Zint

This is a Ruby FFI wrapper for the Zint barcode generation library (http://www.zint.org.uk).

Installing Zint

For OS X leverage the Homebrew

brew install zint

Other platforms require building from source. Follow the Zint installation instructions.

NOTE: We assume that you are using Zint version 2.6.3_rc2 but future releases should work well enough.

Installation

As mentioned, you must install zint to be able to use this gem. Once that dependency is satisfied, then you can just do the usual gem install.

gem install zint

Usage

require 'zint'
# Create a code-128 barcode
bc = Zint::Barcode.new("test")
bc.print! # file is now on relative path "out.png"
bc.path = "my_bc.png"
bc.print! # file is now on relative path "my_bc.png"
bc.path = "my_bc.svg"
bc.print!
bc.print! # file is now on relative path "my_bc.svg"

# create a qrcode
qrcode = Zint::Barcode.new("test", Zint::BARCODE_QRCODE)
qrcode.path = "qrcode.png"
qrcode.print! # file is now on relative path "qrcode.png"
qrcode_string = qrcode.buffer!
puts qrcode_string

#QRCode with more options, specifically set a high error correction capacity
qrcode = Zint::QRCode.new("test", Zint::QRCode::ECC_H)
qrcode.path = "qrcode.ecc_h.png"
qrcode.print! # file is now on relative path "qrcode.ecc_h.png"
# encode barcode as text
qrcode.path = "qrcode.ecc_h.txt"
puts qrcode.buffer!