Universal Windows® Apps with XAML and C# Unleashed

Getting an Instance of ImageScanner

Unlike the sensors and other devices, there is no API for retrieving a default image scanner. Instead, you must create one from a specific device ID using the static ImageScanner.FromIdAsync method. If a scanner is connected, you can get its ID with APIs from the Windows.Devices.Enumeration namespace. For example, you can enumerate available scanners as follows:

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foreach (DeviceInformation deviceInfo in await          DeviceInformation.FindAllAsync(DeviceClass.ImageScanner)) {   // Examine each matching device }

You can also use DeviceWatcher, which raises events as devices are added, removed, and updated.

The DeviceInformation instances you get from these mechanisms expose the ...