Log4mql is an MQL4 (MetaQuotes MetaTrader 4 Language) library for flexible logging to files and the terminal console. It is modeled after the Log4j Java library.
Documentation (GitHub):
Usage in your Code:
CLog4mql::getInstance().error(__FILE__, __LINE__, "Something unexpected happen");
or (for more frequent usage)
CLog4mql* logger = CLog4mql::getInstance(); logger.error(__FILE__, __LINE__, "Something unexpected happen"); logger.info(__FILE__, __LINE__, "Calcumation done"); logger.debug(__FILE__, __LINE__, StringFormat("The result of %s is %d", string1, value1));
Don’t forget at the end of your EA/Indicator/Script:
CLog4mql::release();
or
logger.release();
Directories:
The directory for the log4mql.conf and the log4mql.log files
- Normal mode: <mt4datadir>/MQL4/Files/
- Test mode: <mt4datadir>/tester/files/
Log levels:
You can configure the required log level for output in the config file for each appending file and/or a global default.
- TRACE
- DEBUG
- INFO
- WARN
- ERROR
- CRIT
