Hi there,
On 07/06/2022 10:25, Michael Weghorn wrote:
Thanks, Christophe, that's really helpful.
Completely agree with Christophe =)
For Windows, we currently support IAccessible2, but not UIA.
That's fine for NVDA, but I have heard/read at times that other screen
readers/AT rely more on UIA. (But I haven't done any further research so
far.)
IIRC IBM encouraged Freedom Scientific to implement some support for
IAcc2 for use with Lotus Symphony in the past - whether that is still
extant I don't know. And of course NVDA is the future =)
Does anybody know more about this and whether it would actually be
necessary to implement native UIA support in LO for those AT to properly
interact with LO?
My take is no. There should be an MSAA <-> UIA bridge built into
windows - after all, there are a -lot- of deep legacy things in the
windows world, and so that should work reasonably well.
Ultimately - I would suggest that providing good, IAcc2 access (which
is a sub-classing of the MSAA interfaces) and then we'll provide UIA
support at some level for anyone using that, and if people want to go
deeper IAcc2 would be fine.
I forget whether implementing UIA requires wrestling with managed code
and/or the CLR - perhaps it used to.
HTH,
Michael.
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