Type Alias harfbuzz_sys::hb_buffer_message_func_t

pub type hb_buffer_message_func_t = Option<unsafe extern "C" fn(buffer: *mut hb_buffer_t, font: *mut hb_font_t, message: *const c_char, user_data: *mut c_void) -> hb_bool_t>;

Aliased Type

enum hb_buffer_message_func_t {
    None,
    Some(unsafe extern "C" fn(_: *mut hb_buffer_t, _: *mut hb_font_t, _: *const i8, _: *mut c_void) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut hb_buffer_t, _: *mut hb_font_t, _: *const i8, _: *mut c_void) -> i32)

Some value of type T.