2.9.82 FFN
The FFN structure specifies information about a font that is used in the document. This information MUST be complete for each font. In addition to specifying a specific named font, this information is intended for the purpose of font substitution when that named font is not available.
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ffid |
wWeight |
chs |
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ixchSzAlt |
panose |
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fs (24 bytes) |
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xszFfn (variable) |
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xszAlt (variable) |
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ffid (1 byte): An FFID that specifies the font family.
wWeight (2 bytes): A signed integer that specifies the visual weight of the font. This value MUST be between 0 and 1000. A value of 700 corresponds to bold text. A value of 400 corresponds to normal text.
chs (1 byte): An unsigned integer that specifies the character set that is used by the font. This MUST be one of the following values.
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Value
Meaning
0
ANSI_CHARSET
1
DEFAULT_CHARSET
2
SYMBOL_CHARSET
128
SHIFTJIS_CHARSET
129
HANGEUL_CHARSET
129
HANGUL_CHARSET
134
GB2312_CHARSET
136
CHINESEBIG5_CHARSET
255
OEM_CHARSET
130
JOHAB_CHARSET
177
HEBREW_CHARSET
178
ARABIC_CHARSET
161
GREEK_CHARSET
162
TURKISH_CHARSET
163
VIETNAMESE_CHARSET
222
THAI_CHARSET
238
EASTEUROPE_CHARSET
204
RUSSIAN_CHARSET
77
MAC_CHARSET
186
BALTIC_CHARSET
ixchSzAlt (1 byte): An unsigned integer that specifies the zero-based index into the xszFfn. If nonzero, this value specifies the location within xszFfn where xszAlt begins.
panose (10 bytes): A Panose that specifies font attributes for TrueType fonts.
fs (24 bytes): A FontSignature, as specified in [MC-FONTSIGNATURE], that specifies the Unicode Subset Bitfields of the font, as specified in [MC-USB], and Code Page Bitfields, as specified in [MC-CPB].
xszFfn (variable): A null-terminated Unicode string that MUST contain the name of the font.
xszAlt (variable): A null-terminated Unicode string that specifies the name of an alternative font, intended for font substitution if the font specified by xszFfn is not available. This field, if it exists, begins immediately after the terminating null character of xszFfn. If ixchSzAlt is nonzero, this string MUST exist, otherwise it MUST NOT exist.