. It was a year of hard work, which turned the new service into the largest store of trading robots and technical indicators for MetaTrader...

MetaTrader 4 and MetaTrader 5 Trading Signals Widgets

Recently MetaTrader 4 and MetaTrader 5 user received an opportunity to become a Signals Provider and earn additional profit. Now, you can display your trading success on your web site, blog or social...

Order Strategies. Multi-Purpose Expert Advisor

This article centers around strategies that actively use pending orders, a metalanguage that can be created to formally describe such strategies and the use of a multi-purpose Expert Advisor whose...

Neural Networks: From Theory to Practice

Nowadays, every trader must have heard of neural networks and knows how cool it is to use them. The majority believes that those who can deal with neural networks are some kind of superhuman. In this...