pub unsafe extern "C" fn lv_indev_add_event_cb(
indev: *mut lv_indev_t,
event_cb: Option<unsafe extern "C" fn(_: *mut lv_event_t)>,
filter: u32,
user_data: *mut c_void,
)
pub unsafe extern "C" fn lv_indev_add_event_cb(
indev: *mut lv_indev_t,
event_cb: Option<unsafe extern "C" fn(_: *mut lv_event_t)>,
filter: u32,
user_data: *mut c_void,
)