Good afternoon,

I wasn't quite sure where to place this question since I could not find a
newsgroup dedicated to globalization. If somebody knows a place where I
should be posting instead, please let me know.

I am in the process of changing an application to support East Asian
languages as well. In the process of research I have run across various ways
that fonts are substituted or linked (e.g., MS Shell Dlg 2) and have also
read much about OpenType fonts. I have been unable to gain a clear
understanding of how OpenType fonts handle the extended characters needed for
East Asian languages. My understanding at this time is that an OpenType font
can, for a given missing UNICODE glyph, have an internal directive towards a
font that does have the glyph in question (not referrring to the Font Linking
that Windows does through the registry, but referring to something internal
to the OpenType Font itself).

Microsoft provides Times New Roman, Arial, Lucida, and Courier New as
OpenType fonts. What is the process by which these fonts find substitutes
for missing glyphs?

Thank you!

--
James