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Script Calling Library for MT4 Build 600 and Later
Info
The Script Calling Library for MT4 Build 600 and Later is a Library for MetaTrader 4 that this is a script calling library for mt4 build 600 and later. This library is for calling scripts from your indicator and expert advisors.
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 Script Calling Library for MT4 Build 600 and Later
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
This is a script calling library for MT4 build 600 and later.
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: cequity hst bar - another powerful library for MetaTrader 4 traders.
This is a script calling library for MT4 build 600 and later.This library is for calling scripts from your indicator and expert advisors.
Also recommended: binary options strategy library - similar library with strong performance on MetaTrader 4.
On earlier builds of MT4, this can be achieved with this method. Around build 509, the message parameter may have been changed.
Wparam is 0x11, and lparam is the ordinal of the navigator tree view, starting from 0 (the top script is 0).
This library includes a DLL and an MQL class library.
Source:
The source is hosted on GitHub (codebase version might be outdated, check here for new releases).
If you are in trouble:
Bug reports are welcome on GitHub issue.
How to use:
Add the following include line to your indicator or expert advisor:
include scriptcaller.class.mqh
Add the following code to initialize/deinitialize class instance.
scriptcaller* g_scriptcaller = null
int oninit()
{
g_scriptcaller = new scriptcaller()
return init_succeeded
}
void ondeinit(const int reason)
{
if (g_scriptcaller) {
delete g_scriptcaller
}
Finally, put the following code to call a script:
g_scriptcaller.callscript("scriptname"); do not end with .mq4
If the script shows an input dialog and you want to close it automatically, call as follows.
g_scriptcaller.callscript("scriptname", true); if the 2nd parameter is true, the dialog will be closed automatically.
Samples:
Under MQL4\indicators, there are 2 sample indicators that call scripts under MQL4\scripts.
License:
This software is licensed under the GNU General Public License version 3.
Update history:
March 6, 2026: v0.1.1: fix cannot load DLL on Windows XP and Wine
February 27, 2026: v0.1.0: initial release version
You may also like: sh a256, sh a384 and sh a512 + hm a c - 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.