Type Alias PDEVICE_NOTIFY_CALLBACK_ROUTINE 

pub type PDEVICE_NOTIFY_CALLBACK_ROUTINE = Option<unsafe extern "system" fn(context: *const c_void, type: u32, setting: *const c_void) -> u32>;

Aliased Type

pub enum PDEVICE_NOTIFY_CALLBACK_ROUTINE {
    None,
    Some(unsafe extern "system" fn(*const c_void, u32, *const c_void) -> u32),
}

Variants

None

No value.

Some(unsafe extern "system" fn(*const c_void, u32, *const c_void) -> u32)

Some value of type T.