This function saves the model as an array.


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

public delegate void WriteCallBackFunction(IntPtr value, Int64 size);

[DllImport(IFCEngineDLL, EntryPoint = "engiSaveModelByStream")]
public static extern void engiSaveModelByStream(Int32 model, [MarshalAs(UnmanagedType.FunctionPtr)] WriteCallBackFunction callback, Int32 size);    

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 callback

Size: 32 bit / 4 byte (reference)
The pointer to the function that will be called within this function. Please look at the examples how to create the callback function and how it will be called. In case this is not possible or complex there is an array call, technically the same call, however the callback function is embedded within the library.

Property size

Size: 32 bit / 4 byte (value)
The size of the content as defined in number of bytes.