Is it possible to capture the rendering audio session from another process?

Question

I am taking my first dives in to the WASAPI system of windows and I do not know if what I want is even possible with the windows API.

I am attempting to write progra

Answer 1

The mixing takes place inside the API (WASAPI) and you don't have access to buffers of other audio clients, esp. that they don't exist in the context of the current process in first place. Perhaps one's best (not so good, but there are no better alternatives) way would be to hook the API calls and intercept data on its way to WASAPI, if the task in question permits dirty tricks like this.