Enter the telegram4mql.dll file.
Since this is a niche technical file related to MetaTrader (MQL4/MQL5) and Telegram integration, the post includes both educational content (how to use it) and security warnings (because downloading random DLLs is risky). Blog Post: Automating Forex Alerts – A Deep Dive into telegram4mql.dll Date: October 26, 2023 Category: Trading Automation / MetaTrader Tips
If you’ve been trading with MetaTrader 4 or 5 for more than a week, you know the pain of staring at charts waiting for a signal. What if your robot or indicator could text you instantly on Telegram instead? telegram4mql.dll
This Dynamic Link Library acts as the bridge between the MQL4/5 coding language (used for Expert Advisors) and Telegram’s Bot API. In this post, I’ll explain what it is, how to install it safely, and the critical security checks you must perform first. In simple terms, this DLL allows your MetaTrader code to make HTTP requests to Telegram’s servers. MQL4 cannot natively send a message to a chat app, but by importing functions from this external DLL, it can.
string headers = "Content-Type: application/json\r\n"; string post_data = "\"chat_id\":\"" + chat_id + "\",\"text\":\"" + text + "\""; string result = ""; char post[], res[]; StringToCharArray(post_data, post); int res_code = WebRequest("POST", "https://api.telegram.org/bot" + token + "/sendMessage", headers, 5000, post, res, result); return result; Enter the telegram4mql
Here is a minimal example (no DLL needed):
Disclaimer: I am not affiliated with Telegram or MetaQuotes. Always back up your MetaTrader installation before adding third-party DLLs. What if your robot or indicator could text
Note: You must enable WebRequest in Tools → Options → Expert Advisors → Allow WebRequest for "https://api.telegram.org". telegram4mql.dll is a powerful tool that solves a real problem (instant notifications from MT4). However, in the world of trading automation, convenience should never override security.
If you absolutely need the DLL version for speed or advanced features (like sending files/photos), only download it from the official GitHub repository of a trusted developer. Otherwise, stick to the WebRequest method.
string send_telegram(string token, string chat_id, string text)