Function x11nas::xt::XtAddInput

pub unsafe extern "C" fn XtAddInput(
    _4: c_int, 
    _3: *mut c_void, 
    _2: Option<unsafe extern "C" fn(_: *mut c_void, _: *mut c_int, _: *mut c_ulong)>, 
    _1: *mut c_void
) -> c_ulong