camera windows 32 bits cannot do snapshot
on our tablet front and back camera cannot do photo
but if we remove the "-s" "400x400" then it works, so maybe need to try first with the -s 400x400 and gets catched and then without it, or put a option in preferences (better first try with the catched method)
also note that filename is very long because it contains camera name, check if do not need it on: Util.GetWebcamPhotoTempFileNamePre(string videoDevice)