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.. _qrcode:
=======
QR code
=======
QR code generation with LVGL. Uses
`QR-Code-generator <https://github.com/nayuki/QR-Code-generator>`__ by
`nayuki <https://github.com/nayuki>`__.
.. _qrcode_usage:
Usage
-----
Enable :c:macro:`LV_USE_QRCODE` in ``lv_conf.h``.
Use :cpp:func:`lv_qrcode_create` to create a qrcode object, and use
:cpp:func:`lv_qrcode_update` to generate a QR code.
If you need to re-modify the size and color, use
:cpp:func:`lv_qrcode_set_size` and :cpp:func:`lv_qrcode_set_dark_color` or
:cpp:func:`lv_qrcode_set_light_color`, and
call :cpp:func:`lv_qrcode_update` again to regenerate the QR code.
Notes
-----
- QR codes with less data are smaller, but they scaled by an integer
number to best fit to the given size.
.. _qrcode_example:
Example
-------
.. include:: ../examples/libs/qrcode/index.rst
.. _qrcode_api:
API
---
:ref:`qrcodegen`
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