WINBIO_OPERATION_TYPE Constants

The following constants can be returned by the Windows Biometric Framework in a WINBIO_ASYNC_RESULT to specify the type of asynchronous operation being performed.

WINBIO_OPERATION_NONE

0

No operation has been identified.

WINBIO_OPERATION_OPEN

1

A biometric session was opened. For more information see WinBioAsyncOpenSession.

WINBIO_OPERATION_CLOSE

2

A biometric session was closed. For more information, see WinBioCloseSession.

WINBIO_OPERATION_VERIFY

3

A biometric sample was verified against a user identity. For more information, see WinBioVerify.

WINBIO_OPERATION_IDENTIFY

4

A biometric sample was captured and compared to an existing template. For more information, see WinBioIdentify.

WINBIO_OPERATION_LOCATE_SENSOR

5

The ID number of a biometric unit was retrieved. For more information, see WinBioLocateSensor.

WINBIO_OPERATION_ENROLL_BEGIN

6

A biometric enrollment sequence was initiated. For more information, see WinBioEnrollBegin.

WINBIO_OPERATION_ENROLL_CAPTURE

7

A biometric sample was captured and added to the template. For more information, see WinBioEnrollCapture.

WINBIO_OPERATION_ENROLL_COMMIT

8

A pending biometric template was finalized. For more information, see WinBioEnrollCommit.

WINBIO_OPERATION_ENROLL_DISCARD

9

A pending biometric template was discarded. For more information, see WinBioEnrollDiscard.

WINBIO_OPERATION_ENUM_ENROLLMENTS

10

The sub-factors for a given template were enumerated. For more information, see WinBioEnumEnrollments.

WINBIO_OPERATION_DELETE_TEMPLATE

11

A biometric template was deleted from the store. For more information, see WinBioDeleteTemplate.

WINBIO_OPERATION_CAPTURE_SAMPLE

12

A biometric sample was captured. For more information, see WinBioCaptureSample.

WINBIO_OPERATION_GET_PROPERTY

13

A biometric session, unit, or template property was retrieved. For more information, see WinBioGetProperty.

WINBIO_OPERATION_SET_PROPERTY

14

A biometric session, unit, template, or account property was set. For more information, see WinBioSetProperty.

WINBIO_OPERATION_GET_EVENT

15

Not used.

WINBIO_OPERATION_LOCK_UNIT

16

A biometric unit was locked for exclusive use by a session. For more information, see WinBioLockUnit.

WINBIO_OPERATION_UNLOCK_UNIT

17

The session lock on a biometric unit was released. For more information, see WinBioUnlockUnit.

WINBIO_OPERATION_CONTROL_UNIT

18

Vendor defined operations were performed on a control unit. For more information, see WinBioControlUnit.

WINBIO_OPERATION_CONTROL_UNIT_PRIVILEGED

19

Privileged vendor defined operations were performed on a control unit. For more information, see WinBioControlUnitPrivileged.

WINBIO_OPERATION_OPEN_FRAMEWORK

20

A handle to the biometric framework was opened.

WINBIO_OPERATION_CLOSE_FRAMEWORK

21

A handle to the biometric framework was closed. For more information, see WinBioCloseFramework.

WINBIO_OPERATION_ENUM_SERVICE_PROVIDERS

22

The installed biometric service providers were enumerated. For more information, see WinBioEnumServiceProviders.

WINBIO_OPERATION_ENUM_BIOMETRIC_UNITS

23

The attached biometric units were enumerated. For more information, see WinBioAsyncEnumBiometricUnits.

WINBIO_OPERATION_ENUM_DATABASES

24

The registered databases were enumerated. For more information, see WinBioEnumDatabases.

WINBIO_OPERATION_UNIT_ARRIVAL

25

A biometric unit was created. For more information, see WinBioAsyncMonitorFrameworkChanges.

WINBIO_OPERATION_UNIT_REMOVAL

26

A biometric unit was deleted. For more information, see WinBioAsyncMonitorFrameworkChanges.

WINBIO_OPERATION_IDENTIFY_AND_RELEASE_TICKET

27

Reserved. This value is supported starting in Windows 10.

WINBIO_OPERATION_VERIFY_AND_RELEASE_TICKET

28

Reserved. This value is supported starting in Windows 10.

WINBIO_OPERATION_MONITOR_PRESENCE

29

The facial recognition or iris monitoring mechanism was turned on. For more information, see WinBioMonitorPresence. This value is supported starting in Windows 10.

WINBIO_OPERATION_ENROLL_SELECT

30

An individual from a group of individuals that are represented by data in the sample buffer was specified as the individual to enroll. For more information, see WinBioEnrollSelect. This value is supported starting in Windows 10.

Requirements

Requirement	Value
Minimum supported client	Windows 8 [desktop apps only]
Minimum supported server	Windows Server 2012 [desktop apps only]
Header	Winbio_types.h (include Winbio.h for client applications or Winbio_adapters.h for adapters)

See also

Client Application Constants