Type Alias lv_observer_t 

pub type lv_observer_t = _lv_observer_t;

The observer object: a descriptor returned when subscribing LVGL widgets to subjects

Aliased Type

#[repr(C)]
pub struct lv_observer_t {
    pub subject: *mut _lv_subject_t,
    pub cb: Option<unsafe extern "C" fn(*mut _lv_observer_t, *mut _lv_subject_t)>,
    pub target: *mut c_void,
    pub user_data: *mut c_void,
    pub _bitfield_align_1: [u8; 0],
    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 1]>,
    pub __bindgen_padding_0: [u8; 7],
}

Fields

subject: *mut _lv_subject_t

< Observed subject

cb: Option<unsafe extern "C" fn(*mut _lv_observer_t, *mut _lv_subject_t)>

< Callback that notifies when value changes

target: *mut c_void

< A target for the observer, e.g. a widget or any pointer

user_data: *mut c_void

< Additional parameter supplied when subscribing

_bitfield_align_1: [u8; 0]

_bitfield_1: __BindgenBitfieldUnit<[u8; 1]>

__bindgen_padding_0: [u8; 7]