• General question about QR code scanning

    From james@nospam.com@1:124/5013 to All on Fri Feb 1 00:16:25 2019
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    From: james@nospam.com
    Newsgroups: microsoft.public.windowsxp.general
    Subject: General question about QR code scanning
    Date: Sat, 18 Nov 2017 15:19:13 -0600
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    I got a thing in the mail about using USPS (post office) to ship holiday
    gifts. It says to scan your QR code at home to speed up shipping. I know
    that a smartphone with an app can do this, using the phone's camera, but
    how can someone using a computer do this? (Or maybe it's not
    possible)....

    I just take my stuff to the post office, but I always like to learn how
    this technology stuff all works....

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    * Origin: Prison Board BBS Mesquite Tx //telnet.RDFIG.NET www. (1:124/5013)
  • From nospam@needed.invalid@1:124/5013 to All on Fri Feb 1 00:16:25 2019
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    From: Paul <nospam@needed.invalid>
    Newsgroups: microsoft.public.windowsxp.general
    Subject: Re: General question about QR code scanning
    Date: Sat, 18 Nov 2017 16:06:12 -0500
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    james@nospam.com wrote:
    I got a thing in the mail about using USPS (post office) to ship holiday gifts. It says to scan your QR code at home to speed up shipping. I know
    that a smartphone with an app can do this, using the phone's camera, but
    how can someone using a computer do this? (Or maybe it's not
    possible)....

    I just take my stuff to the post office, but I always like to learn how
    this technology stuff all works....

    Well, without knowing the answer, I'd say your machine
    needs "vision". Your desktop would at least need a webcam.
    Or alternately, if you have a point&shoot digital camera,
    you could take a picture of the offensive QR code, and
    load that into your computer.

    Then the next job, is getting a program to orient the
    picture so it can be decoded, then convert it into
    a URL for you.

    https://www.nextofwindows.com/how-to-scan-qr-code-on-your-pc

    So for fun, I took the picture of a QR code from that sample
    article (cropped it in GIMP so just the QR squares were
    in the picture), and uploaded it here.

    https://webqr.com/

    And that site gave back a URL of "http://en.m.wikipedia.org".

    That means you don't even need a resident Win32 program
    on your PC. You can also upload the image of the QR to
    a web site and the web site can decode it for you. And
    out comes a URL. Or other textual info.

    Paul
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