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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.
B
A
B
A Direction of scan TWFR_FANFOLD The images to be scanned are viewed in fanfold paper style, flipping each page up or down.
B
A
B
A Direction of scan
On duplex paper, the As are all located on the top, and the Bs are all located on the bottom. If ICAP_FLIPROTATION is set to TWFR_BOOK, and fanfold paper is scanned, then every B image will be upside down. Setting the capability to TWFR_FANFOLD instructs the Source to rotate the B images 180 degrees around the x-axis.
Because this capability is described to act upon every other image, it will work correctly in simplex mode, assuming that every other simplex image is flipped in the manner described above.
Type: TW_UINT
Value after MSG_OPENDS: (may be remembered from a previous session)
After MSG_RESET/MSG_RESETALL: TWFR_BOOK
Allowed Values: TWFR_BOOK TWFR_FANFOLD
MSG_GET TW_ONEVALUE TW_ENUMERATION
MSG_GETCURRENT TW_ONEVALUE
MSG_GETDEFAULT TW_ONEVALUE
MSG_SET TW_ONEVALUE
MSG_SETCONSTRAINT TW_ONEVALUE
TW_ENUMERATION
MSG_RESET TW_ONEVALUE
MSG_QUERYSUPPORT TW_ONEVALUE
None
Version 1.8
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