Question

Register-ObjectEvent looks for a object instance in the required parameter InputObject. What is the syntax for an object’s static (Shared) event?

UPDATE: Correct syntax for TimeChanged:

$systemEvents = [Microsoft.Win32.SystemEvents]
$timeChanged = Register-ObjectEvent -InputObject $systemEvents
-EventName 'TimeChanged' -Action { Write-Host "Time changed" }

Unfortunately, the SystemEvents will not be signaled in PowerShell ISE. Here’s a sample using an object’s staic event that works everywhere:

$networkInformation = [System.Net.NetworkInformation.NetworkChange];
$networkAddressChanged = Register-ObjectEvent -InputObject $networkInformation 
-EventName 'NetworkAddressChanged' 
-Action { Write-Host "NetworkAddressChanged event signaled" }

Answer 1

If you assign a static type to a variable, you can subscribe to static events.

For example:

$MyStaticType = [MyStaticNamespace.MyStaticClass]
Register-ObjectEvent -InputObject $MyStaticType -EventName MyStaticEvent -Action {Write-Host "Caught a static event"}

To find any static events a type may have, you can use Get-Member with the -Static switch

[MyStaticNamespace.MyStaticClass] | get-member -static -membertype event

EDIT:
I did notice when trying to access [Microsoft.Win32.SystemEvents] events, that I needed to be running in an elevated prompt (on Vista and above) in order to access the messages.