WIA_BARCODE_INFO structure (wiadef.h)

The WIA_BARCODE_INFO structure stores information for one decoded barcode.

Syntax

typedef struct _WIA_BARCODE_INFO {
  DWORD Size;
  DWORD Type;
  DWORD Page;
  DWORD Confidence;
  DWORD XOffset;
  DWORD YOffset;
  DWORD Rotation;
  DWORD Length;
  WCHAR Text[1];
} WIA_BARCODE_INFO;

Members

Size

The total size of this structure, in bytes.

Type

The barcode type. One of the WIA_IPS_SUPPORTED_BARCODE_TYPES values.

Page

The page number where the barcode was detected. A zero-based index referring to the current scan job.

Confidence

The confidence level. A value in the range from 0 (no confidence) to 10 (maximum confidence).

XOffset

The horizontal coordinate, in pixels (relative to the scanned image), where the top-left origin of the barcode was detected. This value can be 0 if it is unknown.

YOffset

The vertical coordinate, in pixels (relative to the scanned image), where the top-left origin of the barcode was detected. This value can be 0 if it is unknown.

Rotation

The rotation of the barcode, in degrees. A value in the rage from 0 to 359. This value can be 0 if it is unknown.

Length

The number of text characters in the character string containing the decoded barcode text, excluding the length of the NULL terminator.

Text[1]

Placeholder for the character string containing the decoded barcode text (double byte characters, NULL terminated).

Requirements