Do I Need C++ Knowledge For Creating Source Engine Console ?

And does anyone know any console source codes (apart from Hell Demon's mini console cause I've already seen it) that I can use to understand how they work? (for educational purposes obviously, I won't be ripping off code without credit)

Sorry if wrong section.

(the game is Vindictus if that matters)

Most of them are based off of my work, so won't be much of a difference.
The ones using a DOS window use AllocConsole like my oldest consoles did.

And yep, you need C++ for it.

You need to use AllocConsole, then have a way for the console to take input and output.
Here is a basic example.