Articles with MQL5 programming examples

Access a huge collection of articles with code examples showing how to create indicators and trading robots for the MetaTrader platform in the MQL5 language. Source codes are attached to the articles, so you can open them in MetaEditor and run them to see how the applications work.

These articles will be useful both for those who have just started exploring automated trading and for professional traders with programming experience. They feature not only examples, but also contain new ideas.

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Using Pseudo-Templates as Alternative to C++ Templates

The article describes a way of programming without using templates but keeping the style of programming iherenet to them. It tells about implementation of templates using custom methods and has a

Use of Resources in MQL5

MQL5 programs not only automate routine calculations, but also can create a full-featured graphical environment. The functions for creating truly interactive controls are now virtually the same rich

Parallel Calculations in MetaTrader 5

Time has been a great value throughout the history of mankind, and we strive not to waste it unnecessarily. This article will tell you how to accelerate the work of your Expert Advisor if your

Building a Spectrum Analyzer

This article is intended to get its readers acquainted with a possible variant of using graphical objects of the MQL5 language. It analyses an indicator, which implements a panel of managing a simple

Finding Errors and Logging

MetaEditor 5 has the debugging feature. But when you write your MQL5 programs, you often want to display not the individual values, but all messages that appear during testing and online work. When

The Implementation of a Multi-currency Mode in MetaTrader 5

For a long time multi-currency analysis and multi-currency trading has been of interest to people. The opportunity to implement a full fledged multi-currency regime became possible only with the

Charts and diagrams in HTML

Today it is difficult to find a computer that does not have an installed web-browser. For a long time browsers have been evolving and improving. This article discusses the simple and safe way to

Moving Mini-Max: a New Indicator for Technical Analysis and Its Implementation in MQL5

In the following article I am describing a process of implementing Moving Mini-Max indicator based on a paper by Z.G.Silagadze 'Moving Mini-max: a new indicator for technical analysis'. The idea of

Create your own Market Watch using the Standard Library Classes

The new MetaTrader 5 client terminal and the MQL5 Language provides new opportunities for presenting visual information to the trader. In this article, we propose a universal and extensible set of

Creating an Indicator with Multiple Indicator Buffers for Newbies

The complex codes consist of a set of simple codes. If you are familiar with them, it doesn't look so complicated. In this article, we will consider how to create an indicator with multiple indicator

Building interactive semi-automatic drag-and-drop Expert Advisor based on predefined risk and R/R ratio

Some traders execute all their trades automatically, and some mix automatic and manual trades based on the output of several indicators. Being a member of the latter group I needed an interactive tool

Growing Neural Gas: Implementation in MQL5

The article shows an example of how to develop an MQL5-program implementing the adaptive algorithm of clustering called Growing neural gas (GNG). The article is intended for the users who have studied

The "New Bar" Event Handler

MQL5 programming language is capable of solving problems on a brand new level. Even those tasks, that already have such solutions, thanks to object oriented programming can rise to a higher level. In

How to Quickly Create an Expert Advisor for Automated Trading Championship 2010

In order to develop an expert to participate in Automated Trading Championship 2010, let's use a template of ready expert advisor. Even novice MQL5 programmer will be capable of this task, because for

20 Trade Signals in MQL5

This article will teach you how to receive trade signals that are necessary for a trade system to work. The examples of forming 20 trade signals are given here as separate custom functions that can be

The Prototype of Trade Robot

This article summarizes and systematizes the principles of creating algorithms and elements of trading systems. The article considers designing of expert algorithm. As an example the CExpertAdvisor

MetaTrader 5 and MATLAB Interaction

This article covers the details of interaction between MetaTrader 5 and MatLab mathematical package. It shows the mechanism of data conversion, the process of developing a universal library to

Limitations and Verifications in Expert Advisors

Is it allowed to trade this symbol on Monday? Is there enough money to open position? How big is the loss if Stop Loss triggers? How to limit the number of pending orders? Was the trade operation

Creating and Publishing of Trade Reports and SMS Notification

Traders don't always have ability and desire to seat at the trading terminal for hours. Especially, if trading system is more or less formalized and can automatically identify some of the market

