QR codes

[john renfrew]

For those following the 'using QR codes to pass Safari address & parameters into FM GO' to launch it discussions, I have done a quick script to create the QR code and return the image to a container using the itextpdf library..(needs 5.02.jar)

Only have a 'Touch' not a 'Phone' so if anyone want to test this works it would be brilliant...

//QRimg(fm_content)

//2010_09_25 JR

//v1

//takes path and text from fm_content and returns image to container

//requires itextpdf.jar 5.02 from itextpdf.com



import java.awt.image.*

import com.itextpdf.text.*

import com.itextpdf.text.pdf.*



qr = new BarcodeQRCode(fm_content, 1, 1, null)

img = qr.createAwtImage(java.awt.Color.BLACK, java.awt.Color.WHITE)

int w = img.getWidth()

int h = img.getHeight()

bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB)

g2 = bi.createGraphics() 

g2.drawImage(img, 0, 0, w, h, null); 

g2.dispose()

return bi

[abyteofdata]

Hi John,

I built this into an FM app I'm working on for a local museum that wants to add QR codes on the tags placed near the art objects, so that you can scan the code then have your browser take you to a web page with info about the object. Tested the QR code with an iPhone app called QRReader and it works well. Will test on an Android-based phone a little later and will post the results.

[Bailey Kessing]

ANy chance you have a Datamatrix barcode working???

[john renfrew]

Just so happens I have updated my demo file this week

So here is is

Three layouts

FMP7 QR codes for use with Go

QR codes with a web address

Datamatrix code

John

Update

do not seem to be able to upload files

if anyone can fix this first then you can gladly have it.....

[john renfrew]

For now here is the code

//DataMXimg(fm_content)

//2011_05_15 JR

//v1

//takes content from fm_content and returns image to container

//requires min itextpdf.jar 5.02 from itextpdf.com



import java.awt.image.*

import com.itextpdf.text.*

import com.itextpdf.text.pdf.*



qr = new BarcodeDatamatrix()

qr.generate(fm_content)

img = qr.createAwtImage(Color.BLACK, Color.WHITE)

int w = img.getWidth()

int h = img.getHeight()

bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB)

g2 = bi.createGraphics()

g2.drawImage(img, 0, 0, w, h, null)

g2.dispose()

return bi

[andries]

Personally I love the zxing library to do that for me. http://code.google.com/p/zxing/

It can also read an image with a QR code in it (even when it is a picture of a building with a QR code on it) and returns the value of the QR code.

Andries

[Bailey Kessing]

Awesome and thanks

if you have the sample file that would help thanks

[john renfrew]

attached...

EXCEPT you need to change the pdf extension to fp7 as it wont let me upload Filemaker file !!

John

QRcode.pdf

[tylercaro]

Personally I love the zxing library to do that for me. http://code.google.com/p/zxing/

It can also read an image with a QR code in it (even when it is a picture of a building with a QR code on it) and returns the value of the QR code.

Andries

 

 

thanks andries, i have used zxing library for barcode, works great for me. and i am also testing other projects: how to create colorful qr code in java.

[bobbell2]

Personally I love the zxing library to do that for me. http://code.google.com/p/zxing/

It can also read an image with a QR code in it (even when it is a picture of a building with a QR code on it) and returns the value of the QR code.

Andries

Thank you, i also have used this library for qrcode, it's very useful for me.