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Binary Flags
Info
The Binary Flags is a Library for MetaTrader 5 that you can use binary flags to minimize bool parameters in a function signature. For example, MQL int size is 32 bits, so you can pack 32 1/0 parameters in a single int flag variable.
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 Binary Flags
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
You can use binary flags to minimize bool parameters in a function signature.
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: Statistical Functions - another powerful library for MetaTrader 5 traders.
You can use binary flags to minimize bool parameters in a function signature.
For example, MQL int size is 32 bits, so you can pack 32 1/0 parameters in a single int flag variable.
Also recommended: Design patterns - Abstract Factory - similar library with strong performance on MetaTrader 5.
Before:After:
BinFlags can be initialized with any integer data type:char, bool, short, int, color, long, datetime.
Your maximum flag length will vary: 1 byte = 8 bits, 2 bytes = 16 bits, etc.
A flag represents a number which has only one '1' bit in any position.
Such numbers are 1, 2, 4, 8, 16, 32, etc. You get it.
Large numbers of this kind look better in hex: 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, etc.
This class works with flags, which follow the rule.
BinFlags must be initialized first. You can overwrite later the internal flags with Write.
You can check, set, reset any number of flags.
Multiple flags should be separated by '|'.
Flag names can be enumerated for convenience.
Example of BinFalgs usage.
Output:
You may also like: Calculate Lot by Percent - excellent alternative for library users on MetaTrader 5.
⚠ 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.