lua-qr

Lua QR Code Generation Library

Introduction

Advantage:

• The QR code generation library based on C language is currently bound to Lua language export API.

• A single API can be used to generate formats such as PNG/BMP/SVG/JSON.

• Developers can customize configuration through the global API.

Disadvantage:

• Not suitable for very frequent QR code file generation scenarios.

• Large memory usage.

Installation

• Use the git clone command to clone the code into the 3rd directory of the framework.

• Finally, use the make build command to compile the code without errors, then you can start using it in the project.

User's Guidance

After successfully importing the library with local qr = require "qr" program code, you can use the following API:

• qr.toPNG(filename, text)

• qr.toSVG(filename, text)

• qr.toBMP(filename, text)

• qr.toJSON(filename, text)

The above API is used to write the content of the text parameter into the path file indicated by filename in the specified format, the format can be: JSON/PNG/SVG/BMP;

• qr.setMAG(mag) - QR Image margins.

• qr.setSEP(sep) - QR Pixel magnification.

• qr.setVERSION(version) - QR Version.

• qr.setLEVEL(level) - QR Error correction level.

• qr.setTYPE(type) - QR Mask pattern type.

The above method is a global configuration, and developers will use the above method to modify it will take effect globally.

TEST

Please refer to the test.lua file for specific sample codes.

LICENSE

MIT-LICENSE