FileLog is a simple MQL4 class for flexible logging to files and the terminal console.

Github Repository: https://github.com/RGunning/MQL4Logger

Log File will be saved in:

• <Data folder>\MQL4\Files\
• <Data folder>\tester\files\

Usage

CFileLog* logger = new CFileLog("example.log",WARNING,true);

logger.Error(StringFormat("%s %d %s",__FILE__, __LINE__, "Something unexpected happen"));
logger.Info(StringFormat("%s %d %s",__FILE__, __LINE__, "Calculation Done));
logger.debug(StringFormat("%s %d The result of %s is %d",__FILE__, __LINE__,string1, value1));

Don't forget at the end of your EA/Indicator/Script:

Delete logger;

Log levels:

• TRACE
• DEBUG
• INFO
• WARNING
• ERROR
• CRITICAL

Log functions:

• Trace()
• Debug()
• Info()
• Warning()
• Error()
• Critical()

Example

A working example of the logger in action can be seen in FileLogExample.mq4.

Console:

File: