DOC2_CHAR_FILTER

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typedef enum
{
   DOC2_ZONE_CHAR_FILTER_DEFAULT = 0x0000,
   DOC2_ZONE_CHAR_FILTER_DIGIT = 0x0001,
   DOC2_ZONE_CHAR_FILTER_UPPERCASE = 0x0002,
   DOC2_ZONE_CHAR_FILTER_LOWERCASE = 0x0004,
   DOC2_ZONE_CHAR_FILTER_PUNCTUATION = 0x0008,
   DOC2_ZONE_CHAR_FILTER_MISCELLANEOUS = 0x0010,
   DOC2_ZONE_CHAR_FILTER_PLUS = 0x0020,
   DOC2_ZONE_CHAR_FILTER_ALL = 0x0040,
   DOC2_ZONE_CHAR_FILTER_ALPHA = 0x0080,
   DOC2_ZONE_CHAR_FILTER_NUMBERS = 0x0100,
   DOC2_ZONE_CHAR_FILTER_OCRA = 0x0200,
   DOC2_ZONE_CHAR_FILTER_USER_DICTIONARY = 0x0400,
} DOC2_CHAR_FILTER;

The DOC2_CHAR_FILTER enumerated type represents the possible character set filters for a zone.

Value	Meaning
DOC2_ZONE_CHAR_FILTER_DEFAULT	Have the zone handled globally. Do not combine this with any other filter.
DOC2_ZONE_CHAR_FILTER_DIGIT	Recognize numerals only. Example: "3" (Digit Three).
DOC2_ZONE_CHAR_FILTER_UPPERCASE	Recognize only uppercase letters, including accented ones. Example: "A" (Capital A).
DOC2_ZONE_CHAR_FILTER_LOWERCASE	Recognize only lowercase letters, including accented ones. Example: "a" (Lowercase a).
DOC2_ZONE_CHAR_FILTER_PUNCTUATION	Recognize only punctuation signs. Example.: "!" (Exclamation Mark).
DOC2_ZONE_CHAR_FILTER_MISCELLANEOUS	Recognize only miscellaneous characters. Example: "+" (Plus sign).
DOC2_ZONE_CHAR_FILTER_PLUS	Enable the use of the Filter Plus characters specified by the pCHAROPTIONS2 structure. The Filter Plus characters are added to the language environment after any filtering. This filter can also be used to achieve a very limited character set.
DOC2_ZONE_CHAR_FILTER_ALL	Enable all elements ( no filtering).
DOC2_ZONE_CHAR_FILTER_ALPHA	Recognize only upper and lowercase letters.
DOC2_ZONE_CHAR_FILTER_NUMBERS	Recognize digits, plus the Filter Plus characters set by the L_Doc2SetCharLangsOptions function.
DOC2_ZONE_CHAR_FILTER_OCRA	Recognize the OCR-A characters with digit characters.
DOC2_ZONE_CHAR_FILTER_USER_DICTIONARY	Recognize characters from the user dictionary section assigned to the zone.

Comments

This enumerated type is used by the following structures:

ZONEDATA2

CHAROPTIONS2

Notes

Characters in the document that are not part of the specified Character Set will either be rejected or will be recognized as a validated character with a similar shape.

The capabilities of the selected recognition module can also impose restrictions, e.g. the ASIAN module doesn't support character filters so these filters will not work with Asian recognition module while the Asian language is enabled.