Is there a gnome or KDE or Xorg version of wall for gui

[Fernando Cassia]

On Wed, Jul 15, 2009 at 7:50 PM, Leslie Satenstein<lsatenstein at yahoo.com> wrote:
> From what I note, wall is geared to terminals that function in ascii mode.
>
> Is there a wall command for Gnome, KDE, or Xorg, so that I can alert a gui
> user about some event?

http://en.wikipedia.org/wiki/Zenity
http://linux.byexamples.com/archives/259/a-complete-zenity-dialog-examples-1/

FC