Windows Core Audio API : How can I access multiple Volume levels of a USB Device

[kinaar]

For an audio device Control Software we need to access the different Windows volume levels of our device (Speaker level and Microphone level). We are using the Windows Core Audio API and right now we are able to access the Speaker level using a IAudioEndpointVolume. But for the Microphone level, as the control is located in the Speaker window, it becomes a bit tricky and we didn't managed yet.Screenshot of the ControlsWe tried to get a IAudioEndpointVolume out of the Capture device :// Activate Callback for Input device_enumerator->GetDefaultAudioEndpoin

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