Crate qrcode_png

Create a QR code

use qrcode_png::{ColorType, Grayscale, QrCode, QrCodeEcc, RGB, RGBA};

let mut qrcode = QrCode::new(b"Hello Rust !", QrCodeEcc::Medium).unwrap();

qrcode.margin(10);
qrcode.zoom(10);

// -------- Grayscale
let buf = qrcode
    .encode(ColorType::Grayscale(Grayscale::default()))
    .unwrap();
std::fs::write("./qrcode.grayscale.png", buf).unwrap();

// -------- RGB
let buf = qrcode
    .encode(ColorType::RGB(RGB::new([3, 169, 244], [113, 140, 0])))
    .unwrap();
std::fs::write("./qrcode.rgb.png", buf).unwrap();

// -------- RGBA
let buf = qrcode
    .encode(ColorType::RGBA(RGBA::new(
        [137, 89, 168, 255],
        [255, 255, 255, 0],
    )))
    .unwrap();
std::fs::write("./qrcode.rgba.png", buf).unwrap();

Structs

Grayscale	Grayscale 0-255
QrCode	Define QR code
RGB	RGB color [0-255, 0-255, 0-255]
RGBA	RGB color [0-255, 0-255, 0-255, 0-255]

Enums

ColorType	PNG image color type
QrCodeEcc	The error correction level in a QR Code symbol.