bug#2608: 23.0.90; `w32-use-visible-system-carat' should be a defcustom

[Drew Adams]

> > From: Jason Rumney Sent: Tuesday, March 10, 2009 7:50 AM
> > > A visually impaired new Emacs user just asked a question 
> > > about this variable on help-emacs-windows@gnu.org. I had
> > > never heard of this variable. I see now that it is a
> > > defvar, even though it seems to be
> > > documented as a user "flag". Seems like it should be a defcustom.
> > >   
> > 
> > It was originally intended as a user option, but code was added to 
> > automatically set it according to whether screen reading 
> > software is in use. So it should just do the right thing.
> > Documentation probably needs updating to reflect that, and the
> > fact that it is only useful for screen reading software, as the
> > user seems to have gotten the idea that it might help them even
> > though they don't use such software - in fact Emacs 
> > drawn cursors are far more useful, as they can be configured 
> > to be more or less visible as the user requires.
> 
> I see. Yes, I think clarifying this in the doc would help. 
> And perhaps add a
> link to a manual section about customizing the cursor, for 
> people such as the OP
> who don't use screenreaders.
> 
> Beyond this bug fix, perhaps it would be useful to add a 
> top-level Emacs-manual
> section about Accessibility (aka help for the disabled) with 
> links to pertinent
> sections of the manual that might be of special help.
> 
> CC'ing the OP.

I don't see this as fixed in 23.0.94.1. I'm looking at both the doc string and
the Emacs manual section about this variable.