This error typically arises when there is a 32-bit vs 64-bit mismatch. MetaTrader 4 is a 32-bit application, so it requires a 32-bit compiled version of the DLL. If you attempt to use a 64-bit DLL, this error will appear. Always ensure you are using the 32-bit build of telegram4mqldll.
It is crucial to distinguish between the legitimate, single-purpose Telegram4Mql.dll library for MetaTrader and the widespread threat of malicious DLL files.
Use the TelegramSendTextMessage or TelegramGetUpdates functions within your EA or Indicator. Sample code structure (based on):
To use this feature, traders typically follow a specific workflow: telegram4mqldll
: Push notifications for trade executions, price hits, or technical indicator signals. Remote Management
//+------------------------------------------------------------------+ //| Import block for the Telegram 4 MQL functions | //+------------------------------------------------------------------+ #import "Telegram4Mql.dll" string TelegramSendTextAsync(string apiKey,string chatId,string chatText); string TelegramSendText(string apiKey,string chatId,string chatText); string TelegramSendScreenAsync(string apiKey,string chatId,string caption=""); string TelegramSendScreen(string apiKey,string chatId,string caption=""); string TelegramGetUpdates(string apiKey,string validUsers,bool confirmUpdates); #import // ... more EA logic here
Beyond simple text messages, Telegram4MQL offers advanced features that can greatly enhance your remote trading experience. This error typically arises when there is a
If your EA compiles without errors but fails to run, often returning a "cannot load library" message, the issue is almost always related to file placement or MT4's security settings.
This is the most direct and reliable method available today. The developer can use MQL5's native WebRequest() function to send HTTP requests directly to the Telegram Bot API.
A typical workflow might involve:
This error, an exception common in .NET programming, has plagued some users. It typically indicates that the DLL tried to use an object that was null (empty). For example, the DLL might try to read a setting from the registry that does not exist, or the Telegram API might return an unexpected response that the DLL wasn't programmed to handle.
SendPhoto(string chatId, string photoFile) : Sends a screenshot of the current chart.
: Queries the Telegram server for new messages. This enables "remote control" functionality, where an EA can read incoming Telegram commands to modify trades or request account stats. Always ensure you are using the 32-bit build
Send commands from your phone via Telegram to the MT4/MT5 platform (e.g., closing all trades).