[V8i C++] Finding XAttribute data in a model/file

Question

Since XAttribute data is stored ON an element , not IN an element, is it possible to somehow iterate through all the instances of data related to a specific schema without scanning through the graphic elements? If so, how would one approach the problem?

Thanks,

Bruce

Thanks, 
 
 Bruce

Yongan.Fu · Accepted Answer

Actually yes but it is an undocumented function. Its prototype is as below: 
 Public int mdlScanCriteria_setXAttributeTest
(
ScanCriteriaP scP,
struct Bentley::Ustn::Element::XAttributeHandlerId* handlerId, // Pass NULL to clear
UInt32 attrId, // Pass XAttributeHandle::MATCH_ANY_ID for any.
ExtendedAttrBuf* xattrBuf // Can be NULL
);