Signals the start of a scanning operation.
| Ö | Imaging for Windows Professional Edition V1.0, V1.1, and V2.0 | 
| Ö | Imaging for Windows 95 and 98 | 
| Ö | Imaging for Windows NT 4.0 | 
Image Scan control
object_ScanStarted
This event is triggered just before the first image page is transfered to the control.