Surrogate Unicode Fonts

Version 2.0 of Unicode supports over one million code points by 4-byte (32 bit) surrogates — pairs of 16-bit unicode characters.

The first (high) surrogate is a 16-bit code value in the range U+D800 to U+DBFF.

The second (low) surrogate is a 16-bit code value in the range U+DC00 to U+DFFF.

Microsoft OS Support

Microsoft began supporting surrogates with Windows 2000 (not 95/98/Me) with cmap 12 OpenType font format and surrogate-enabled IMEs.

Because surrogate support is disabled by default on Windows 200x & XP, two registry values must be set to enable surrogate support:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\LanguagePack] SURROGATE=(REG_DWORD)0x00000002

[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\Scripts\42] IEFixedFontName=[Surrogate Font Face Name] IEPropFontName=[Surrogate Font Face Name]

Unix OS Support

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Java Support

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