Help me, dll hack

Hi guys, someone knows if there is a tutorial of "how to create a dll" or something, in c++, i know something about c++, but, i want to know if there is a tuto or source code of dll hack undetectable or a way of using the x7 files or lua files in a "dll", i want to know that, i dont want the code made, i just want to know if there is something like that. thanks

So you basically sayin that you know C++ but you still need a code to C&P?

I didn't get you well, try to make it shorter.