How to subscribe to an event in a C++ library from a C# project?

Question

C++ / C#

Good evening. Tell me how to write a library in C ++ and then connect it to a C # project and bind to an event that occurs in it?
A simple example:
there is a function that every 10 seconds generates the output value "Hello".
The C# program must respond and as soon as an event is generated in the library, display its value, for example, alert.
How to do this?
Thanks

Answer 1

how to write a library in C++ and then include it in a C# project

;-)
It is impossible to harness a Donkey and a quivering doe into one cart .

Answer 2

You can try a delegate and a standard callback.
blogs.msdn.com/b/davidnotario/archive/2006/01/13/5...
Or dig towards COM/C++ CLI

Answer 3

Create an AutoResetEvent in C#, pass SafeHandle. DangerousGetHandle in C++. Now wait in C# with WaitOne (various options) and call SetEvent in C++. And yet, incorrectly, you need a second event in the opposite direction that C# has finished processing the previous event.