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This topic provides information about the data fields that are specific to the geomagnetic orientation sensor.
Data fields
The following table shows the data fields. For more information about the types shown in the type column, see PROPVARIANT structure.
Property key | Type | Required/Optional | Description/Comments |
---|---|---|---|
PKEY_SensorData_QuaternionW | VT_R4 | Required | Real coefficient (as opposed to the imaginary portion of the complex number). |
PKEY_SensorData_QuaternionX | VT_R4 | Required | X-component of rotational axis vector. |
PKEY_SensorData_QuaternionY | VT_R4 | Required | Y-component of rotational axis vector. |
PKEY_SensorData_QuaternionZ | VT_R4 | Required | Z-component of rotational axis vector. |
PKEY_SensorData_DeclinationAngle_Degrees | VT_R4 | Required | Declination angle. If not supported, the class extension will compute this value. |
PKEY_SensorData_RotationAngle_Degrees | VT_R4 | Required for Windows 10 Mobile Optional for Windows 10 for desktop editions (Home, Pro, Enterprise, and Education) |
Rotation angle, in degrees. Drivers that expose a Device Orientation sensor should use this property key for threshold keys. |