Use Applescript to check if screen is locked on a Mac with Apple silicon?

Question

For years, I've used Applescripts to check if my Mac's monitor is locked (not to be confused with checking if the screen saver is active. I don't have the screen saver lock the screen since I use the screen saver as a giant clock when I'm home and I lock the screen when I leave).

Either the switch to Apple silicon or a Mac OS update has stopped scripts like this from checking if the screen is locked:

set isScreenLocked to do shell script "pmset -g ps | awk 'NR==2{print $2}'"

Scripts like this don't seem to work on Apple silicon either:

set isScreenLocked to do shell script "ioreg -n IODisplayWrangler | grep -i IOPowerManagement"

I'm running Mac OS Sonoma on an M1 Mac studio. How can I use Applescript to check whether or not the screen is locked (again, not to be confused with the screen saver being active)?

Answer 1

[ "$(/usr/libexec/PlistBuddy -c "print :IOConsoleUsers:0:CGSSessionScreenIsLocked" /dev/stdin 2>/dev/null <<< "$(ioreg -n Root -d1 -a)")" = "true" ] && echo 0 || echo 1;

Works on my macOS 15.

Found it here: https://www.reddit.com/r/applescript/comments/det3go/comment/inqowmi/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button