WINBIO_PRESENCE_CHANGE Constants
- Article
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Describes the types of changes that can occur when the Windows Biometric Framework monitors the presence of individuals.
| Constant/value |
Description |
- WINBIO_PRESENCE_CHANGE_TYPE_UNKNOWN
- 0
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The type of event is unknown. This value is used for the uninitialized structure.
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- WINBIO_PRESENCE_CHANGE_TYPE_UPDATE_ALL
- 1
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Provides information about all of the faces current in the camera frame.
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- WINBIO_PRESENCE_CHANGE_TYPE_ARRIVE
- 2
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A new face entered the camera frame.
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- WINBIO_PRESENCE_CHANGE_TYPE_RECOGNIZE
- 3
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A face was matched to an enrolled user.
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- WINBIO_PRESENCE_CHANGE_TYPE_DEPART
- 4
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A previously detected face has been out of the camera frame for a period of time.
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- WINBIO_PRESENCE_CHANGE_TYPE_TRACK
- 5
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Provides updates information about the bounding box and reject detail values for a subset of the faces that are currently in the camera frame.
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Requirements
| Requirement |
Value |
Minimum supported client
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Windows 10 [desktop apps only]
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Minimum supported server
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Windows Server 2016 [desktop apps only]
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Header
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- Winbio_types.h (include Winbio.h for client applications or Winbio_adapters.h for adapters)
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