How to find relation between API_AttrTypeID and API_Element?

[Newbie]

I am looking for a way to get linked between API_AttrTypeID and API_Element . Is there anyone know which field can be use to link each other?. My target is to find which attribute is used by which element.

[BerndSchwarzenbacher]

The elements typically have API_AttributeIndex fields which indicate which attributes they are using. Every element has in their header the attribute index of the layer it's on.

And for example a wall has a lot of different attribute indices. For example:

API_AttributeIndex                  buildingMaterial;
API_AttributeIndex                  composite;

But there are a lot more. Some are hidden in override types (API_OverridenAttribute) and pen indices often just have datatype short.

Hope that helps!

Bernd