https://faq.i3wm.org/questions/Frequently asked questions and answers about the i3 window managerenCopyright i3, 2012Tue, 26 May 2015 19:36:08 +0000https://faq.i3wm.org/question/6020/how-to-detect-when-a-container-is-set-to-float/Hi all, I would like to act upon any window that is set as floating so I can be able to set border as normal when in floating mode and 1pixel when in tabbed mode. As for now I am able to do this but only for selected applications via `for_window [...]`, however I would like to extend this behaviour for any and all applications. Regards. Tue, 26 May 2015 15:11:11 +0000https://faq.i3wm.org/question/6020/how-to-detect-when-a-container-is-set-to-float/https://faq.i3wm.org/question/6020/how-to-detect-when-a-container-is-set-to-float/?answer=6022#post-id-6022 As Airblader mentioned already, you can do this as following using [i3subscribe](https://faq.i3wm.org/question/5721/how-do-i-subscribe-to-i3-events-using-bash-easily/?answer=5722#post-id-5722): #!/bin/bash i=0 i3subscribe window dump | grep --line-buffered -e "^window:floating" -e "floating' => 'user_" | sed -u 's/^\s*//' | \ while read -r line; do [ "$line" == "window:floating" ] && i=1 && continue [ "$i" == 1 -a "$line" == "'floating' => 'user_on'," ] && i3-msg border normal [ "$i" == 1 -a "$line" == "'floating' => 'user_off'," ] && i3-msg border 1pixel i=0 doneTue, 26 May 2015 19:36:08 +0000https://faq.i3wm.org/question/6020/how-to-detect-when-a-container-is-set-to-float/?answer=6022#post-id-6022https://faq.i3wm.org/question/6020/how-to-detect-when-a-container-is-set-to-float/?answer=6021#post-id-6021Subscribe to the IPC window event: [i3 IPC #window](http://i3wm.org/docs/ipc.html#_window_event)Tue, 26 May 2015 15:55:10 +0000https://faq.i3wm.org/question/6020/how-to-detect-when-a-container-is-set-to-float/?answer=6021#post-id-6021