internalAddAggrLink

...

Syntax

public const string ifcenginedll = @"ifcengine.dll";

[DllImport(IFCEngineDLL, EntryPoint = "internalAddAggrLink")]
public static extern void internalAddAggrLink(Int64 aggregate, Int64 linked_id);    

Property aggregate

Size: 64 bit / 8 byte (reference)
...

Property linked_id

Size: 64 bit / 8 byte (value)
...