Character conversion data for one of the character sets which is specified in a modal character set encoding. An array of these structs is used when converting from a modal character set into Unicode, using CnvUtilities::ConvertToUnicodeFromModalForeign(). Neither of the members may be NULL.
The escape sequence which introduces the character set, i.e. it identifies this character set as the next one to use. This must begin with KControlCharacterEscape.