--exit Causes the screensaver to exit gracefully
-q,--query
Query the state of the screensaver
-t,--time
Query the length of time the screensaver has been active
-l,--lock
Tells the running screensaver process to lock the screen immediately
-c,--cycle
If the screensaver is active then switch to another graphics demo
-a,--activate
Turn the screensaver on (blank the screen)
-d,--deactivate
If the screensaver is active then deactivate it (un-blank the screen)
-p,--poke
Poke the running screensaver to simulate user activity
-i,--inhibit
Inhibit the screensaver from activating. Command blocks while inhibit is active.
-n,--application-name
The calling application that is inhibiting the screensaver
-r,--reason
The reason for inhibiting the screensaver
-V,--version
Version of this application