Package: x11-utils Version: 7.5+3 Severity: wishlist File: /usr/bin/xwininfo We see xwininfo: Please select the window about which you would like information by clicking the mouse in that window. The problem is, what if we want to get info about a window that has made itself unclickable for some reason. Doing xwininfo -h should say how to get a list of ids or names for use with -id or -name.