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Hi,
I would like to get all the types and methods from the .NET core assembly from the unmanaged C++ code.
Then I want to invoke the method from the unmanaged C++ by hosting the .NET core runtime.
It should be some thing like, I need to load the .NET Core assembly in C++ and expecting to return the __Assembly object, from there I need to explore all the types and methods provided by this assembly. Then execute the method from the C++.
I couldnt find any documentation to get the types and methods of the .NET Core assembly using Unmanaged API. I found docs for .Net framework, but it is failing for the .Net core assembly.
Please let me know, how to get the below information for the .Net Core assembly:
1- How can I explore the .NET core assembly using reflection from the unmanaged C++ code.
2- How can I invoke the .NET Core assembly method from the unmanaged C++ code.
3- Or is there Microsoft documentation for the UnManaged API reference for the .Net Core ?
4- Is there any way/technic to distinguish .Net framework assembly and .Net Core assembly ?
Thanks
Hi @62387145 ,
There is no concept of .net in C++, and the commonly used method is to use CLR projects to mix C++ and C#.
Most of the APIs of .net core are Web APIs, if you need, you could refer to this issue.
In a CLR project you can use the following statement to determine whether the current project is .net framework or .net core .
#include "pch.h"
using namespace System;
int main(array<System::String ^> ^args)
{
System::Console::WriteLine(System::Runtime::InteropServices::RuntimeInformation::FrameworkDescription);
return 0;
}
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While doable, your is an advanced project. C# is designed to interact with native apis (C/C++) via parameters marshaling via attributes and p-invoke method. The focus is on C# calling C/C++ methods, and handling callbacks. you want C/C++ to call generic methods that have not been prepped.
first your C/C++ code must host the .net core dll via the core cli. the car will load the C# code, and will interpret or jit and execute the IL code.
https://learn.microsoft.com/en-us/dotnet/core/tutorials/netcore-hosting
here is the source:
https://github.com/dotnet/runtime/blob/main/docs/design/features/native-hosting.md
here is an example of call reflection:
https://ofstack.com/C++/16317/reflection-calls-the.net-method-in-c++.html
you might find it easier to write a C# library that implements the reflection features you want and then host this library.