Re: QR Code Suggestions

How about this as a way to help blind people place their camera over QR
codes being shown on a desktop PC (they need a way to know where the thing
is positioned so they can hold their mobile phone camera over it):

1) The developer places a button beside the QR code that, when pressed,
uses standard system calls to open a popup window in the top left corner of
the PC screen, with just the QR code in it. (I don't think this can be a
normal modal dialog as they are positioned relative to the browser window,
so it would have to be a new window using system calls.)

2) The blind person can now place their camera over the QR code by feel. It
will take a bit of practice for them to find exactly where to hold their
particular device, but I imagine that once they have mastered that, they
will be able to position it for all future websites using QR codes if they
provide this method.

3) The popup window must have nothing else in it other than the QR code.
And it must have zero margins and padding round the code, as the intention
is to have the QR code positioned in a consistent place relative to the
physical monitor screen. So such a method would have to be enshrined in a
standard pattern or or standard to ensure it is done the same way by all
websites using the method.

4) The button would be labelled (or have an aria-describedby attribute
saying), "Open QR code at top left of screen" so something like that so the
user knows where it will appear. And an alert message is needed to say when
the thing has appeared.

5) I believe most mobile apps that scan QR codes will make a sound when
they do a successful scan, or can optionally be set to do so, but that
would be an important part of the process for blind people.

6) This would need to use the top corner of the screen to be useful, as
many screen might be too close to the desk to allow easy mobile placement
on a bottom corner, or might have too many papers and yesterday's coffee
cup piled around it to allow room!

Of course, this helps blind screen reader users, but doesn't help people
with motor impairments who, as has been mentioned earlier in this thread,
also have difficulty placing their mobile device over QR codes. Maybe if we
think about it some more, we can find a way to help them too?