From: Joel Pearson <lists@...>
Date: 2012-12-07T23:27:38+09:00
Subject: Re: The error-failed to set window into focus

Context!

At a guess I'd say you're firing an event which requires window focus in 
order to work properly, and for some reason the focus has been stolen or 
the application hasn't been able to focus in order to fire the event. 
This might happen, for example, if you're using IE in concurrant 
threads.

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