Object Create And Set
Info
The Object Create And Set is a Library for MetaTrader 5 that the attached *. mqhfile contains functions for creating objects and changing object properties.
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 Object Create And Set
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 attached *.
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: Ext Objects - another powerful library for MetaTrader 5 traders.
The attached
*.mqh
file contains functions for creating objects and changing object properties. It is particularly useful for me when I need to quickly write some test code which creates objects on a chart and/or changes the properties of existing objects.
Also recommended: The class to create the ring buffer - similar library with strong performance on MetaTrader 5.
The other file is a script with a usage example (creates a text label, gradually rotates it by 90 degrees changing the text and its color along the way).I. Functions for creating objects
:
The functions are based on standard functions described in . Major differences from the corresponding standard functions:
added lines for setting tooltips and setting the visibility of objects on different timeframes;
removed lines for creating functions without setting coordinates, prices, anchor points (except for VLineCreate(...) and EventCreate(...));
based on functions for setting (changing) object properties implemented in this library, additional conditions have been added to check the success of setting the properties.
List of functions for creating objects:
II. Functions for setting object properties:
Using , and without specifying a modifier:
Using , and with specifying a modifier:
Additional functions:
III. Usage:
You can use it as an include file or you can just copy certain functions from it to your source code.
If you choose the second way, I think it's better to first use it as an include file. Once you implement all necessary function calls you can remove the include directive (#include...).
Then, the compiler will point out which functions you need to copy from the include file.
Use as an include file:
Save the attached file
ObjectCreateAndSet.mqh
to "
Include
" folder. To do so, you can use the
Navigator
window in
MetaEditor
. In the
Navigator
window, right-click the "
Include
" folder and choose "
Open Folder
".
To use the library in your code, copy the
#include...
line from the beginning of the file and paste it to your source code: The attached script provides an example of including the library.
After that, compile your code. It will allow to see the tooltips for included functions when you start entering their names:
Fig.1. Full name of a function in a tooltip after entering its first few letters
Fig.2. Parameters of a function in a tooltip
By the way, you can you use the
functions list
button on the
MetaEditor
toolbar to quickly view the list of functions used in the current file:
Fig.3. Button for showing the list of functions used in a file
When you press the button, a drop-down list appears. To go to a particular function, click its name in the list.
Fig.4. Pressing the button opens the list of functions in a file (useful to quickly move to a certain function)
Updates:
2015.09.14
: In the
ObDelete()
function, added output of object's name to the Experts tab if there is an error when deleting the object. It facilitates finding errors in the code.
You may also like: Object Emulator - 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.