The Smart Client has the functionality built-in, on the toolbar when you have a camera view there is the “Create Snapshot” or “Copy to Clipboard”.
If you want to develop your own functionality maybe you can use..
abstract Bitmap VideoOS.Platform.Client.ImageViewerAddOn.GetCurrentDisplayedImageAsBitmap (
)
[pure virtual]
Altenatively you can ask for one picture using JPEGLiveSource.