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title description ms.assetid keywords topic_type api_name api_location api_type ms.topic ms.date
WINBIO_BDB_ANSI_381_HEADER structure (Winbio\_types.h)
Specifies information about a series of fingerprint or palm samples.
8b0caa50-9bba-45c4-b4bf-514540894793
WINBIO_BDB_ANSI_381_HEADER structure Windows Biometric Framework API
apiref
WINBIO_BDB_ANSI_381_HEADER
Winbio_types.h
HeaderDef
reference
05/31/2018

WINBIO_BDB_ANSI_381_HEADER structure

The WINBIO_BDB_ANSI_381_HEADER structure specifies information about a series of fingerprint or palm samples.

Syntax

typedef struct _WINBIO_BDB_ANSI_381_HEADER {
  ULONG64                  RecordLength;
  ULONG                    FormatIdentifier;
  ULONG                    VersionNumber;
  WINBIO_REGISTERED_FORMAT ProductId;
  USHORT                   CaptureDeviceId;
  USHORT                   ImageAcquisitionLevel;
  USHORT                   HorizontalScanResolution;
  USHORT                   VerticalScanResolution;
  USHORT                   HorizontalImageResolution;
  USHORT                   VerticalImageResolution;
  UCHAR                    ElementCount;
  UCHAR                    ScaleUnits;
  UCHAR                    PixelDepth;
  UCHAR                    ImageCompressionAlg;
  USHORT                   Reserved;
} WINBIO_BDB_ANSI_381_HEADER;

Members

RecordLength

The size, in bytes, of this structure plus the size of all WINBIO_BDB_ANSI_381_RECORD structures for the fingerprint or palm samples captured from an end user. Only the low six bytes are valid.

FormatIdentifier

Specifies the format. Currently, this must be 0x46495200.

VersionNumber

Specifies the version number. Currently this must be 0x30313000 which corresponds internally to 0.1.0.0.

ProductId

A WINBIO_REGISTERED_FORMAT structure that contains the registered data format as an owner/type pair.

CaptureDeviceId

Contains the unit ID of the device used to capture the sample.

ImageAcquisitionLevel

Specifies the resolution level at which the sample is captured.

HorizontalScanResolution

Specifies the horizontal resolution of the scan.

VerticalScanResolution

Specifies the vertical resolution of the scan.

HorizontalImageResolution

Specifies the horizontal resolution of the captured fingerprint or palm image.

VerticalImageResolution

Specifies the vertical resolution of the captured fingerprint or palm image.

ElementCount

Number of finger or palm records in this structure.

ScaleUnits

Contains the unit of measure, 1 for inches and 2 for centimeters.

PixelDepth

Specifies the number of bits in a pixel. This can be 1 to 16 bits per pixel for color.

ImageCompressionAlg

Specifies the algorithm used to compress the finger or palm image.

Reserved

Requirements

Requirement Value
Minimum supported client
 Windows 7 [desktop apps only]
Minimum supported server
 Windows Server 2008 R2 [desktop apps only]
Header
Winbio_types.h (include Winbio.h)

See also

Client Application Structures