Interchange
Info
The Interchange is a Library for MetaTrader 5 that why this is needed:this class facilitates data exchange between your programs, especially useful when creating products for the market or when system dlls are not preferred. For other connection scenarios, there are alternative methods available.
Usage
This tool is typically used for enhancing chart analysis and decision making.
Platform
This Library works exclusively on MetaTrader 5 (both build 600+ and newer versions).
Setup
Place the downloaded file in MQL5/Libraries folder via File ? Open Data Folder in MetaTrader 5.
How to Install and Use Interchange
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.
What this tool does
Why this is needed:This class facilitates data exchange between your programs, especially useful when creating products for the market or when system DLLs are not preferred.
Typical Use Case
This Library excels in automated trading and technical analysis on MetaTrader 5.
Compatible Platform & Setup
This Library works on MetaTrader 5. Place the file in the MQL5/Libraries folder and restart the terminal.
Description & Settings
Related: mq l easy - another powerful library for MetaTrader 5 traders.
Why this is needed:This class facilitates data exchange between your programs, especially useful when creating products for the market or when system DLLs are not preferred.
Also recommended: xml parser for metatrader 4/5 - similar library with strong performance on MetaTrader 5.
For other connection scenarios, there are alternative methods available.
The exchange mechanism employs simple structures for seamless data transfer.
Usage options:
- Transfer data from an expert to an indicator or another expert.
- Create an indicator that displays information across multiple windows or the main window and subwindow.
- Visualize calculated values in an expert, where all necessary calculations are performed.
How to work with it:
Here's an example of transferring data from an expert to an indicator.
In the expert:
1.1. Create an instance of the class.
1.2. Set the prefix for global variable names to avoid conflicts with other instances. Ensure a unique name for each.
1.3. Implement the algorithm operation using custom events. Add the following line to the handler:
If the data for transfer is ready (e.g., the exp_data structure), call the method:
1.4. Remember to destroy the class instance during program deinitialization.
In the indicator:
2.1. Create an instance of the class.
2.2. Set the prefix for global variable names, ensuring it matches the source (as in point 1.1).
2.3. Initiate data transfer by calling the getdatastart() method with the ind_data parameter (structure to receive data from the expert).
2.4. Implement the algorithm operation using custom events. Add the following line to the handler:
If the data transfer is complete, the method:
Returns true.
2.5. Destroy the class instance during program deinitialization.
Video with example of operation:
You may also like: Math Utilities - excellent alternative for library users on MetaTrader 5.
Source Code
#property copyright "robotfx"
#property link "https://robotfx.org"
#property version "1.00"
#include <my_struct.mqh>
#include <interchange.mqh>
#property indicator_chart_window
#property indicator_buffers 6
#property indicator_plots 3
#property indicator_label1 "average"
#property indicator_type1 draw_color_line.......
⚠ Limitations & Risk Warning
- This tool is provided for educational and testing purposes only.
- Past performance does not guarantee future results.
- Trading involves substantial risk of loss. Use on a demo account first.
- Results may vary depending on market conditions, broker, and settings.
- We recommend thorough backtesting and forward testing before using with real funds.