How to intercept the window?

Question

bash

I wrote a small utility called by hotkeys (bash + zenity + xsel), whose task is to search, store, insert snippets. And just at the moment of an insertion there were problems. I can send the necessary data set to the buffer, and then insert it manually.
But I would like to implement the following functionality:
- while calling the script using a hot key - get the value of the window that was active (previous window),
- after successful completion of the work - find the window and transfer data to it, i.e. perform an insert operation.
Any ideas where to dig and what packages can help with this?

Answer 1

see
www.deanbodenham.com/learn/tmux-copy-pasting.html
or
https://superuser.com/questions/402403/gnu-screen-...
already knows how