[vbox-dev] Virtual Box API to shutdown machine / apply snapshot

Benedict, Elad benedict.elad at hp.com
Fri Apr 20 09:12:59 PDT 2012

This is my first interaction with this API so I guess I'm just using it wrong;

My machine can be in the saved\paused\abort\running state.
I'd like to write the simplest code that gets my machine from whatever state it is in to a running state after having restored a given snapshot.

Can you please advise?

Thanks again,

-----Original Message-----
From: Klaus Espenlaub [mailto:klaus.espenlaub at oracle.com] 
Sent: Friday, April 20, 2012 6:42 PM
To: vbox-dev at virtualbox.org
Subject: Re: [vbox-dev] Virtual Box API to shutdown machine / apply snapshot

Hi Elad,

On 20.04.2012 17:31, Benedict, Elad wrote:
> Hi all,
> I'm trying to use the COM API to apply some snapshot.
> Since I don't know (or more accurately, care, about) the initial state
> of the machine I thought I'd:
> 1. Power the machine off
> 2. Apply the snapshot I want
> The thing is I can't get the machine to PoweredOff state using the
> PowerDown method since it's not legal when the machine is in certain states.
> Is there some easy way to perform what I want?
> (Either easily apply the snapshot, regardless of the machines current
> state, or get it to powered off state)

Which "certain states" are you talking about? So far we got away with 
the API methods...


> Thanks a lot,
> Elad.

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