2.5.167 XLNullableWideString
The XLNullableWideString specifies a length-prefixed Unicode string that can additionally specify a string that is NULL. For convenience, references to characters in a string specified by this or a derived type use those Unicode characters.
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cchCharacters |
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rgchData (variable) |
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cchCharacters (4 bytes): An unsigned integer that specifies the number of characters. This value MUST be 0xFFFFFFFF if a NULL string is specified.
rgchData (variable): An array of Unicode characters that specifies the characters of the string. If a NULL string is specified, the size of this array in bytes MUST be 0. If a NULL string is not specified, the size of this array in bytes MUST equal the following formula:
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size = cchCharacters * 2