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76 VISIONEER ONETOUCH 9420 USB SCANNER USER’S GUIDE
4. Right-click on Configure Before Scan and choose an interface to
use for configuring before scanning.
Twain—The Basic Interface or Advanced Interface appears for you
to configure the scanning. See “Scanning from the Basic Interface”
on page 25 or “Scanning from the Advanced Interface” on page 29.
WIA—The Windows Image Acquisition (WIA) interface appears
for you to configure the scanning. See “Scanning with the
Windows Image Acquisition” on page 42.
5. Click OK or Apply on the OneTouch Properties window.
SCANNING WITH EVENT FORWARDING
You use event forwarding to specify another application to use for
scanning before you start. A typical example is if you want to use
another application’s TWAIN interface to select scanning options
before you start scanning. When you press the scanner button
designated for event forwarding, the scanner waits to start scanning
until you select the application to use. After you select the application,
its interface opens and you use it to continue scanning.
1. To scan with event forwarding:
2. Open the OneTouch Properties window.
3. Click the tab of the button you want to use for event forwarding.
4. Select Still Image Client as the Destination Application.
5. Choose a Scan Configuration.
6. Click Apply or OK.
7. Start scanning using the button you selected for event forwarding.
A dialog box appears for you to select the application to use for
scanning.
Note: The WIA option is available if your computer is running
Microsoft Windows ME or XP.