SENSOR_CATEGORY_BIOMETRIC

The SENSOR_CATEGORY_BIOMETRIC category contains sensors that provide information about living beings.

Platform-defined Sensor Types

This category includes the following platform-defined sensor types.

Sensor typeMeaning

SENSOR_TYPE_HUMAN_PRESENCE

Sensors that detect human presence.

SENSOR_TYPE_HUMAN_PROXIMITY

Sensors that detect human proximity.

SENSOR_TYPE_TOUCH

Touch sensors.

 

Platform-defined Data Fields

This category includes the following platform-defined data fields.

Data typeTypeMeaning

SENSOR_DATA_TYPE_HUMAN_PRESENCE

VT_BOOL

VARIANT_TRUE when a human is using the computer.

SENSOR_DATA_TYPE_HUMAN_PROXIMITY_METERS

VT_R4

Distance between a human and the computer, in meters.

SENSOR_DATA_TYPE_TOUCH_STATE

VT_BOOL

VARIANT_TRUE when the touch sensor is being touched, otherwise VARIANT_FALSE.

 

Important   Each platform-defined biometric data type PROPERTYKEY is based on a common GUID that is named SENSOR_DATA_TYPE_BIOMETRIC_GUID. As it is a reserved base value, do not use this GUID to define your own property keys.

Requirements

Minimum supported client

Windows 7

Minimum supported server

None supported

Version

Available in Windows 7.

Header

Sensors.h

 

 

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