is there any way to switch off qDebug() messages from command line ?

[RahibeMeryem]

Hi,

What is the best way to switch on / off (print shell or not) qDebug() messages ? can we do this as and argument when we starting to application ?

Best

[mrjj]

Hi
Im not sure there is a commandline as i have only seen compile time switch.
However, you can use
https://doc.qt.io/qt-5/qtglobal.html#qInstallMessageHandler
and add a variable to control if you print it or not.

[KroMignon]

@RahibeMeryem You can switch off all debug string with enviroment variable QT_LOGGING_RULES .

QT_LOGGING_RULES="*.debug=false;"

Then start your application.
You can do this in batch / shell script before starting your application. Or in application with adding:

qputenv("QT_LOGGING_RULES", "*.debug=false;");

[RahibeMeryem]

@KroMignon thanks a lot working like a charm..

Best