I am not sure about windoweyes, but one reason why I like nvda at
least for simple apps using standard controls, is that nvda was built
to take advantage of the libraries in the system.
It uses all apis and is made with a scripting language meaning extra
modules for it can be source scripted and that source run directly
without to much hastle.
Direct tieins does have a few issues which is where win eyes, jaws,
and supernova and others are needed.
However, most of the win7/vista systems I maintain have only nvda,
ofcause I need to avoid anything that has info which needs navmode to
read or can automatically do their thing and warn me with controls
that nvda can read.
And to be honest the only reason for my reader upgrade is for win7
and up on my end.
In fact when I reach a version I need to buy again and don't need
it, if I still have my xp box I plan to downgrade to the more stable
5.2 version of hal for now anyway things do work .
At 12:40 p.m. 30/12/2011 +0100, you wrote:
The reason screen readers actually used video intercept was back in
the early 90's when windows and Office were taking off, there were
no standardized Access API's. By the time those got developped the
developers didn't really change well, most of them at least.
Taking JAWS and NVDA as an example, list views have a determined
size for each column, which may sometimes result in things being
shortened on-screen. Regardless of that NVDA always reads the whole
thing, while jaws will just read the abbreviated version and end
with "dot dot dot", making a blind person have to hopefully find an
option to make it larger and if not... just dealing with it as is.
Something similar happens in notepad. NVDA always has access to the
whole edit field, so the window doesn't have to be maximized or
anything. With JAWS, frequently a not maximized window will either
result in just the desktop icons or some other window being read
with mixed portions of actual text, and even if it's maximized, a
baloon may again cause that kind of thing to happen.
However I think supernova is the one that really just uses the video
intercept the most. I had problems in really large desktops of 200+
icons where if I Just got out of what it could see it'd just say no
focus detected, same in a start menu, if scrolling is unchecked
eventually you'll just exit its visibility and hear, start no
selection as long as you're in that area.
I didn't have so many issues with NVDA or window-eyes.
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