Reading QR code

In this example we will use the ZXing library for QR code reading.

Getting ready

Please download the Cinder ZXing block from GitHub and unpack it to the blocks folder: https://github.com/dawidgorny/Cinder-ZXing

How to do it…

We will now create a QR code reader:

1. Add a header search path to the build settings of your project:

   $(CINDER_PATH)/blocks/zxing/include

2. Add a path from the precompiled ZXing library to the build settings of your project: $(CINDER_PATH)/blocks/zxing/lib/macosx/libzxing.a. For a debug configuration, use $(CINDER_PATH)/blocks/zxing/lib/macosx/libzxing_d.a.

3. Add Cinder ZXing block files to your project structure as follows:

   

4. Add the libiconv.dylib library to the Link Binary With Libraries list:

   

5. Add the necessary header files:

   #include "cinder/gl/Texture.h"
   #include "cinder/Surface.h"
   #include "cinder/Capture.h"
   
   #include <zxing/qrcode/QRCodeReader.h>
   #include <zxing/common/GlobalHistogramBinarizer.h>
   #include <zxing/Exception.h>
   #include <zxing/DecodeHints...