Callback OnImageProgress(devName, perc)
Called when an image capture is being performed and transferred.
Device name from the Config Tool.
The percentage of transfer complete, from 0 through 100.
The callback will be fired once per operation in every frame of every browser, unless the frame, based upon it's current URL, does not have the required scripting trust level.
KioWare for Windows version 8.25 or greater.