PowerShell Eventing QuickStart

Dew Drop – June 11, 2008 | Alvin Ashcraft's Morning Dew

Dew Drop – June 11, 2008 | Alvin Ashcraft's Morning Dew — Wed, 11 Jun 2008 15:37:04 GMT

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re: PowerShell Eventing QuickStart

Jon — Wed, 11 Jun 2008 23:27:31 GMT

Some very powerful techniques in there. Thanks.

I noticed that the history preservation works if you type 'exit', but not if you click the top-right X to close Powershell. Is it possible to do something similar to intercept that event too, or would that be a different kettle of fish?

Jon

re: PowerShell Eventing QuickStart

shaurav — Wed, 09 Jul 2008 02:14:21 GMT

i tried following your post. For some reason, Register-ObjectEvent throws an error saying that it not recognized as a cmdlet, function, etc. etc.

is there any extra library/snap-in that i need before i could use this cmdlet?

Please help me.

re: PowerShell Eventing QuickStart

PowerShellTeam — Tue, 22 Jul 2008 03:27:33 GMT

Hi Shaurav;

This requires CTP2 of PowerShell.

re: PowerShell Eventing QuickStart TFS

shaurav — Wed, 23 Jul 2008 20:30:13 GMT

Thank you. I was not aware of the new CTP. I hvae another question, is it possible to register TFS events using what you wrote above? i want to create a script which kicks off a build as soon as a developer checks-in some code.

re: PowerShell Eventing QuickStart

PowerShellTeam — Thu, 24 Jul 2008 00:11:55 GMT

from James Manning on the TFS team:

Short answer:

what you're asking for is "continuous integration" and it's built-in to TFS 2008 and there are multiple ways of doing it with TFS 2005. I would imagine you'll be able to leverage existing work for this.

http://blogs.msdn.com/buckh/archive/2006/08/09/more-continuous-integration.aspx

Long answer:

TFS "events" (a bad choice on our part to overload that term) aren't .NET events, they're just notification mechanisms initiated by the TFS server (send email or call web service).

For your case, the simplest thing would probably be a powershell script that hosted a web service (using WCF or whatever), register it on the TFS server (BisSubscribe.exe or some other tool for managing the subscriptions) then when the service gets called for a checkin, kick off the build.

However, as mentioned earlier, TFS 2008 already has this built-in, so I'd recommend upgrading to it (if you're still on 2005) and using the CI we already put in the box :)

re: PowerShell Eventing QuickStart re Warning $args has changed

Bob Landau — Thu, 12 Mar 2009 00:11:39 GMT

For those running CTP3 I thought I'd let you know how to update Lees's script "Event Forwarding/Supports Events". Paul expained to me how to do this in the public discussion group.

-> Enable-ProcessCreationEvent

change

$args[1].SourceEventArgs.NewEvent.TargetInstance

$args[1].NewEvent.TargetInstance

change

-> Register-PsEvent

in addition to this change the parameter

$args[1].SourceArgs[0].Name.Split

$args[0].Name.Split

one other note $args are scoped to the action block.

In the case of RegisterObjectEvent these are ManagementEventWatcher and EventArrivedEventArgs respectively.

In the example above case New-Event is returning a WMI query to Register-EngineEvent so this will be a ManagementBaseObject that encapsulates a WMI class. In this case the properties of Win32_Process.

Hopefully this will save some of you time and frustration

multithreading PowerShell Eventing QuickStart

Yup — Wed, 18 Mar 2009 05:37:40 GMT

Can we do multithreading using powershell?

Like wise shooting some query strings to a set of database servers simultaneousl;y.

re: PowerShell Eventing QuickStart

Ric Lewis — Sat, 11 Jul 2009 02:22:18 GMT

Another update--in the final version of Powershell v2, "PSEvent*" cmdlets have been renamed "Event*"

PowerShell events from COM objects

Jo — Wed, 12 Aug 2009 19:02:45 GMT

Is it possible to handle

events from COM objects?

e.g.

$comobj = New-Object -ComObject ...

Following command doesn't show anything. Why?

$comobj | Get-Member -Type Event

The COM object has events. In VBScript I can receive events.

re: PowerShell Eventing QuickStart

Paul M. Parks — Tue, 25 Aug 2009 19:47:02 GMT

@Jo: I'm looking for exactly the same thing, myself. I can do it from, say, C#, so it's possible, but I can't yet work out the Powershell voodoo necessary to do it.

re: PowerShell Eventing QuickStart

Andrew — Sat, 02 Jan 2010 23:17:33 GMT

I have some troubles with event forwarding.

Im using code like this:

$remoteComputer = "some_comp"

$session = New-PsSession $remoteComputer

Unregister-Event CatchEvent -ErrorAction SilentlyContinue

Invoke-Command $session {

service

$query = @"

SELECT *

FROM __instancecreationevent

WHERE TargetInstance ISA 'Win32_NtLogEvent'

and targetinstance.eventcode = '7036'

}

$null = Register-EngineEvent CatchEvent -Action { $GLOBAL:MyEvent = $event}

But $MyEvent.SourceEventArgs.SerializedRemoteEventA

rgs.NewEvent.TargetInstance is string, not event.

Tell me please, whats wrong with my script?