// winbio_ioctl.h

typedef struct _WINBIO_SUPPORTED_ALGORITHMS {
  DWORD       PayloadSize;
  HRESULT     WinBioHresult;
  DWORD       NumberOfAlgorithms;
  WINBIO_DATA AlgorithmData;
} WINBIO_SUPPORTED_ALGORITHMS, *PWINBIO_SUPPORTED_ALGORITHMS;
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Windows Driver Kit DDI reference (ns-winbio_ioctl-_winbio_supported_algorithms)

_WINBIO_SUPPORTED_ALGORITHMS structure

Description

The WINBIO_SUPPORTED_ALGORITHMS structure is the OUT payload for IOCTL_BIOMETRIC_GET_SUPPORTED_ALGORITHMS.

Members

`PayloadSize`

Specifies the total size of the payload, which includes the fixed length structure and any variable data at the end.

`WinBioHresult`

Specifies the HRESULT status of the I/O operation.

`NumberOfAlgorithms`

Specifies the number of algorithms in the data block.

`AlgorithmData`

Specifies a structure of type WINBIO_DATA that contains NULL-terminated UTF-8 OID strings that represent the algorithms supported by the device.

WINBIO_SUPPORTED_ALGORITHMS - NtDoc