OMOTE/LVGL Simulator/LvglPlatform/lvgl/docs/libs/barcode.md

Barcode

Barcode generation with LVGL. Uses code128 by fhunleth.

Usage

Enable LV_USE_BARCODE in lv_conf.h.

Use lv_barcode_create() to create a barcode object, and use lv_barcode_update() to generate a barcode.

Call lv_barcode_set_scale() or lv_barcode_set_dark/light_color() to adjust scaling and color, and call lv_barcode_update() again to regenerate the barcode.

Notes

• It is best not to manually set the width of the barcode, because when the width of the object is lower than the width of the barcode, the display will be incomplete due to truncation.
• The scale adjustment can only be an integer multiple, for example, lv_barcode_set_scale(barcode, 2) means 2x scaling.

Example

.. include:: ../../examples/libs/barcode/index.rst

API

.. doxygenfile:: lv_barcode.h
  :project: lvgl