Intercepting all orders with full data in MT4

External question — Stack Overflow Stack Exchange Author: Woody1193 Original post: https://stackoverflow.com/questions/75358663 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. I'm trying to write a trade copier for MT4. I have already written one for MT5, but the issue I'm having with translation is in intercepting active orders. In MT5, this is relatively simple: void OnTradeTransaction(const MqlTradeTransaction &trans, const MqlTradeRequest &request, const MqlTradeResult &result) { // Code goes here } As shown in the MQL5 documentation , this event intercepts all orders sent from the client and accepted by a trade server. Looking at the MQL4 documentation, however, I don't see any easy way of doing this. The closest I could get would be to iterate over all the orders by doing this: for (int i = 0; i < OrdersTotal(); i++) { if (!OrderSelect(i, SELECT_BY_POS)) { // Error handling here } // Do stuff with this order } My understanding is that this code also gets all open orders. However, the issue I'm having is that there are key pieces of information that I cannot determine on these orders: Slippage Position-by (for close-by orders) Action type (close, close-by, delete, modify, send). Although this could be inferred from the fields populated on the order. In my mind, I could then go and intercept the orders when they're generated (i.e. wrap OrderClose , OrderCloseBy , OrderDelete , OrderModify and OrderSend ) and pull the relevant information off of the orders that way. But that still doesn't cover the case where the user enters an order manually. Is there a way I can intercept all orders data without losing information?