pub unsafe extern "C" fn XESetErrorString(
    _3: *mut Display,
    _2: c_int,
    _1: Option<unsafe extern "C" fn(_: *mut Display, _: c_int, _: *mut XExtCodes, _: *mut c_char, _: c_int) -> *mut c_char>
) -> Option<unsafe extern "C" fn(_: *mut Display, _: c_int, _: *mut XExtCodes, _: *mut c_char, _: c_int) -> *mut c_char>