Silverlight / WPF - integrate silverlight app in in asp.net website(4.0) and silverlight(4.0) and read qr code

I am developing a website which needs to capture QR Code Image from web camera and decode it and show it in textbox on aspx page.

i am able to use silver light and get image in silverlight but not able to integrate in aspx page of web page
also i also need to know how to read QR Code in asp.net silverlight.

Any Help Will Be Great Use
Pls Reply!

Silverlight is disconnected from your aspx page.  There is no "integration".  The Silverlight app would need to make an http request to server either in simple form or via a WCF service.

For simple requests, this article demonstrates how to make an http request back to your .aspx page.

http://www.eggheadcafe.com/tutorials/xaml/aac54c47-7990-418f-bac0-a705f7bed500/silverlight-deployed-to-sharepoint-with-active-directory.aspx