From: Peter Constable (petercon@microsoft.com)
Date: Fri Oct 12 2007 - 10:10:30 CDT
From: unicode-bounce@unicode.org [mailto:unicode-bounce@unicode.org] On Behalf Of John Hudson
> ? is used by many Windows apps (and elsewhere?) to indicate
> an unknown character, as distinct from a known but unsupported
> character. So, for instances, non-Unicode apps may display any
> 16 bit Unicode character as ??
Actually, I think what's happening is that "?" is used as the default code page mapping for characters not supported in a code page. So, if an app takes Unicode data and pumps it into (say) code page 1252, then a character like U+0915 will map into 0x3F "?".
Peter
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