- http://dokupuppylinux.co.cc/programs:screen_utilities
type xdelimitarea to start
press q on keyboard to quit
html manpage is available via console, type man xdelimitarea
xdelimitarea is an X Windows program that provides a non-intrusive way of finding out the location (with respect to the root window) and dimensions of an arbitrary rectangular area on a computer screen. This tool might be helpful for GUI or Web designers who are concerned with layout issues.