CODEWITHSUNDEEP
powershellprocess
Daniil Romme
Daniil Romme

Reputation: 69

Processes in Powershell


I have got a problem.
1.The first situation
Process has already started.
And I want to do something after the current process is completed.
For example
$process=[System.Diagnostics.Process]::GetProcessesByName("notepad")
And
Register-ObjectEvent $process Exited -Action {}
But in this case, it's not working
How Can I Register Event "Exited"?
2. The Second situation
The Process has not yet been started. How I can to wait for start process?)

Upvotes: 1

Views: 1100

Answers (1)

Vesper
Vesper

Reputation: 18747

First part is answered by Mathias R. Jessen with [System.Diagnostics.Process]::GetProcessesByName("notepad") | foreach {Register-ObjectEvent $_ Exited -Action { ... } }

For second part, the solution is below. Credit goes here PDQ.com - Register-ObjectEvent

You need to use WQL queries to monitor for process start event, then set up a query watcher that will fire an event in response of some process getting started, then listen with Register-ObjectEvent on that watcher. Code-copy-paste:

$Query = New-Object System.Management.WqlEventQuery "__InstanceCreationEvent", (New-Object TimeSpan 0,0,1), "TargetInstance isa 'Win32_Process'"
$ProcessWatcher = New-Object System.Management.ManagementEventWatcher $query
$Action = { New-Event "PowerShell.ProcessCreated" -Sender $Sender -EventArguments $EventArgs.NewEvent.TargetInstance }
register-objectEvent -InputObject $ProcessWatcher -EventName "EventArrived" -Action $Action

Upvotes: 1

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