Need a good sample code where I can call a callback function from c# dll into a c++ code. RRS feed

  • Question

  • I have a c# dll witch receives makes calculation and generates results, when this is done, I like to invoke a callback function into c++ exe. Thanks

    Tuesday, July 3, 2018 2:41 PM

All replies

  • Normally you create a delegate from the function pointer and call that. How you get the delegate depends on where/how you get the function pointer. If you use a delegate type in the pinvoke or com method signature, then the marshaler will create the delegate from the function pointer for you, otherwise you will probably need to use Marshal.GetDelegateFromFunctionPointer(). In either case, you almost certainly won't be able to use Action<> or Func<> as the delegate type will need to be decorated in much the same way as a pinvoke method.
    Tuesday, July 3, 2018 9:58 PM
  • Hi basem1965,

    Thank you for posting here.

    For your question, please refer to the link below for reference about invoke callback function from C# to C++.



    Best Regards,


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    Wednesday, July 4, 2018 6:14 AM