pub const BEEP_FREQUENCY_MAXIMUM: u32 = 32767u32; pub const BEEP_FREQUENCY_MINIMUM: u32 = 37u32; #[repr(C)] #[derive(Clone, Copy, Default)] pub struct BEEP_SET_PARAMETERS { pub Frequency: u32, pub Duration: u32, } pub const DD_BEEP_DEVICE_NAME: windows_sys::core::PCSTR = windows_sys::core::s!("\\Device\\Beep"); pub const DD_BEEP_DEVICE_NAME_U: windows_sys::core::PCWSTR = windows_sys::core::w!("\\Device\\Beep"); pub const IOCTL_BEEP_SET: u32 = 65536u32;