IKernelLink.EnableObjectReferences Method

Call this method to enable the ability to pass .NET objects "by reference" to Mathematica.

[Visual Basic]
Sub EnableObjectReferences()

[C#]
void EnableObjectReferences();

You must call this before attempting to call PutReference, or Put on an object that will be sent by reference.

You should call this only once on a given link, typically when it is first created.