Queries the attributes of a conversion object.
#include <uconv.h>
UconvObject uobj;
uconv_attribute_t *attr;
size_t size;
CHAR first[256];
CHAR other[256];
udcrange_t udcrange[32];
int result;
result = UniQueryUconvObject(uobj, attr, size,
first[256], other[256],
udcrange[32]);