xvkbd has an argument that allows you to target a specific window. This means that all that is needed to make this an ideal solution is to have something that can tell the script the ID of the window that the mouse is currently over.

xwininfo is a good tool to use to get information about a window, but it is limited in that it requires the window to be clicked on in order to get the details. So, a different solution is required.

wininfo shows the full details of any window you put your mouse over, but it is a GUI application and not a command-line tool (at least, I can’t find any command-line access for it). This means that it can’t work either.

To my knowledge there isn’t a program that command-line access to getting details of the window that the mouse is over without requiring some additional interaction by the user.

This is really bugging me, as I often have some small windows (like the calculator or a terminal) open over a fullscreen browser window. I used to be able to navigate back and forward in the browser while keeping focus on the small windows. This is not possible any more after applying this fix. Every time you wish to go back or forward in the browser, you need to first focus its window, hiding the smaller windows behind it.

Do you happen to have a solution for this problem? Something like making xvkbd send the keystrokes to the window under the mouse cursor instead of the focused window.

Thanks for the howto!