qrcode

Generates a QR code bitmap for the given text.

Syntax

qrcode(text, scale?, typeNumber?, errorCorrectionLevel?)

Parameters

• text

  The text to encode in the QR code.

• scale optional

  The scaling factor for each module (pixel) in the QR code. Default is 12.

• typeNumber optional

  The QR code version (type number) from 1 to 40, which determines the size and data capacity. Default is 4.

• errorCorrectionLevel optional

  The error correction level. Can be 'L' (Low), 'M' (Medium), 'Q' (Quartile), or 'H' (High). Default is 'L'.

Return value

A Bitmap object containing the generated QR code as a grayscale image.

Examples

qrcode("https://calcish.com", 8, 6, 'M')

Notes

• Higher type numbers allow for more data but create larger QR codes
• Higher error correction levels make the QR code more resilient to damage but use more space