WASAPI Output Support (  WASAPI) 



  WASAPI Output Support (  WASAPI)
  foo_out_wasapi.dll

 WASAPI (Windows Audio Session API) -     , 
          Windows Vista  Windows 7.
   Windows Vista SP1    .

:  ->  ->  ...
 :  ->  ->  WASAPI

 :  WASAPI     Event  Push.  Event      USB . 
      Push.