Trade Classes from MT5 for MT4
This tool for MetaTrader 4 is specifically engineered to streamline your trading operations. This library provides a collection of modular, reusable code. It is utilized by developers to organize common functions, allowing for the integration of complex logic across multiple Expert Advisors, indicators, or scripts without the need for code duplication.
How to Setup and Use Trade Classes from MT5 for MT4
1. Storage: Place library files in the MQL/Libraries directory to ensure they are accessible to your projects.
2. Implementation: Include the library in your code using the #import directive, ensuring you match the exact function names and parameters.
3. Compilation: Ensure the library is present in the directory before you compile your main EA or script, as the compiler links them during this phase.
4. Management: Keep libraries organized in sub-folders if you manage many custom functions to maintain a clean project structure.
Frequently Asked Questions
Q: What is a library file used for? A: Libraries store reusable code modules, allowing you to centralize common logic used by multiple EAs or indicators.
Q: Is a library executable? A: No, libraries are non-executable files containing functions; they must be imported into an EA, indicator, or script to function.
Q: Can I update a library while the platform is running? A: You should compile your EA or script after updating a library to ensure the latest code changes are integrated.
Description & Settings
In the process of developing a program for copying positions between accounts, it was necessary to develop essentially the same code for MT5 and MT4. The differences were only in the functions of performing trading operations. Therefore, several classes from the MT5 standard library were rewritten to work in MT4.
When using this library, it will ideally be possible to compile a program from MT5 with a compiler in MT4 so that it can work in MT4.
But there are two important limitations:
The program must not use any classes and libraries from MT5 that are not in MT4. For example, if CHashMap is used, then you will either have to abandon it, or also transfer it to MT4
All trading operations must be performed only through the CTrade class, all operations for obtaining market information - through the CPositionInfo, COrderInfo, CSymbolInfo classes
