There are several ways to interoperate between the .NET platform and C++:
P/Invoke (平台调用): This is a way to achieve interoperability by declaring and calling C++ DLL functions. In .NET, you can use the [DllImport] attribute to declare functions in a C++ DLL and use the corresponding data types for parameter passing. This approach is simpler, but requires manual memory management and type conversion.
COM interoperability: COM (Component Object Model) is an object-oriented binary interface standard that allows interoperability of components between different languages and platforms. C++ components can be accessed in .NET using COM interop technology by wrapping them as COM components. This approach requires implementing the COM interface in C++ code, and using COM interop technologies such as the COM interop auto-generation tool in .NET to generate proxy classes.
C++/CLI (C++/Common Language Infrastructure): This is a language extension that allows mixing C++ and .NET code in the same source file. C++/CLI provides direct access to .NET class libraries, while also allowing access and inheritance of existing C++ code. This method provides high flexibility, but requires a certain understanding of C++/CLI syntax and features.
Use third-party libraries: There are some third-party libraries that provide more advanced ways to interoperate between .NET and C++. For example, you can use the Boost.Interprocess library to share memory between .NET and C++, use SWIG (Simplified Wrapper and Interface Generator) to automatically generate cross-language package code, and so on.
Choosing the right approach depends on your specific needs and technology stack. Each method has its advantages and disadvantages, and you can choose the most suitable interoperability method according to project requirements and development experience.