From a176fd841b494ebe270076389aad85cc10df024c Mon Sep 17 00:00:00 2001
From: favoritas37 <ftylitak@gmail.com>
Date: Mon, 1 Jun 2015 16:58:16 +0300
Subject: [PATCH] applied patch from Alexxey593 from here: 
 https://sourceforge.net/p/qzxing/discussion/general/thread/770fb0a5/#1d98

---
 source/QZXing.h   | 10 ++++++++--
 source/qzxing.cpp |  4 ++--
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/source/QZXing.h b/source/QZXing.h
index 1de740c..f0fe429 100644
--- a/source/QZXing.h
+++ b/source/QZXing.h
@@ -11,6 +11,12 @@
 #include <QtQml/qqml.h>
 #endif
 
+// forward declaration
+namespace zxing {
+class MultiFormatReader;
+}
+class ImageHandler;
+
 /**
   * A class containing a very very small subset of the ZXing library.
   * Created for ease of use.
@@ -143,9 +149,9 @@ signals:
     void enabledFormatsChanged();
 
 private:
-    void* decoder;
+    zxing::MultiFormatReader* decoder;
     DecoderFormatType enabledDecoders;
-    QObject* imageHandler;
+    ImageHandler* imageHandler;
     int processingTime;
 
     /**
diff --git a/source/qzxing.cpp b/source/qzxing.cpp
index 922c86e..b4e13a3 100644
--- a/source/qzxing.cpp
+++ b/source/qzxing.cpp
@@ -135,7 +135,7 @@ QString QZXing::decodeImage(QImage &image, int maxWidth, int maxHeight, bool smo
 
         Ref<BinaryBitmap> ref(bb);
 
-        res = ((MultiFormatReader*)decoder)->decode(ref, DecodeHints((int)enabledDecoders));
+        res = decoder->decode(ref, DecodeHints((int)enabledDecoders));
 
         QString string = QString(res->getText()->getText().c_str());
         processingTime = t.elapsed();
@@ -177,7 +177,7 @@ QString QZXing::decodeSubImageQML(QObject* item,
         return "";
     }
 
-    QImage img = ((ImageHandler*)imageHandler)->extractQImage(item, offsetX, offsetY, width, height);
+    QImage img = imageHandler->extractQImage(item, offsetX, offsetY, width, height);
 
     return decodeImage(img);
 }