Let’s say you have the following unmanaged code: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 #pragma unmanaged class Stream { ... }; // Conceptual stream class class StreamWriter { public: StreamWriter(Stream* pStream) : m_pStream(pStream) {} ~StreamWriter() { /* Use m_pStream in some way */ } ... private: Stream* m_pStream; }; void f() { Stream stream; StreamWriter streamWriter(&stream); // Use streamWriter // streamWriter is destroyed // stream is destroyed } Note that StreamWriter’s destructor uses m_pStream (perhaps by flushing the stream). Read more...