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.
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WINBIO_OPERATION_NONE
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0
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No operation has been identified.
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WINBIO_OPERATION_OPEN
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1
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A biometric session was opened. For more information see WinBioAsyncOpenSession.
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WINBIO_OPERATION_CLOSE
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2
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A biometric session was closed. For more information, see WinBioCloseSession.
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WINBIO_OPERATION_VERIFY
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3
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A biometric sample was verified against a user identity. For more information, see WinBioVerify.
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WINBIO_OPERATION_IDENTIFY
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4
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A biometric sample was captured and compared to an existing template. For more information, see WinBioIdentify.
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WINBIO_OPERATION_LOCATE_SENSOR
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5
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The ID number of a biometric unit was retrieved. For more information, see WinBioLocateSensor.
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WINBIO_OPERATION_ENROLL_BEGIN
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6
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A biometric enrollment sequence was initiated. For more information, see WinBioEnrollBegin.
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WINBIO_OPERATION_ENROLL_CAPTURE
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7
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A biometric sample was captured and added to the template. For more information, see WinBioEnrollCapture.
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WINBIO_OPERATION_ENROLL_COMMIT
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8
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A pending biometric template was finalized. For more information, see WinBioEnrollCommit.
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WINBIO_OPERATION_ENROLL_DISCARD
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9
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A pending biometric template was discarded. For more information, see WinBioEnrollDiscard.
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WINBIO_OPERATION_ENUM_ENROLLMENTS
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10
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The sub-factors for a given template were enumerated. For more information, see WinBioEnumEnrollments.
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WINBIO_OPERATION_DELETE_TEMPLATE
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11
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A biometric template was deleted from the store. For more information, see WinBioDeleteTemplate.
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WINBIO_OPERATION_CAPTURE_SAMPLE
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12
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A biometric sample was captured. For more information, see WinBioCaptureSample.
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WINBIO_OPERATION_GET_PROPERTY
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13
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A biometric session, unit, or template property was retrieved. For more information, see WinBioGetProperty.
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WINBIO_OPERATION_SET_PROPERTY
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14
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A biometric session, unit, template, or account property was set. For more information, see WinBioSetProperty.
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WINBIO_OPERATION_GET_EVENT
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15
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Not used.
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WINBIO_OPERATION_LOCK_UNIT
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16
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A biometric unit was locked for exclusive use by a session. For more information, see WinBioLockUnit.
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WINBIO_OPERATION_UNLOCK_UNIT
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17
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The session lock on a biometric unit was released. For more information, see WinBioUnlockUnit.
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WINBIO_OPERATION_CONTROL_UNIT
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18
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Vendor defined operations were performed on a control unit. For more information, see WinBioControlUnit.
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WINBIO_OPERATION_CONTROL_UNIT_PRIVILEGED
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19
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Privileged vendor defined operations were performed on a control unit. For more information, see WinBioControlUnitPrivileged.
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WINBIO_OPERATION_OPEN_FRAMEWORK
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20
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A handle to the biometric framework was opened.
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WINBIO_OPERATION_CLOSE_FRAMEWORK
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21
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A handle to the biometric framework was closed. For more information, see WinBioCloseFramework.
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WINBIO_OPERATION_ENUM_SERVICE_PROVIDERS
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22
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The installed biometric service providers were enumerated. For more information, see WinBioEnumServiceProviders.
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WINBIO_OPERATION_ENUM_BIOMETRIC_UNITS
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23
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The attached biometric units were enumerated. For more information, see WinBioAsyncEnumBiometricUnits.
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WINBIO_OPERATION_ENUM_DATABASES
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24
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The registered databases were enumerated. For more information, see WinBioEnumDatabases.
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WINBIO_OPERATION_UNIT_ARRIVAL
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25
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A biometric unit was created. For more information, see WinBioAsyncMonitorFrameworkChanges.
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WINBIO_OPERATION_UNIT_REMOVAL
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26
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A biometric unit was deleted. For more information, see WinBioAsyncMonitorFrameworkChanges.
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WINBIO_OPERATION_IDENTIFY_AND_RELEASE_TICKET
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27
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Reserved. This value is supported starting in Windows 10.
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WINBIO_OPERATION_VERIFY_AND_RELEASE_TICKET
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28
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Reserved. This value is supported starting in Windows 10.
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WINBIO_OPERATION_MONITOR_PRESENCE
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29
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The facial recognition or iris monitoring mechanism was turned on. For more information, see WinBioMonitorPresence. This value is supported starting in Windows 10.
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WINBIO_OPERATION_ENROLL_SELECT
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30
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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.
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Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 8 [desktop apps only] |
| Minimum supported server |
Windows Server 2012 [desktop apps only] |
| Header |
|