File IO API Calls
Schema Reading API Calls
Instance Header API Calls
Instance Reading API Calls
Instance Writing API Calls
Controling API Calls
Uncategorized API Calls
Geometry Kernel related API Calls
Deprecated API Calls (GENERIC)
Validation
Deprecated API Calls (GEOMETRY)

engiGetAttrDerivedBN

This call can be used to check if an attribute is defined schema wise in the context of a certain entity. Technically engiGetAttrDerivedBN will transform into the following call

    engiGetAttrDerived(
            entity,
            sdaiGetAttrDefinition(
                    entity,
                    attributeName
                )
        );

Syntax

C++ 32 bit
C++ 64 bit
C# 32 bit
C# 64 bit
public const string ifcenginedll = @"ifcengine.dll";

[DllImport(IFCEngineDLL, EntryPoint = "engiGetAttrDerivedBN")]
public static extern Int64 engiGetAttrDerivedBN(int_t entity, string attributeName);

[DllImport(IFCEngineDLL, EntryPoint = "engiGetAttrDerivedBN")]
public static extern Int64 engiGetAttrDerivedBN(int_t entity, byte[] attributeName);

Property entity

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

Property attributeName

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