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<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
<topic xml:lang="en-us" id="guestadd-guestprops-waits">
<title>Using Guest Properties to Wait on VM Events</title>
<body>
<p>
The properties <codeph>/VirtualBox/HostInfo/VBoxVer</codeph>,
<codeph>/VirtualBox/HostInfo/VBoxVerExt</codeph> or
<codeph>/VirtualBox/HostInfo/VBoxRev</codeph> can be waited on
to detect that the VM state was restored from saved state or
snapshot:
</p>
<pre xml:space="preserve">$ VBoxControl guestproperty wait /VirtualBox/HostInfo/VBoxVer</pre>
<p>
Similarly the
<codeph>/VirtualBox/HostInfo/ResumeCounter</codeph> can be
used to detect that a VM was resumed from the paused state or
saved state.
</p>
</body>
</topic>
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