File Content Extraction 26.3
Filter SDK Java Programming Guide

# KVOcrDetectAlphabet

This enumerated type defines the options that are available for alphabet detection during Optical Character Recognition (OCR). This enumerated type is defined in `kvocroptions.h`.

For information about using these options, see Optimize OCR Performance.

## Definition

    typedef enum TAG_KVOcrDetectAlphabet
    {
        KVOcrOff    = 0,
        KVOcrListed = 1,
        KVOcrAll    = 2
    } KVOcrDetectAlphabet;

## Enumerators

`KVOcrOff` | OCR does not detect the alphabet.
`KVOcrListed` | OCR detects the alphabet, but only considers alphabets that are represented in your chosen list of languages.
`KVOcrAll` | OCR detects the alphabet that is used, and considers all alphabets.

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Version 26.3 | Last updated July 2026

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Product: File Content Extraction 26.3

Topic Title: KVOcrDetectAlphabet