Screensaver?

[Craig Emery <craig emery 3glab com>]

Dear All,

I know this is more X windows than GTK+ but is there anyway that I can 
use GTK+ to tell me when the screensaver is activated / deactivated?
Other details like how long it will wait after no events before 
activation, and has the monitor been "powersaved" would be **real** nice 
but are not strictly required.

TIA

Craig.