Am I logged on? - REXX

Steve Swift wrote:
> In a scheduled task, I'd like to be able to determine if my Windows
> userid (Steve) is actually logged on. By "logged on", I mean having an
> active display, and not in screensaver mode.

I believe the screen saver shows up as a separate PID.

Search the process list for a process ending with .src as the filename.

I do not use a screen saver, but while at a customer site do "C-A-D Enter" to lock my workstation when I am away from my desk. So, there might be situations such as that...

--
Michael Lueck
Lueck Data Systems
http://www.lueckdatasystems.com/

> I believe the screen saver shows up as a separate PID.
>
> Search the process list for a process ending with .src as the filename.
>
> I do not use a screen saver, but while at a customer site do "C-A-D
> Enter" to lock my workstation when I am away from my desk. So, there
> might be situations such as that...

Ah, thank you for jogging an elderly gentleman's memory. I've been here
before, but forgotten the trick. I even recall the chuckle I had with
the "does the light go out when you close the fridge door" aspect of
this problem - you can only test it whilst the screensaver is active, so
how do you see what your code does? (Actually not very difficult)

I don't use a "real" screensaver, but I think what I do use will run as
a task; the "blank screen" saver. I'll start closing the door, and
looking to see if .scr appears. :-)

--
Steve Swift
http://www.swiftys.org.uk/swifty.html
http://www.ringers.org.uk

Steve Swift wrote:
>> Search the process list for a process ending with .src as the filename.
> I don't use a "real" screensaver, but I think what I do use will run as
> a task; the "blank screen" saver.

The "blank" screensaver turned out to be scrnsave.scr — so far, so good.
Then I added 'logonui.exe' to the processes which signify "not logged
on" as that one generates the "Fast User Switching" logon prompt.

--
Steve Swift
http://www.swiftys.org.uk/swifty.html
http://www.ringers.org.uk

Michael Lueck wrote:
> I believe the screen saver shows up as a separate PID.

This worked fine, thanks.

As a bonus, for an extra 10 points, can anyone think of a mechanism that
would tell my REXX when my display had gone into power-saving mode?

My screensaver normally gets there first, and I detect that, but
sometimes I get into low-power mode without the screensaver starting.
I'm obviously not using the PC (may have fallen asleep at the helm) so
this state should count as \logged_on() as well.

--
Steve Swift
http://www.swiftys.org.uk/swifty.html
http://www.ringers.org.uk

Steve Swift wrote:

> As a bonus, for an extra 10 points, can anyone think of a mechanism that
> would tell my REXX when my display had gone into power-saving mode?

Easiest would be some sort of polling loop.

--
Michael Lueck
Lueck Data Systems
http://www.lueckdatasystems.com/