linuxbashimage

Screenshot specific windows?

Is there a way to screenshot specific windows in bash, in such a way that if it's unfocused it will still screenshot it?

sleep 10
while true;
    do 
        scrot ~/Screenshots/"$(date +"%d-%m-%Y_%H:%M:%S").png" 
        play ~/.custom-stuff/pew.mp3 vol 0.2 > /dev/null 2>&1
        echo Shot time: $(date +"%d-%m-%Y_%H:%M:%S")
        sleep 30
done

I want to create a time-lapse video of a specific program (game).

Maybe import -window id could be used instead of scrot? But I still don't understand how it works...

Solution

  • I am not 100% sure if this would work in every DE, but in mine seems to work.

    What I did was to run the following line in a terminal:

    import -window $(xdotool getwindowfocus) -pause 5 asd.png & for i in {1..6}; do echo $i; sleep 1; done

    Then switched to another window and waited for 10 seconds and I could see the image: enter image description here

    Of course, you can first get the window ID by running xdotool in your desired window then adapt the bash command accordingly.