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EX5 Signal Copier for MT5 Documentation

14 February 2026, 08:38
Rajesh Kumar Nait
Rajesh Kumar Nait
0
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Product URL : https://www.mql5.com/en/market/product/165363


 Overview

The EX5 Signal Copier Library converts MT5 trade events into structured signals.
Your EA reads these signals and decides what to do.

Architecture

Trade occurs ↓ OnTradeTransaction() ↓ Library processes event ↓ Signal added to queue ↓ Your EA reads signal ↓ You execute logic

 Installation

  1. Copy library:

/MQL5/Libraries/EX5_Copier.ex5

  1. Include in your EA:

#import "..\\Libraries\\EX5_Copier.ex5"

  1. Attach EA to chart

Initialization

Call in OnInit() :

   SCL_Init(
   sourceMagic,
   sourceSymbol,
   enableCopy,
   copyMagic,
   lotMultiplier,
   slippage,
   logToFile,
   printToExperts,
   verboseMode
);
Parameters

Parameter Description
sourceMagic Filter trades by magic (0 = all)
sourceSymbol Filter symbol ("" = all)
enableCopy Enable built-in copier
copyMagic Magic number for copied trades
lotMultiplier Lot scaling
slippage Allowed slippage
verboseMode Debug logs

Event Handling

You must forward trade events:

 void OnTradeTransaction(...) { SCL_OnTradeTransaction(trans, request, result); }


Polling (Backup)

 void OnTimer() { SCL_Poll(); }

Reading Signals

 while(SCL_GetSignalCount() > 0) { SCL_ReadSignal(...); }


Signal Fields

Field Meaning
action BUY / SELL / CLOSE
event_type OPEN / MODIFY
symbol Instrument
volume Lot size
price Entry price
sl / tp Stop loss / Take profit
ticket Position ID

Actions

Action Meaning
SCL_ACTION_BUY Buy position
SCL_ACTION_SELL Sell position
SCL_ACTION_CLOSE_POSITION Close
SCL_ACTION_MODIFY_POSITION SL/TP change
SCL_ACTION_PARTIAL_CLOSE Partial close
 EXAMPLES


Example 1 — Simple Copier

        if(action == SCL_ACTION_BUY)
{
   SCL_CopyBuy(symbol, volume, sl, tp, "Copy");
}

if(action == SCL_ACTION_SELL)
{
   SCL_CopySell(symbol, volume, sl, tp, "Copy");
}

Example 2 — Reverse Trading

 if(action == SCL_ACTION_BUY) { SCL_CopySell(symbol, volume, tp, sl, "Reverse"); }

Example 3 — Risk Management

 if(volume > 1.0) volume = 1.0; SCL_CopyBuy(symbol, volume, sl, tp, "RiskManaged");


Example 4 — Filter by SL/TP

 if(sl == 0 || tp == 0) return;

Example 5 — Send to External API (Binance) 
        if(action == SCL_ACTION_BUY)
{
   orderMarket("BUY", symbol, volume, price);
}

Example 6 — Limit Orders

 if(action == SCL_ACTION_BUY_LIMIT) { PlaceLimit(symbol, volume, price); }

Example 7 — Close Sync

 if(action == SCL_ACTION_CLOSE_POSITION) { CloseExternalTrade(ticket); }


Utility Functions

 SCL_GetActiveOrderCount(); SCL_GetActivePositionCount(); SCL_GetMappingCount();

 Cleanup

void OnDeinit()
{
   SCL_Deinit();
}

 Best Practices

  • Always call SCL_OnTradeTransaction

  • Use polling as backup

  • Process signals in loop

  • Avoid heavy logic inside loop

  • Enable verbose mode for debugging

 Debugging

Enable:

 Inp_VerboseMode = true; Inp_PrintToExperts = true;

 Advanced Use Cases

  • Multi-account copier

  • Hedging systems

  • Grid replication

  • Trade journaling

  • Prop firm trackers

  • MT5 → Crypto bridge

Demo Script with examples attached



Files:
EX5_Copier_Demo.mq5  30 kb
#mt5 copy trade