doorknob60/Screenruler — pull request #1 by stevenhoneyman (2014-06-07 23:19:24+00:00)
Title: Changed to using gtk_message_dialog instead of zenity

Your program was exactly what I was looking for, apart from it needing zenity - so I fixed it for you :smile:
It will compile with either Gtk2 or Gtk3 depending on which you prefer.

Signed-off-by: stevenhoneyman