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Hi Michael,

yes, it is correct that IAccessible2 and ATK were both devised with the Open document format model 
in mind, with the implementation in Firefox following closely behind, introducing some web specific 
modifications into the specifications for both platforms. 

So, yes, as Michael W. suggested, for the near term, and probably some years to come, it is a good 
strategy to fix bugs in the IAccessible2 and ATK layers to get them up to speed. And as I said, 
even Impress can be made to work, at least with NVDA, by making sure to collaborate with the NVDA 
project so they support it when it is ready.

It is, however, a good strategy to also keep an eye on UIA, at least on the side, and also watch 
what Mozilla do with Firefox in the longer term with regards to an UIA implementation. Just to not 
get hit out of the blue with suddenly IAccessible2 support twindling within assistive technologies 
because everyone else has moved to UIA.


-----Original Message-----
From: Michael Stahl <> 
Sent: Thursday, June 9, 2022 11:51 AM
To: Michael Weghorn <>; Marco Zehe <>;
Subject: Re: [libreoffice-accessibility] Re: ESC meeting minutes: 2022-05-26 [IAccessible2 support 
in JAWS]

On 09.06.22 11:21, Michael Weghorn wrote:
I suppose that supporting new UIA concepts/features in addition would 
probably require more fundamental changes than "just" adding a new 
wrapper/bridge for UIA around existing LO a11y interfaces (either a 
custom one, or using Gtk/Qt).
But I'm not an expert and have only little experience with a11y so far 
and not looked into UIA any closer, so all of the above would need 
deeper knowledge/further investigation for a more reliable statement.

Unless there are resources to work on UIA specifically, I tend to 
think it would make sense to focus on improving the existing 
IAccessible2-based implementation ("winaccessibility") (and fixing 
issues that are not platform-specific) for now if that's (still) 
sufficiently supported by AT in practice, and reconsider what to do 
about UIA at some later point in time (at which there might also be 
news on the state of gtk4 and qt5/qt6 a11y).

i tend to agree, one aspect of this is that AFAIK the AT-SPI and
IAccessible2 APIs that concern document content were designed specifically with OOo's document 
models in mind - there might be a bigger impedance mismatch to other A11y APIs, needing more code 
in the "translation layer".

but i don't know any details about UIA.

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