// 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. | 