i know this topic has been discussed here before but i still can't get it to work. 
i just need to get the current volume in my machine (i'll start there and i guess expanding the functionality of my project will be easier after) using the win 7 SDK and without using code from published projects like [this](http://www.codeproject.com/Articles/18520/Vista-Core-Audio-API-Master-Volume-Control). should i add a particular reference to my project? use dllimport? 
any help would be appreciated