How to access a digital camera on .NET

We're interested in accessing a digital camera from a .NET application, i.e., the users makes some photos, then connects the camera to a computer and automatically the system imports the photos and make some related questions.

What's the best way to do it?, TWAIN, WIA, WPD, USB directly?, any experiences?

Many tha开发者_运维百科nks in advance

In practically all cases a digital camera appears as a Disk in the computer when it is connected via USB or FireWire, so it would be very easy to monitor a particular unit (E: for example) and if that unit appears launch a process that scans the folders and copy the new files to a given path.

If your camera is not detected as a drive when connected then you will be forced to use the SDK if there is one.