Question

I need to be able to invoke arbitrary C# functions from C++. In-process Interoperability suggests using ICLRRuntimeHost::ExecuteInDefaultAppDomain(), but this only allows me to invoke methods having this format: int method(string arg)

What is the best way to invoke arbitrary C# functions?

Answer 1

Compile your C++ code with the /clr flag. With that, you can call into any .NET code with relative ease.

For example:

#include <tchar.h> #include <stdio.h>  int _tmain(int argc, _TCHAR* argv[]) {     System::DateTime now = System::DateTime::Now;     printf('%d:%d:%d\n', now.Hour, now.Minute, now.Second);      return 0; } 

Does this count as ‘C++’? Well, it’s obviously not Standard C++ …