A pure Lua library for generating BMP file from qrcode array

Dependencies

• Lua 5.3
• luaqrcode

Interface

function bmp(array, width)

array is qrcode data which is generated by luaqrcode. width is BMP image's width.

Example

qrencode = require("qrencode")
bmp = require("bmp")

local ok, tab_or_message = qrencode.qrcode("hello world")
if not ok then
    print(tab_or_message)
else
    image_file = io.open("test.bmp", "wb")
    image_file:write(bmp(tab_or_message, 230))
    image_file:close()
end