// The volume range is 0-0xffff.

 UINT MaxDevs = waveOutGetNumDevs();
 WAVEOUTCAPS woc;
 for (UINT DID = 0; DID < MaxDevs - 1; DID++)
 {
  MMRESULT res = waveOutGetDevCaps(DID, &woc, sizeof(AUXCAPS));
  if ((res == MMSYSERR_NOERROR) && (woc.dwSupport & WAVECAPS_LRVOLUME)) break;
 }
 if (DID == MaxDevs - 1) DID = AUX_MAPPER;

// MASTER VOLUME
#define MLEFTVOL  0x1000
#define MRIGHTVOL 0x1000
 auxSetVolume(DID, MAKELONG(MLEFTVOL, MRIGHTVOL));

// WAVE VOLUME
#define WLEFTVOL  0x8000
#define WRIGHTVOL 0x8000
 waveOutSetVolume((HWAVEOUT)DID, MAKELONG(WLEFTVOL, WRIGHTVOL));

//Updated on 13rd Sep 2001, now detects the waveOut volume device ID.