Using MQL File Handling for Trade Copying and Persistent Logs

Summary

The document introduces file handling in MQL as a way to write price values to local storage. It identifies a file-based trade copier as one possible application, where a program can save information for another process to access.

It also describes using files to retain values temporarily and read them across login sessions, as well as recording custom logs. These are practical purposes for storage in trading software, but the document provides no code, file format, synchronization guidance, or discussion of error handling. It explains the intended uses at a high level rather than teaching a complete implementation.

Key ideas

• MQL programs can write price values to local files.
• Files can support a local trade copier that exchanges data through shared storage.
• Saved values can be read in a later login session.
• Files can store custom logs, though implementation details are not provided.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.