How to start with MQL5 - page 48

[Sergey Golubev]

Introduction to MQL5 (Part 39): Beginner Guide to File Handling in MQL5 (I)

In this article, we'll look at how MQL5 handles files, where files are kept on your computer, and how to open, read from, write to, and close them correctly. Practical use cases, including data analysis, strategy logging, configuration storage, and data exchange among various MQL5 programs, will also be examined. We will take a project-based approach, as is customary in this series. Instead of studying file handling separately, we will use it immediately in a real-world project. We will write an MQL5 script that functions as a basic trading log in this article. The script will automatically create a file and record account history information, including trade ticket, symbol, order type, lot size, open time, open price, stop loss, take profit, closing time, close price, profit in dollars, and trade result, when it is activated.