pub unsafe extern "C" fn igListBox_FnStrPtr(
label: *const c_char,
current_item: *mut c_int,
getter: Option<unsafe extern "C" fn(user_data: *mut c_void, idx: c_int) -> *const c_char>,
user_data: *mut c_void,
items_count: c_int,
height_in_items: c_int,
) -> bool