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PATH Mac OS 8 and 9 Developer Documentation > Text Encoding Conversion Manager

Programming With the Text Encoding Conversion Manager

UnicodeMapping

A Unicode mapping structure contains a complete text encoding specification for a Unicode encoding, a complete text encoding specification giving the encoding for the text to be converted to or from Unicode (usually this is for a non-Unicode encoding), and the version of the mapping table to be used for conversion.

struct UnicodeMapping { TextEncoding unicodeEncoding; TextEncoding otherEncoding; UnicodeMapVersion mappingVersion; }; typedef struct UnicodeMapping UnicodeMapping typedef UnicodeMapping *UnicodeMappingPtr;

unicodeEncoding: A Unicode text encoding specification of type TextEncoding. See Text Encoding Base .
otherEncoding: A text encoding specification for the text to be converted to or from Unicode.
mappingVersion: The version of the Unicode mapping table to be used.

Many Unicode Converter functions take a pointer to a Unicode mapping structure as a parameter. For functions that do not modify the Unicode mapping contents, the Unicode Converter provides a constant pointer to a Unicode mapping structure defined by the ConstUnicodeMappingPtr data type.

typedef const UnicodeMapping *ConstUnicodeMappingPtr;