Knowing Linux machine state (Screen Lock/unlock)

[pgbhagat]

Hi,

I am trying to find programatically if a Linux box is screen lock/unlock.

In KDE, i can lock a linux machine using,
kdesktop_lock --forcelock
Once machine gets lock, a process called 'KDesktop_lock' starts running.

In GNOME, i can lock machine using,
gnome-screensaver-command --lock
But there is no way to find whether a machine using GNOME is screen lock or unlock.

I am trying to find what is the command to know state of a Linux machine. State is locked or unlocked?

Help on this will be appreciated...

[Rubberman]

That is a GUI thing, and the fact is that more than one user can have an X-Windows GUI running, such as remote clients running VNC, and each can have a lock on their virtual or physical screen. What is going on with the physical console is irrelevant to other users. This is not like a Windows system where there is only one "user" at a time. So, this is not a state of the system, but only of a single UI, and Linux can have many concurrent users each with their own UI active.