Activity on computers

Hi all,

I have a motion sensor in my office. This turns on and off the lights. In this office, there are two computers: one for my wife, one for me. When we are working, we do not move around enough for the sensor to register. So, we'd be working in the dark all of a sudden.

How about indigo has a way to see if the screen saver is active on both computers? To start with an easy one, can this be done on the computer that runs the server (my own computer)? And more complicated, how about on my wife's computer?

All help and ideas are appreciated!

That's a really interesting question. I don't know the answer, but there may be something that you can do with Applescript (i.e., set a variable to true/false depending on whether the screen saver is on/off.)

Good luck!

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x=int(subprocess.check_output('ioreg -w 0 -c IODisplayWrangler -r IODisplayWrangler'.split()).split("IOPowerManagement")[1].split("DevicePowerState")[1].split(",")[0].strip('"="'))

sets x to:
4=on
1=sleep (not tested)

Karl
=====


some more background:
strip .. split . removes all the other info delivered by ioreg...

paste

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ioreg -w 0 -c IODisplayWrangler -r IODisplayWrangler

into a terminal window and you will get:

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karlMacBook:~ karlwachs$ ioreg -w 0 -c IODisplayWrangler -r IODisplayWrangler
+-o IODisplayWrangler  <class IODisplayWrangler, id 0x100000302, registered, matched, active, busy 0 (0 ms), retain 10>
  | {
  |   "IOProbeScore" = 0
  |   "CFBundleIdentifier" = "com.apple.iokit.IOGraphicsFamily"
  |   "IOMatchCategory" = "IOGraphics"
  |   "IOClass" = "IODisplayWrangler"
  |   "IOProviderClass" = "IOResources"
  |   "IOGeneralInterest" = "IOCommand is not serializable"
  |   "IOGraphicsIgnoreParameters" = {"aupc"=Yes,"auph"=Yes," bpc"=Yes,"aums"=Yes,"aupp"=Yes}
  |   "IOUserClientClass" = "IOAccelerationUserClient"
  |   "IOPowerManagement" = {"CapabilityFlags"=32832,"MaxPowerState"=4,"ActivityTickles"=25659,"DevicePowerState"=4,"IdleTimerPeriod"=224000,"TimeSinceLastTickle"=21,"IdleTimerElapsedTime"=119451,"CurrentPowerState"=4}
  |   "IOGraphicsPrefsParameters" = {"thue"=Yes,"pscn"=Yes,"vbst"=Yes,"tbri"=Yes,"oscn"=Yes,"tsat"=Yes,"cyuv"=268435456}
  |   "IOResourceMatch" = "IOKit"
  | }
  |
  +-o IOAccelerationUserClient  <class IOAccelerationUserClient, id 0x1000003b8, !registered, !matched, active, busy 0, retain 5>

 

where CurrentPowerState =xx in line IOPowerManagement = .. should be the power state of the monitor

Here a bit more straight forward including an update of an existing variable "screenSaverState"

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import simplejson as json
import subprocess

# ioreg creates a list of states,  grep selects the wanted line
x=subprocess.Popen('ioreg -w 0 -c IODisplayWrangler -r IODisplayWrangler | grep IOPowerManagement',shell=True,stdout=subprocess.PIPE,stderr=subprocess.PIPE).communicate()[0]

# split()[1] selects the {"xx"=4,...} string ,   replace() makes it a json compatible string
y=x.split(" = ")[1].replace("=",":")

## this makes z a dict  and z["state"] gives the value wanted.
z=json.loads(y)

# at last update the variable in indigo, must already exist
indigo.variable.updateValue("screenSaverState",str(z['CurrentPowerState']))


put this code into an action of a schedule that runs e.g. once a minute and your variable "screenSaverState" will contain the state of your monitor

Karl

get Status of monitor active .. asleep/ off

put the attached code into a schedule and run it every minute. the variable "screenSaverState" is updated and a log file entry is made (if you uncomment that line.)

Code: Select all

import simplejson as json
import subprocess

# ioreg creates a list of states,  grep selects the wanted line .... /usr/sbin/ is needed as the shell has no paths defined.
x=subprocess.Popen('/usr/sbin/ioreg -w 0 -c IODisplayWrangler -r IODisplayWrangler | grep IOPowerManagement',shell=True,stdout=subprocess.PIPE,stderr=subprocess.PIPE).communicate()[0]

##indigo.server.log(" monitor status:"+str(x))  # for debugging if needed

# split()[1] selects the {"xx"=4,...} string ,   replace() makes it a json compatible string
y=x.split(" = ")[1].replace("=",":")

## this makes z a dict  and z["state"] gives the value wanted.
z=json.loads(y)

# at last update the variable in indigo, if it does not exist, we will create it
try:
    indigo.variable.create("screenSaverState")
except:
   pass
indigo.variable.updateValue("screenSaverState",str(z['CurrentPowerState']))

## uncomment if you like to enter state into logfile
#indigo.server.log(" monitor status:"+str(z['CurrentPowerState']))

this one creates the variable if it does not exists and writes into log file if you want it.

Great code-snipped Karl!

But this does only work on a device Indio running, right? I do have Indio on a macmini with no screen... and would like to check if my MacBook Air or iMac is active. Could the Indigo-Server check these devices over the network?