Marshalling in C# is the process of converting data from one format to another, typically between managed code (C# code running on the .NET runtime) and unmanaged code (native code like C or C++ running outside the .NET runtime). This is necessary because managed and unmanaged code have different memory layouts and data representations.
Why do we need Marshalling?
Interoperability: Marshalling allows managed code to communicate with unmanaged code, enabling interoperability between .NET applications and external libraries or systems written in other languages.
Platform Invocation (P/Invoke): When calling functions in unmanaged DLLs from managed code, marshalling is used to pass arguments and return values between the two environments.
COM Interop: When working with Component Object Model (COM) objects from managed code, marshalling is used to convert da...
