bash script, how do i make it so when x process is ended (i close it) it swaps xrandr settings

[tough python]

i want this to execute when i close the process

xrandr --output DP-4 --primary --mode 3440x1440 --rate 120.00 --output HDMI-0 --mode 1920x1080 --rate 60.00 --right-of DP-4
so i can make my primary monitor normal again

[nimble isle]

command-to-execute-process ; xrandr --output DP-4 --primary --mode 3440x1440 --rate 120.00 --output HDMI-0 --mode 1920x1080 --rate 60.00 --right-of DP-4

[tough python]

so this would make it work when i do kill

io dont wanna run the script and it kills it

i wanna make so it when i kill he program ymself by pressing the x button, it runs thes cript

[brave plank]

You can also try pwait

[graceful kestrel]

That should still work. Unless the process stays active in the background after you close it.