Dave can give you a much more accurate explanation than I can. But since we 
aren't able to access the contents of the screen on Apple computers directly 
(probably not impossible but I don't think anybody has gotten this information 
from Apple though it ha been tried) we have to have the screen environment 
instead.

Here's what the introduction to the READMe says:

"Shared memory is another method for BRLTTY to get the content of the screen.
For this method you need two components:

*  Some other application needs to maintain the shared screen image. This can 
   be done via the screen program when augmented by a BRLTTY-supplied patch.
*  BRLTTY needs to be able to view the shared screen image. This is done via
   its Screen screen driver.

The original purpose of screen was to run different "screens" on a single
terminal. It also supports features like copy-and-paste, a scrollback buffer,
etc. Screen supports lots of terminal types, especially XTERM. This is
important because it runs under X-Windows which is part of most unixes."


-- 
Cheryl

I tried and tried to turn over a new leaf.
I got crumpled wads of tear-stained paper
thrown in the trash!
Then God gave me a new heart and life:
His joy for my despairing tears!
And now, every day:
"This I call to mind,
and therefore I have hope:
The steadfast love of the Lord
never ceases;
his mercies never come to an end;
they are new every morning;
great is your faithfulness."
(Lamentations 3:21-23 ESV)




On Sep 14, 2014, at 3:41 PM, Anders Holmberg <and...@pipkrokodil.se> wrote:

> Hi!
> Just another dum question.
> What does screen do really?
> Is it only for the terminal?
> /A
> 14 sep 2014 kl. 22:14 skrev Cheryl Homiak <cah4...@icloud.com>:
> 
>> This isn't necessary. Screen-4.0.1 can be downloaded and can be compiled and 
>> patched. The patches and documentation are in the brltty download in the 
>> Patches directory. There are two patches that must be applied and, at least 
>> the last time I did this, which I believe was on Mavericks, it worked with 
>> no problem. The link is in the README in the Patches directory.
>> 
>> 
>> -- 
>> Cheryl
>> 
>> I tried and tried to turn over a new leaf.
>> I got crumpled wads of tear-stained paper
>> thrown in the trash!
>> Then God gave me a new heart and life:
>> His joy for my despairing tears!
>> And now, every day:
>> "This I call to mind,
>> and therefore I have hope:
>> The steadfast love of the Lord
>> never ceases;
>> his mercies never come to an end;
>> they are new every morning;
>> great is your faithfulness."
>> (Lamentations 3:21-23 ESV)
>> 
>> 
>> 
>> 
>> On Sep 14, 2014, at 3:09 PM, Chris Moore <chris.w...@gmail.com> wrote:
>> 
>>> Hi.
>>> What we need is for someone to share  the source code for a patched version 
>>> of screen which will run with brltty  on the mac.
>>> 
>>> Chris
>>> On Sep 14, 2014, at 5:40 AM, mattias <mjonsson1...@gmail.com> wrote:
>>> 
>>>> i think i get brltty itself compiled
>>>> but 
>>>> brltty
>>>> no screen
>>>> 13 sep 2014 kl. 23:15 skrev Cheryl Homiak <cah4...@icloud.com>:
>>>> 
>>>>> If Xcode is not downloaded and installed, go to the app store on your Mac 
>>>>> and get it; it's free.
>>>>> 
>>>>> Then, once Xcode is installed, in terminal run:
>>>>> 
>>>>> xcode-select  --install
>>>>> 
>>>>> It isn't necessary to do this as root or with sudo.
>>>>> The way to install xcode and make sure the command-line tools are 
>>>>> installed differs from version to version but this is how it is done in 
>>>>> Mac OS 10.9 and later.
>>>>> 
>>>>> 
>>>>> -- 
>>>>> Cheryl
>>>>> 
>>>>> I tried and tried to turn over a new leaf.
>>>>> I got crumpled wads of tear-stained paper
>>>>> thrown in the trash!
>>>>> Then God gave me a new heart and life:
>>>>> His joy for my despairing tears!
>>>>> And now, every day:
>>>>> "This I call to mind,
>>>>> and therefore I have hope:
>>>>> The steadfast love of the Lord
>>>>> never ceases;
>>>>> his mercies never come to an end;
>>>>> they are new every morning;
>>>>> great is your faithfulness."
>>>>> (Lamentations 3:21-23 ESV)
>>>>> 
>>>>> _______________________________________________
>>>>> This message was sent via the BRLTTY mailing list.
>>>>> To post a message, send an e-mail to: BRLTTY@mielke.cc
>>>>> For general information, go to: http://mielke.cc/mailman/listinfo/brltty
>>>> 
>>>> _______________________________________________
>>>> This message was sent via the BRLTTY mailing list.
>>>> To post a message, send an e-mail to: BRLTTY@mielke.cc
>>>> For general information, go to: http://mielke.cc/mailman/listinfo/brltty
>>> 
>>> _______________________________________________
>>> This message was sent via the BRLTTY mailing list.
>>> To post a message, send an e-mail to: BRLTTY@mielke.cc
>>> For general information, go to: http://mielke.cc/mailman/listinfo/brltty
>> 
>> _______________________________________________
>> This message was sent via the BRLTTY mailing list.
>> To post a message, send an e-mail to: BRLTTY@mielke.cc
>> For general information, go to: http://mielke.cc/mailman/listinfo/brltty
> 
> _______________________________________________
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> To post a message, send an e-mail to: BRLTTY@mielke.cc
> For general information, go to: http://mielke.cc/mailman/listinfo/brltty

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