pub unsafe extern "C" fn XtSetLanguageProc(
_3: XtAppContext,
_2: Option<unsafe extern "C" fn(*mut Display, *mut c_char, *mut c_void) -> *mut c_char>,
_1: *mut c_void,
) -> Option<unsafe extern "C" fn(*mut Display, *mut c_char, *mut c_void) -> *mut c_char>