CSET (Character Set) Chunk

To define character-set and language information for a RIFF file, use the CSET chunk. The CSET chunk defines the code page and country, language, and dialect codes for the file. These values can be overridden for specific file elements; see Usage Codes for Extra Header and Extra Entry Fields for information on specifying character set information in a compound file.

The CSET chunk is defined as follows:

<CSET chunk>  CSET(<usCodePage:USHORT>
                        <usCountryCode:USHORT>
                        <usLanguageCode:USHORT>
                        <usDialect:USHORT> )

The fields are as follows:

Field

Description
usCodePage
Specifies the code page used for file elements. If the CSET chunk is not present, or if this field has value zero, assume standard ISO 8859/1 code page (identical to code page 1004 without code points defined in hex columns 0, 1, 8, and 9).
usCountryCode
Specifies the country code used for file elements. See Country Codes, for a list of currently defined country codes.

If the CSET chunk is not present, or if this field has value zero, assume USA (country code 001).

usLanguage, usDialect
Specify the language and dialect used for file elements. See Language and Dialect Codes for a list of language and dialect codes.

If the CSET chunk is not present, or if these fields have value zero, assume US English (language code 9, dialect code 1).

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