This thread is a bit dated, but I thought I'd add in case anyone needs to find out whether the system is idle. Essentially, you can check the IO Reads from the process csrss.exe, session 1.
Global $lastIOReads, $currentIOReads
Global $MINUTES = 1000*60
Global $sleepTime = Round(1*$MINUTES,0)
pauseIfNotIdle()
Func pauseIfNotIdle()
if $lastIOReads='' Then ; checks to see if this is the first call of this function
$lastIOReads = _getIOReads() ; sets initial value
Sleep($sleepTime) ; sleep, to look for idle
$currentIOReads = _getIOReads() ; wake & check whether there has been any user input
Else
$lastIOReads = $currentIOReads ; not the first call, set last IO reads = the most recent
$currentIOReads = _getIOReads() ; set IO reads to current
EndIf
While $lastIOReads<>$currentIOReads ; if there has been a change in the IO reads, do the loop
Sleep($sleepTime)
$lastIOReads = $currentIOReads ; set last IO reads = the most recent
$currentIOReads = _getIOReads() ; set IO reads to current
WEnd
EndFunc ; pauseIfNotIdle()
Func _getIOReads()
Local $objWMIService = ObjGet("winmgmts:\root\CIMV2")
Local $colItems = $objWMIService.ExecQuery('SELECT * FROM Win32_process where name="csrss.exe" and sessionId=1') ; csrss is the Windows input exe; session 1 is console, which is the active session
If IsObj($colItems) then ; csrss will change its IO Reads with input to the keyboard or mouse
For $objItem In $colItems
Return $objItem.ReadOperationCount ; get IO reads
Next
Else
Return False
Endif
EndFunc ; getIOReads()
