C++/CLI: preventing garbage collection on managed wrapper of unmanaged resource

Question

I have a C++ unmanaged class NativeDog that needs to be used from C#, so I\'ve create a wrapper class ManagedDog.

// unmanaged C++          


        

Answer 1

In your managed code, add GC.KeepAlive(dog) following the call to FeedDogManaged():

http://msdn.microsoft.com/en-us/library/system.gc.keepalive(VS.71).aspx

Answer 2

You need a GC::KeepAlive() call in your FeedDogManaged function. Seems like it is an exact use case for that.