Introduction

So you have to or want to develop a native component (typically a DLL written in C or C++) with a simple API and you need to use it from another component developed in C#.
You know that you can use the DllImport mechanism and you’ve seen the 156387 tutorials that show how to make it with kernel32.dll (and by the way this is sometimes only what you need).
You’ve also seen some tutorials that to illustrate what you think is a simple matter are using huge codes and made you scream “pleeaaase get to the point!”, or the ones that ask you to setup a Visual Studio project but you want to avoid useless plumbing and understand what happens under the hood.
You’ve tried by yourself and feel you’re almost there but you still have errors and start to feel frustrated.

The good news are : first you’re right when you think DllImport is straightforward for simple interfaces, second this is the no-overengineering, no-overhead, no-nonsense, KISS tutorial for it.

So keep reading and in 10 minutes you’ll DllImport (almost) like a pro.
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