Easy Canvas (i Canvas)
Info
The Easy Canvas (i Canvas) is a Library for MetaTrader 4 that the library and icanvas class simplify writing programs using canvas. Here is an example of a simple indicator using this library.
Usage
This tool is typically used for enhancing chart analysis and decision making.
Platform
This Library works exclusively on MetaTrader 4 (both build 600+ and newer versions).
Setup
Place the downloaded file in MQL4/Libraries folder via File ? Open Data Folder in MetaTrader 4.
How to Install and Use Easy Canvas (i Canvas)
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 library and iCanvas class simplify writing programs using Canvas.
Typical Use Case
This Library excels in automated trading and technical analysis on MetaTrader 4.
Compatible Platform & Setup
This Library works on MetaTrader 4. Place the file in the MQL4/Libraries folder and restart the terminal.
Description & Settings
Related: Easy Object - another powerful library for MetaTrader 4 traders.
The library and iCanvas class simplify writing programs using Canvas.
Here is an example of a simple indicator using this library.
In this example, the indicator body features no function for processing OnChartEvent events. But it may also be present.
Also recommended: MQ L Easy - similar library with strong performance on MetaTrader 4.
struct Window:iCanvas class:
If you do not need an instance of the Canvas class for the full window, you can delete it and (or) change it to a partial window.
For example:
You can also create new instances of the class and initialize them at the time of creation.
For example:
Important note: Since by default, the color format with transparency COLOR_FORMAT_ARGB_NORMALIZE is used, then when specifying the color, you must take into account the high byte of transparency.
If you use color names, for example, clrRed, then the color will be absolutely transparent because the transparency byte will be 0.
Therefore, you must use the ColorToARGB function (for example, ColorToARGB (clrRed))
or specify the color explicitly with non-zero transparency:
-for example, 0xFFAABBCC (Hexadecimal color representation),
where:
FF -byte of transparency,
AA - is red bytes,
BB - is green bytes,
CC - is blue bytes.
P.S.: This library was developed for MQL5 and ported from MQL5 code. Therefore, for MQL4 it is not optimal.
You may also like: Easy to use Hedging Class - excellent alternative for library users on MetaTrader 4.
⚠ 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.