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@@ -4,6 +4,102 @@ NAME PRONUNCIATION ɹˈaɪɐrk (depending on dialect) +SYNOPSIS + radharc [OPTIONS]... + + The -l option is mandatory. + +OPTIONS + -l LATITUDE:LONGITUDE + Tell radharc where you are. This is mandatory. + The values are measured in degrees and in the + GPS (you probably do not have too care about that, + the differences between the systems should not + be significant another), and must be in decimal. + + Reminder for Americans (particularly US Americans), + you are an the western hemisphere, not the eastern, + thus your latitude is negative. If you experience + weird colour temperatures, 100 % of the times it is + because you forgot the minus sign. But no need to + feel stupid, it is a really common mistake. + + -t DAY:NIGHT + Select colour temperature to use during full daytime + and full night. This should be a integer. Do not + include the unit (the 'K'). + + -t TEMPERATURE + Select temperature to use. The program will exit + when it is done setting the temperature. The + natural colour temperature is 6500 K ('-t 6500'). + + -t +DELTA + Increase the colour temperature by DELTA Kelvin. + + -t -DELTA + Decrease the colour temperature by DELTA Kelvin. + + -T TEMPERATURE + Temperature that shall be used when the program + is disabled (via SIGUSR1). + + -p Print the current colour temperature. + + -n Set the temperature immediately, do not transition. + + -N Do not transision when exiting, reset and exit + immediately on exit. + + -o Set the colour immediately, and exit. + + -x Ignore the current calibrations on the monitors. + + -s SECONDS + The start and exit transitions shall take SECONDS + seconds. This may be a floating point number. + + -i + Apply negative image filter. Radharc will detect + which monitors have this one when it starts. + + -h PATHNAME + Use a hook script for events. + + -b + Broadcast events with bus. + + -e EDID + Select monitor to use by its EDID. + + -m NUM + Select monitor to use by its global index. + + -m SCREEN:NUM + Select monitor to use by its index without + a screen or graphic card. The later is for when + not inside a graphics environment. + +SIGNALS + SIGHUP + Perform an online update to a newer version. + + SIGUSR1 + Enable or disable radharc. + + SIGUSR2 + Toggle negative image filter. Enable on all + monitors if it is enable on some but not all. + + SIGRTMIN+N + Toggle negative image on monitor N, if monitors + have been selected manually, it will be in the + order they where selected. + +NOTES + I suggest using a local script named radharc that + sets all options for you. + SEE ALSO redshift(1), blueshift(1), redshift-adjust(1), nightshift(1) |