Canon CanoScan D646U User Manual page 7

chapter 1
Before You Begin
Top Page
Glossary
Contents
Index
Normally when you start a scanning job, you will see the ScanGear CS-U
main window with its toolbar, Preview Area, and tabs.
However, some software applications may not open the ScanGear CS-U
main window. When this occurs you cannot use the settings described in
this user's guide because the host software application will provide the
settings so you can change the image after it is acquired. When a
software application uses ScanGear CS-U without opening the ScanGear
CS-U main window, this is called the windowless mode.
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