[vbox-dev] Virtual box and Brltty for Windows and NVDA again

Klaus Espenlaub klaus.espenlaub at oracle.com
Wed Aug 21 10:11:53 PDT 2013

Hi Janusz,

not sure what we should do with all the information you provided below. 
It seems to me that you're happy with what we're doing. Is this correct?

I'm by far no expert on accessibility, and a lot of the details mean 
very little to me...

What I understood is that you're a happy VirtualBox user, and we like 
such reports. Far better than the usual "something doesn't work" mails 
we usually get.


On 20.08.2013 21:45, Mgr. Janusz Chmiel wrote:
> Dear core developers,
> I have finally found out The reason, why my braille device button inside
> Tieman Braille Voyager could not be used while runing Windows XP inside
> virtual machine.
> I had to let NVDA screen reader to blink with The Braille device cursor.
> If cursor blinkink have been set for 1000 milliseconds, i had to wait
> more seconds untill NVDA reacted on The braille key stroke.
> If cursor blinkink have been set for 200 milliseconds for example, i
> could get The buttons work very fast.
> But i can not set this value for too lov value, because Wxpython, which
> is containing software pump, which is pumping The other parts of The
> NVDA core components to work in The multitasking mode have also timer
> set to some milliseconds value, so i can not let NVDA to blink with
> Braille cursor with The same speed as a Wxpython software pump cicle is
> set to.
> I would like to thank You, that You have develop Virtual box so
> effective, that The CPU s not being over burned while running Windows XP.
> MY CPU fan is working at The lovest speed even Windows XP is running for
> many hours inside virtual computer.

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