Instance Header API Calls
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Uncategorized API Calls
Geometry Kernel related API Calls
Deprecated API Calls (GENERIC)
Validation
Deprecated API Calls (GEOMETRY)

engiIsAttrOptional

This call can be used to check if an attribute is optional.

Syntax

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

[DllImport(IFCEngineDLL, EntryPoint = "engiIsAttrOptional")]
public static extern bool engiIsAttrOptional(int_t attribute);

Property attribute

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