Crate volumecontrol_macos 

macOS CoreAudio volume control backend.

This crate exposes an AudioDevice type that implements volumecontrol_core::AudioDevice. It exists primarily as an implementation detail of the volumecontrol crate, which selects the correct backend automatically. If cross-platform support is not a concern you may depend on this crate directly.

When the coreaudio feature is not enabled every method returns AudioError::Unsupported, which allows the crate to be compiled on any platform without the CoreAudio SDK.

When the coreaudio feature is enabled the implementation bridges to the native macOS CoreAudio Hardware Abstraction Layer (HAL) via the objc2_core_audio bindings. All unsafe interactions with CoreAudio are contained in the internal module.

Feature flags

Feature	Description	Requires
coreaudio	Enable the real CoreAudio backend via objc2-core-audio	macOS target only

Example

use volumecontrol_macos::AudioDevice;
use volumecontrol_core::AudioDevice as _;

fn main() -> Result<(), volumecontrol_core::AudioError> {
    let device = AudioDevice::from_default()?;
    println!("{device}");  // e.g. "MacBook Pro Speakers (73)"
    println!("Current volume: {}%", device.get_vol()?);
    Ok(())
}

Structs

AudioDevice

Represents a CoreAudio audio output device (macOS).