| DirectX SDK | 
The IDirectMusicTrack::EndPlay method is called when the object that originally called IDirectMusicTrack::InitPlay is destroyed.
HRESULT EndPlay( void * pStateData );
If the method succeeds, the return value is S_OK.
If it fails, the method can return E_POINTER.
  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in dmusici.h.