How to scan Bar code or QR code in VBCS mobile app?

Summary

Looking for a solution to scan bar and QR code using VBCS mobile application

Content

Hello,

I have requirement to implement VBCS based mobile application to scan and extract data from bar code and QR code. I am using "Take Photo" activity in VBCS action chain to capture image. However, I want to implement it with different approach as below:
1. How to extract data from bar and QR code with capturing the image?(I am looking for solution similar to ex: iPhone's default camera whn hovered on bar or QR code image it can automatically detect that is some kind of code and display the data like URL, etc. on popup.)