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AET65 API
Version 1.0
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Page 54 of 84
Page 54 of 84
6.3. Flags for Biometric and Image Grabbing Functions
(ABS_FLAG_xxxx)
The following flags can be used for biometric functions.
Note that not all functions accept all flags. See documentation of respective function for more information.
ABS_FLAG_NOTIFICATION 0x1
Enables notification mode of the biometric operation.
In the notification mode the biometric function does not provide any feedback to user until the user
swipes. This is useful for applications running on background, when it's not desired to disturb user
until he swipes.
Whether the GUI dialog should be visible or not is controlled by messages ABS_MSG_DLG_SHOW
and ABS_MSG_DLG_HIDE.
Only functions ABSCapture and ABSVerify support this flag.
ABS_FLAG_AUTOREPEAT 0x2
Enables auto-repeat mode of the biometric operation.
If used, the verification is automatically restarted when the user's swipe does not match any template
in a provided template set.
Only function ABSVerify supports this flag. See documentation of this function for more details.
ABS_FLAG_STRICT_PROFILE 0x4
Requires strict interpretation of raw grab profile.
When set and any of the requested profile data cannot be respected because the FM does not
support it, the raw grab operation fails and ANS_STATUS_NOT_SUPPORTED is returned.
When not set the profile is followed only to degree supported by the device. I.e. those not supported
are
silently
ignored,
and
the
operation
continues.
Please
note
that
profile
key
ABS_PKEY_IMAGE_FORMAT is always interpreted in the strict way.
Only function ABSRawGrab supports this flag.
ABS_FLAG_HIGH_RESOLUTION 0x8
Requires a higher sample image resolution.
Only function ABSGrab supports this flag. Using Function ABSGrab with this flag is a device
alternative to specifying exact desired image format with ABSRawGrab, ABSGrabImage or
ABSRawGrabImage.
With most devices manufactured by Upek, this means using 508x508 DPI instead of normal 381x381
used without the flag, if the device supports it.
