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Re: Invert Screen (Universal Access)

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In article <m9k9up$7hs$1@solani.org>, ErikRS <mac-dane@is.invalid>
wrote:

> Your Name wrote:
> > In article <agisaak.spamblock-499FAE.04152015012015@shawnews>, Ymir
> > <agisaak.spamblock@gmail.com> wrote:
> >>
> >> Hi,
> >>
> >> I have developed rather severe cataracts over the past year and it is
> >> becoming increasingly more difficult to use my mac while I await
> >> treatment.
> >>
> >> First, I'm still using Leopard (10.5.8) so my OS is a bit behind the
> >> times, but maybe someone here can still help me out.
> >>
> >> There's an option in Universal Access to invert the screen colours using
> >> cmd-ctl-opt-8 which makes text much easier to read. Unfortunately, this
> >> option also makes photos and video entirely uninterpretable.
> >>
> >> I'd like to find a way to write a script which will automatically invert
> >> the video when certain applications are foregrounded and uninvert it for
> >> others (and also change desktop pictures so the desktop remains
> >> consistently dark), but I'm not sure if it is even possible to associate
> >> a script with a particular application. Does anyone know if this is
> >> possible? and if so do you have a link to someplace which might describe
> >> how to do this?
> >>
> >> Also, while I know how to toggle the video, I've been unable to find
> >> anyplace where one can actually access the current state of the display.
> >> I'm assuming there must be some variable accessible via the terminal
> >> which contains this info, but I have no ideas what it is called. Any
> >> suggestions?
> >>
> >> I suspect this may not be possible but thought I would ask...
> >
> > It's not really worth all the effort. It's much easier to simply push
> > cmd-ctl-opt-8 as needed.
> 
> Well, it depends... I too always use the inverted mode in combination 
> with enlargement due to my low sight, and I'd indeed like if it was 
> possible to find an automatically way when videos and photos - or any 
> other graphics in a document ocours.
> 
> I once was told from a guy here at Apple Denmark that it isn't possible 
> to make this work correctly. So I always use the keyboard commands. It 
> irritates me though each time if I'd like to see a picture in real 
> colour, since using the commands always gives a sharp flush in the eyes 
> when you go from a black background to the normal white - especially if 
> I've zoomed to normal size before reverting to normal.
> 
> Working in Photoshop is rather easy though. When I've opened a picture, 
> it's just to press COM+I to 'invert' the picture. And when the whole 
> system already works inverted, the picture is shown in normal colours. - 
> But it indeed requires quite a lot of learning to use the various 
> settings when/if you want to correct a picture - and don't forget to 
> 're-invert' the picture before saving - else people with normal sight 
> will see the picture like an old film negative.:-)

Even if it was possible, having the computer automatically switch
between "normal" and "invert" modes would likely be even more annoying
... at least when pressing the keys you know it's going to happen and
happens when you want, rather than unexpectedly or when you click on
the wrong application in the Dock, etc.

In OS X Yosemite there is the new "Dark Mode" which is something
similar to what you want - dark backgrounds, white text, and normal
images.

The other way would be to "theme" your Mac. Depending on the version of
Mac OS X, there are utilities around that let you change the fonts,
colours, etc. of applications that follow the rules (there are some
applications that naughtily do not follow the rules though).

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Thread

Invert Screen (Universal Access) Ymir <agisaak.spamblock@gmail.com> - 2015-01-15 04:15 -0700
  Re: Invert Screen (Universal Access) Your Name <YourName@YourISP.com> - 2015-01-16 09:03 +1300
    Re: Invert Screen (Universal Access) Ymir <agisaak.spamblock@gmail.com> - 2015-01-18 21:37 -0700
      Re: Invert Screen (Universal Access) David Ritz <dritz@mindspring.com> - 2015-01-18 23:24 -0600
        Re: Invert Screen (Universal Access) Ymir <agisaak.spamblock@gmail.com> - 2015-01-19 00:04 -0700
      Re: Invert Screen (Universal Access) Jolly Roger <jollyroger@pobox.com> - 2015-01-19 06:10 +0000
        Re: Invert Screen (Universal Access) Ymir <agisaak.spamblock@gmail.com> - 2015-01-19 00:05 -0700
          Re: Invert Screen (Universal Access) Jolly Roger <jollyroger@pobox.com> - 2015-01-19 16:32 +0000
            Re: Invert Screen (Universal Access) Ymir <agisaak.spamblock@gmail.com> - 2015-01-19 10:00 -0700
              Re: Invert Screen (Universal Access) Jolly Roger <jollyroger@pobox.com> - 2015-01-19 17:10 +0000
    Re: Invert Screen (Universal Access) ErikRS <mac-dane@is.invalid> - 2015-01-20 02:10 +0100
      Re: Invert Screen (Universal Access) Your Name <YourName@YourISP.com> - 2015-01-20 16:12 +1300

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