Method setVolume

src/VolumeControl.cpp:321–388

}

void VolumeControl::setVolume(int volume)
{
	//clamp to 0-100 range
	if (volume < 0)
	{
		volume = 0;
	}
	if (volume > 100)
	{
		volume = 100;
	}
	//store values in internal variables
	internalVolume = volume;
#if defined (__APPLE__)
    #error TODO: Not implemented for MacOS yet!!!
#elif defined(__linux__)
	if (mixerElem != nullptr)
	{
		//get volume range
		long minVolume;
		long maxVolume;
		if (snd_mixer_selem_get_playback_volume_range(mixerElem, &minVolume, &maxVolume) == 0)
		{
			//ok. bring into minVolume-maxVolume range and set
			long rawVolume = (volume * (maxVolume - minVolume) / 100) + minVolume;
			if (snd_mixer_selem_set_playback_volume(mixerElem, SND_MIXER_SCHN_FRONT_LEFT, rawVolume) < 0 
				|| snd_mixer_selem_set_playback_volume(mixerElem, SND_MIXER_SCHN_FRONT_RIGHT, rawVolume) < 0)
			{
				LOG(LogError) << "VolumeControl::getVolume() - Failed to set mixer volume!";
			}
		}
		else
		{
			LOG(LogError) << "VolumeControl::getVolume() - Failed to get volume range!";
		}
	}
#elif defined(WIN32) || defined(_WIN32)
	if (mixerHandle != nullptr)
	{
		//Windows older than Vista. use mixer API. get volume from line control
		MIXERCONTROLDETAILS_UNSIGNED value;
		value.dwValue = (volume * 65535) / 100;
		MIXERCONTROLDETAILS mixerControlDetails;
		mixerControlDetails.cbStruct = sizeof(MIXERCONTROLDETAILS);
		mixerControlDetails.dwControlID = mixerControl.dwControlID;
		mixerControlDetails.cChannels = 1; //always 1 for a MIXERCONTROL_CONTROLF_UNIFORM control
		mixerControlDetails.cMultipleItems = 0; //always 0 except for a MIXERCONTROL_CONTROLF_MULTIPLE control
		mixerControlDetails.paDetails = &value;
		mixerControlDetails.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
		if (mixerSetControlDetails((HMIXEROBJ)mixerHandle, &mixerControlDetails, MIXER_SETCONTROLDETAILSF_VALUE) != MMSYSERR_NOERROR)
		{
			LOG(LogError) << "VolumeControl::setVolume() - Failed to set mixer volume!";
		}
	}
	else if (endpointVolume != nullptr)
	{
		//Windows Vista or above. use EndpointVolume API
		float floatVolume = 0.0f; //0-1