FcCharSetCoverage - DEPRECATED return coverage for a Unicode page
FcChar32 FcCharSetCoverage (const FcCharSet *a, FcChar32page,
DEPRECATED This function returns a bitmask in result which indicates
which code points in page are included in a. FcCharSetCoverage returns
the next page in the charset which has any coverage.
Fontconfig version 2.6.0
31 May 2008 FcCharSetCoverage(3)