how to pass method handle to dll?

Question

what I want to do is use a dll which write in c++.

I want to pass an event-handler or a method to the dll and when it run the dll will call the event-handler.

function my_func()
{
Console.WriteLin("i am called");
}
[DllImport("my-dll.dll")]
public extern static registerFunc();

Answer 1

Define and pass the delegate. sample can be found here.

https://www.codeproject.com/Tips/393817/Pass-Csharp-Delegate-as-Callback-to-Cplusplus