The MM_WOM_DONE message is sent to a window when the given output buffer is being returned to the application. Buffers are returned to the application when they have been played, or as the result of a call to the waveOutReset function.
MM_WOM_DONE wParam = (WPARAM) hOutputDev lParam = (LONG) lpwvhdr
Handle to the waveform-audio output device that played the buffer.
Pointer to a WAVEHDR structure identifying the buffer.
This message does not return a value.
** Windows NT/2000/XP:** Included in Windows NT 3.1 and later.
** Windows 95/98/Me:** Included in Windows 95 and later.
** Header:** Declared in Mmsystem.h; include Windows.h.