How to convert the returned interface variable by a method to object?

[jozefizso]

Issue from Tue, 07 May 2013 12:02:46 GMT Originally opened at https://clrinterop.codeplex.com/workitem/10981

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Hi,
I am using a c# wrapper, in the c++ library, the called function returns a pointer to the class object.
In the c# wrapper, if I call that method it returns an interface variable.
That interface variable is null, so I am unable gets the values.
How should I handle that interface variable in order to get values.
Anyone please help me.