Auto-completion for the WINAPI in notepad++

I would like to use notepad++ for programming application however, I can't find anywhere where I can activate auto-completion (something like IntelliSense for VS) for function specifically in the Windows API
I think notepad++ is a better option since it faster and very intuitive

And don't ask me to switch to VS, this IDE is so slow

Anyone have a idea because I lost lot of time copying structures, functions etc...