How to integrate QT Desktop application with attached scanners or digital cameras?

[Ankur]

Wanted to explore what are the suitable options to be able to invoke scanner interface from my QT desktop application, take scans and attach the scanned image to my application. I believe there must be some APIs (e.g. TWAIN) available that can be used to achieve this? Would like to hear your experience, recommendations and possibly sample code if possible. Thanks!

[mrdebug]

You can use OpenCV for manage webcams, I don't know that if you can use OpenCV for scanners also.