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WINBIO_CALIBRATION_INFO structure (winbio_ioctl.h)

  • Article

The IOCTL_BIOMETRIC_CALIBRATE IOCTL returns the WINBIO_CALIBRATION_INFO structure as output.

Syntax

typedef struct _WINBIO_CALIBRATION_INFO {
  DWORD       PayloadSize;
  HRESULT     WinBioHresult;
  WINBIO_DATA CalibrationData;
} WINBIO_CALIBRATION_INFO, *PWINBIO_CALIBRATION_INFO;

Members

PayloadSize

The total size of the payload. This includes the fixed length structure and any variable data at the end.

WinBioHresult

The status detail of the I/O operation. This is where WINBIO error and information codes will be passed. The following table shows possible values for this member.

Status value Description
S_OK The operation completed successfully.
HRESULT_FROM_NT(STATUS_IO_DEVICE_ERROR) The driver could not gather the necessary information from the device.
WINBIO_E_DEVICE_BUSY The device is in the middle of a vendor-specific operation. This should only be returned when the device cannot be reset, and the vendor-specific operation cannot be canceled.

CalibrationData

A structure of type WINBIO_DATA that contains calibration data specific to this sensor. This member is optional.

Requirements

Requirement Value
Minimum supported client Available in Windows 7 and later versions of Windows.
Header winbio_ioctl.h