Function igListBox_FnStrPtr

pub unsafe extern "C" fn igListBox_FnStrPtr(
    label: *const i8,
    current_item: *mut i32,
    getter: Option<unsafe extern "C" fn(_: *mut c_void, _: i32) -> *const i8>,
    user_data: *mut c_void,
    items_count: i32,
    height_in_items: i32,
) -> bool