#define LOG(format, ...) wprintf(format L"\n", __VA_ARGS__)

LOG(
            L"-- waveOut device #%u --\n"
            L"Manufacturer ID: %u\n"
            L"Product ID: %u\n"
            L"Version: %u.%u\n"
            L"Product Name: %s\n"
            L"Formats: 0x%x\n"
            L"Channels: %u\n"
            L"Reserved: %u\n"
            L"Support: 0x%x\n"
            L"%s%s%s%s%s"
            ,
            dev,
            caps.wMid,
            caps.wPid,
            caps.vDriverVersion / 256, caps.vDriverVersion % 256,
            caps.szPname,
            caps.dwFormats,
            caps.wChannels,
            caps.wReserved1,
            caps.dwSupport,
                ((caps.dwSupport & WAVECAPS_LRVOLUME) ?       L"\tWAVECAPS_LRVOLUME\n" :       L""),
                ((caps.dwSupport & WAVECAPS_PITCH) ?          L"\tWAVECAPS_PITCH\n" :          L""),
                ((caps.dwSupport & WAVECAPS_PLAYBACKRATE) ?   L"\tWAVECAPS_PLAYBACKRATE\n" :   L""),
                ((caps.dwSupport & WAVECAPS_VOLUME) ?         L"\tWAVECAPS_VOLUME\n" :         L""),
                ((caps.dwSupport & WAVECAPS_SAMPLEACCURATE) ? L"\tWAVECAPS_SAMPLEACCURATE\n" : L"")
        );