model input parameter is irrelevant, but is required for backwards compatibility


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

[DllImport(IFCEngineDLL, EntryPoint = "xxxxGetEntityAndSubTypesExtent")]
public static extern Int32 xxxxGetEntityAndSubTypesExtent(Int32 model, Int32 entity);    

Property model

Size: 32 bit / 4 byte (value)
The handle to the model. The model handle is static during its existance. Several models can be opened simultaniously within one session. Different models are always independent, threads are allowed to be running on different models simultaniously.

Property entity

Size: 32 bit / 4 byte (value)