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#ifndef SSVLSystemAlertVolume_h
#define SSVLSystemAlertVolume_h
#include <AudioToolbox/AudioToolbox.h>
#include <CoreFoundation/CoreFoundation.h>
// Get the system alert volume.
//
// Sets `volume` to the current system alert volume.
//
// Returns the result of `AudioServicesGetProperty`.
OSStatus SSVLGetSystemVolume(Float32 *volume);
// Set the system alert volume.
//
// The input `volume` must be a float between 0 an 1.
//
// Returns the result of `AudioServicesSetProperty`.
OSStatus SSVLSetSystemVolume(Float32 volume);
#endif /* SSVLSystemAlertVolume_h */
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