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CDown Load History class
Info
The CDown Load History class is a Library for MetaTrader 5 that the cdownloadhistory class provides the methods of historical data downloading in two modes: "visual" and "silent". 1.
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 CDown Load History class
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
The CDownLoadHistory class provides the methods of historical data downloading in two modes: "visual" and "silent".
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: History Loader - another powerful library for MetaTrader 5 traders.
The CDownLoadHistory class provides the methods of historical data downloading in two modes: "visual" and "silent".
1. Visual mode
Also recommended: Check History - Check and load history function - similar library with strong performance on MetaTrader 5.
The example of use of this mode is downloadhistoryvisualmode.mq5.The "history download mode" input parameter can be one of two modes: "current symbol" or "all symbols from Market Watch window":
For the "All symbols from Market Watch window" mode, it will show two progress bars:
For the case if the "current symbol" mode is selected, the single progress bar will be shown:
It prints the results in "Experts" tab of "Toolbox" window:
2. Silent mode
The result of downloading is availiable as a return code. The silent mode can be useful in programs, where visualization is not needed. See example in downloadhistorysilentmode.mq5 script.
It uses the CProgressBar class, described in .
You may also like: CComment Class - 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.