Logify - Log management library - MetaTrader 5 library | Forex indicator download - MT4/MT5 resources

blogger | 243 reads | 0 comments | 2026-06-18

Logify is a logging library for MQL designed to simplify debugging, tracking and monitoring of EAs and indicators. It provides structured, customizable and organized logging directly on the chart or terminal, and supports log levels, flexible formats and multiple handlers. A lightweight and elegant solution that can be easily integrated into your MQL project.

📦 Features

🚀 Installation

 MQL5/include/

Include Logify in your EA, indicator or script:

 #include

It can be installed using Git, just visit the repository and follow the steps.

🔧 Quick Start Example

Simple example using default settings:

 //+------------------------------------------------------------------+
//|Import |
//+------------------------------------------------------------------+
#include
CLogify logic; //+------------------------------------------------------------------+
//|Expert initialization function |
//+------------------------------------------------------------------+
Integer initialization ()
  {
//--- Sample log Logify.Debug( "Initialization Start" );
  Logical.Info( "Account balance is normal" );
  Logicalize. Alert ( "Profit Reached" );
  Logify.Error( "Failed to send order" , "Command" , "Reason: No money" );
  Logify.fatal( "serious error: invalid input parameter" ); //--- return ( initialization successful );
  } //+------------------------------------------------------------------+

Advanced example with custom handler settings. In this example, we save logging to a file and graph annotation. Customized settings for everyone.

//+------------------------------------------------------------------+
//|Import |
//+------------------------------------------------------------------+
#include
CLogify logic; //+------------------------------------------------------------------+
//|Expert initialization function |
//+------------------------------------------------------------------+
Integer initialization ()
  {
//--- Configure comment handler MqlLogifyHandleCommentConfig config_comment;
  config_comment.size = 10 ;
  config_comment.frame_style = LOG_FRAME_STYLE_SINGLE;
  config_comment.direction = LOG_DIRECTION_UP;
  Configuration comment.title = "My Expert" ;

//--- Create and configure comment handler CLogifyHandlerComment *handler_comment = new CLogifyHandlerComment();
  handler_comment.SetConfig(config_comment);
  handler_comment.SetLevel(LOG_LEVEL_DEBUG);
  handler_comment.SetFormatter( new CLogifyFormatter( "{date_time} [{levelname}]:{msg}" , "hour:minute:second" ));
  
//--- Configuration file handler MqlLogifyHandleFileConfig file configuration;
  file_config.CreateDateRotationConfig( "My Expert" , "Log" ,LOG_FILE_EXTENSION_LOG, 10 , 100 , CP_UTF8 );
  
//--- Create and configure the file handler CLogifyHandlerFile *handler_file = new CLogifyHandlerFile();
  handler_file.SetConfig(file_config);
  handler_file.SetLevel(LOG_LEVEL_DEBUG);
  handler_file.SetFormatter( new CLogifyFormatter( "{datetime}[{level name}]:{msg}({filename}|{origin}|{function})" , "hour:minute:second" ));
  
//--- Additional handler Logify.AddHandler(handler_comment);
  Logify.AddHandler(handler_file);

//--- Sample log Logify.Debug( "Initialization Start" );
  Logical.Info( "Account balance is normal" );
  Logicalize. Alert ( "Profit Reached" );
  Logify.Error( "Failed to send order" , "Command" , "Reason: No money" );
  Logify.fatal( "Fatal error: Invalid input parameter" );
  
//--- return ( initialization successful );
  } //+------------------------------------------------------------------+