a multiple QR- and bar-code scanner that supports scanning from webcam and local images
Amazon.com : 1D 2D QR Bluetooth Wireless Barcode Scanner, Symcode 3-in-1 Bluetooth & 2.4GHz Wireless & Wired Connection, CCD PDF417 Data Matrix Bar Code Reader for iPad, iPhone,Tablets or Windows Mac Computer :
Webcam Barcode Scanner with HTML5 and Web Browser - CodeProject