LEVEL_CRITICAL
log level for critical warning messages, see func@GLib.critical. This level is also used for messages produced by func@GLib.return_if_fail and func@GLib.return_val_if_fail.
log level for critical warning messages, see func@GLib.critical. This level is also used for messages produced by func@GLib.return_if_fail and func@GLib.return_val_if_fail.