C# / .NET - DirectX interop && Wave Out Recording

-How am I supposed to go about using DirectX in a C# application ?

-How do I use DirectX to record all audio that goes to the speakers to a .WAV file ?

I have never used DirectX/ DirectSound before but what seems to be the solution is the an audio capture graph object (or something).

Can anyone *please* help me out?

I haven't exlored dx a lot, but try to find "directx interop" in the .net sdk documentation.

Anyway you'll be glad to know that directx 9 can be natively used by C#...