QR Code Generator

[This is preliminary documentation and is subject to change.]

QR code Generation in TOPICA

QR Code Generator

This document describes how to generate QR codes in Topica and how to integrate them into new and existing Topica applications.

URL Configuration.

The QR code generator operates on the principles of REST. A Get request is issued to a specific URL, with a set of QueryString parameters, and a QR code is generated from the QueryString parameters and returned as an Image response type. The Image response can be used directly in an HTML Image tag or it can be saved to disk by the caller.

The QR code image generator output

The URL to reference for generating a QR code in the following Minimal qualified URL: Fully qualified URL:

QueryString parameter	Valid values	Required?	Default	Description
value	Any text.	true	N/A	This is the value that will be converted to QR code representation.
pixels	A numeric value is applicable.	true	N/A	The size of the QR code.
dark	A hexadecimal value number for the dark color (without '#')	false	000000	This parameter controls the color of the dark part.
light	A hexadecimal value number for the light color (without '#')	false	ffffff	This parameter controls the color of the light part.
quiet	Boolean	false	false	This parameter controls the frame of the QC Code.

Example usage - Topica Dynamic Form

Examples using JavaScript popup, html page, aspx page and IFrame.

Example usage - Topica Report

Examples using report element.

Example usage - Custom ASPX

This example shows how to use the QR code feature on an aspx page. QueryString parameters could be appended to the URL from the code-behind file.

This example shows how to use the QR code feature using a standard HTML image tag.