如何在Windows Phone 8.1应用程序开发中读取QR码？

Question

I want to scan QR code in windows phone app 8.1.I am tried lot of examples but no one is work for me.
Below code I tried but no use

 xmlns:jwqr="clr-namespace:JeffWilcox.Controls;assembly=JeffWilcox.Controls.QR"

in xaml

<jwqr:QRCodeScanner
    ScanComplete="QRCodeScanner_ScanComplete"
    Error="QRCodeScanner_Error"
    Width="400"
    Height="400"/>

It showing error like:

The name "QRCodeScanner" does not exist in the namespace "clr-namespace:JeffWilcox.Controls;assembly=JeffWilcox.Controls.QR"

And tried the link this one also not working for me. But in this camera not scan the code.
Please anyone help me. If you have any other links. I am trying this last 3 days but till now I am not getting any answer correctly.
Plase help me.......

Answer 1

I'm not recommending but i've used Zxing Library for Barcode/QR code scanning and that worked for me.

here's a sample how to use this library:

// create a barcode reader instance
IBarcodeReader reader = new BarcodeReader();
// load a bitmap
var barcodeBitmap = (Bitmap)Bitmap.LoadFrom("C:\\sample-barcode-image.png");
// detect and decode the barcode inside the bitmap
var result = reader.Decode(barcodeBitmap);
// do something with the result
if (result != null)
{
   txtDecoderType.Text = result.BarcodeFormat.ToString();
   txtDecoderContent.Text = result.Text;
}

Documentation and other demoClient is available here

Ask if you require more code. Hope that helps..!