MetaQuotes Language 4 (MQL4)
What is MQL4?
MetaQuotes Language 4 (MQL4) - developed by MetaQuotes Software Corp, embedded in the trading MetaTrader 4 terminal programming language of strategies for trading on exchange and over-the-counter (Forex) platforms.
Why do I need MQL4?
Major developments in the language MQL4 - Expert Advisors, which allow you to automate the management of trading processes and are used to create your own mechanical trading strategies. The language also allows to program technical indicators for stock trading, scripts and function libraries.
The language is made up of MetaQuotes Language 4 includes functions for analyzing current and previous quotes, for working with indicators, functions for managing trading positions, etc.
What programs can be written in MQL4?
The MQL4 programming language allows you to create six types of programs:
- Advisor
Automatic trading systemThe Expert Advisor is capable of working 24 hours a day, 7 days a week. The Expert Advisor is able to function around the clock, steadily bringing profits.
- Custom indicator
This is an indicator created in addition to the already existing indicators.
- User script
A program that will be executed at the trader's request only once. Can replace the daily actions when working with the terminal.
- Function Library
A set of functions for specific tasks.
- Header file (*MQH)
Creating a header file with *MQH extension.
- Generating from a template
Creating a program from a ready-made template.
How to Program in MQL4 in MetaTrader 4?
MQL 4 is easy to learn and very similar to other programming languages, so if you have studied programming before, it won't be hard to master MQL.
To start writing your own program in the MetaTrader4 terminal, run the MQL MetaEditor. You can do it in three ways :
- First way
Select MetaQuotes Language Editor in the service menu.
- The second way
Press the F4 key.
- The third way
Use the corresponding button on the standard toolbar.
In the editor window that opens through the menu "File" - "Create" you can choose the type of program you want to create, and then proceed to writing it.
MQL 4 programs on our website
Useful articles on the topic
- Creating an MQL4 Trading Expert Advisor: Opening New Perspectives in Trading at
- Independent software modification for MetaTrader4
- Your undocumented features when writing EAs in MQL4
- Creating a trading robot: from A to Z
- Battle of the Robots: Buy Expert Advisor or Free Download?
- How to install an Expert Advisor in MetaTrader 4 in 6 steps