Transferring Indicators from MQL4 to MQL5

This article is dedicated to peculiarities of transferring price constructions written in MQL4 to MQL5. To make the process of transferring indicator calculations from MQL4 to MQL5 easier, the

How to Write an Indicator on the Basis of Another Indicator

In MQL5 you can write an indicator both from a scratch and on the basis of another already existing indicator, in-built in the client terminal or a custom one. And here you also have two ways - to

Testing Performance of Moving Averages Calculation in MQL5

A number of indicators have appeared since the time of first Moving Average indicator creation. Many of them use the similar smoothing methods, but the performances of different moving averages

Processing of trade events in Expert Advisor using the OnTrade() function

MQL5 gave a mass of innovations, including work with events of various types (timer events, trade events, custom events, etc.). Ability to handle events allows you to create completely new type of

The Use of ORDER_MAGIC for Trading with Different Expert Advisors on a Single Instrument

This article considers the questions of information coding, using the magic-identification, as well as the division, assembly, and synchronization of automatic trading of different Expert Advisors

A Library for Constructing a Chart via Google Chart API

The construction of various types of diagrams is an essential part of the analyses of the market situation and the testing of a trading system. Frequently, in order to construct a nice looking

Writing an Expert Advisor Using the MQL5 Object-Oriented Programming Approach

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

Creating an Expert Advisor, which Trades on a Number of Instruments

The concept of diversification of assets on financial markets is quiet old, and has always attracted beginner traders. In this article, the author proposes a maximally simple approach to a

Creating an Information Board Using the Standard Library Classes and Google Chart API

The MQL5 programming language primarily targets the creation of automated trading systems and complex instruments of technical analyses. But aside from this, it allows us to create interesting

Genetic Algorithms - It's Easy!

In this article the author talks about evolutionary calculations with the use of a personally developed genetic algorithm. He demonstrates the functioning of the algorithm, using examples, and

A DLL-free solution to communicate between MetaTrader 5 terminals using Named Pipes

The article describes how to implement Interprocess Communication between MetaTrader 5 client terminals using named pipes. For the use of the named pipes, the CNamedPipes class is developed. For the

Guide to writing a DLL for MQL5 in Delphi

The article examines the mechanism of creating a DLL module, using the popular programming language of ObjectPascal, within a Delphi programming environment. The materials, provided in this article

An Example of a Trading System Based on a Heiken-Ashi Indicator

In this article we look into the question of using a Heiken-Ashi indicator in trading. Based on this indicator, a simple trading system is considered and an MQL5 Expert Advisor is written. Trading

An Example of a Trading Strategy Based on Timezone Differences on Different Continents

Surfing the Internet, it is easy to find many strategies, which will give you a number of various recommendations. Let’s take an insider’s approach and look into the process of strategy creation

New Opportunities with MetaTrader 5

MetaTrader 4 gained its popularity with traders from all over the world, and it seemed like nothing more could be wished for. With its high processing speed, stability, wide array of possibilities for

OOP in MQL5 by Example: Processing Warning and Error Codes

The article describes an example of creating a class for working with the trade server return codes and all the errors that occur during the MQL-program run. Read the article, and you will learn how

Migrating from MQL4 to MQL5

This article is a quick guide to MQL4 language functions, it will help you to migrate your programs from MQL4 to MQL5. For each MQL4 function (except trading functions) the description and MQL5

Creating an Indicator with Graphical Control Options

Those who are familiar with market sentiments, know the MACD indicator (its full name is Moving Average Convergence/Divergence) - the powerful tool for analyzing the price movement, used by traders

Using the Object Pointers in MQL5

By default, all objects in MQL5 are passed by reference, but there is a possibility to use the object pointers. However it's necessary to perform the pointer checking, because the object may be not

MQL5: Analysis and Processing of Commodity Futures Trading Commission (CFTC) Reports in MetaTrader 5

In this article, we will develop a tool for CFTC report analysis. We will solve the following problem: to develop an indicator, that allows using the CFTC report data directly from the data files

Introduction to MQL5: How to write simple Expert Advisor and Custom Indicator

MetaQuotes Programming Language 5 (MQL5), included in MetaTrader 5 Client Terminal, has many new possibilities and higher performance, compared to MQL4. This article will help you to get acquainted