Flip rotation is used to properly orient images that flip orientation every other image. TWFR_BOOK The images to be scanned are viewed in book form, flipping each page from left to right or right to left. TWFR_FANFOLD The images to be scanned are viewed in fanfold paper style, flipping each page up or down.
None
Integer
TWFR_BOOK(0)
TWFR_BOOK(0), TWFR_FANFOLD(1)
TW_ONEVALUE
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