Function x11nas::xt::XtAppSetErrorMsgHandler

pub unsafe extern "C" fn XtAppSetErrorMsgHandler(
    _2: XtAppContext, 
    _1: Option<unsafe extern "C" fn(_: *mut c_char, _: *mut c_char, _: *mut c_char, _: *mut c_char, _: *mut *mut c_char, _: *mut c_uint)>
) -> Option<unsafe extern "C" fn(_: *mut c_char, _: *mut c_char, _: *mut c_char, _: *mut c_char, _: *mut *mut c_char, _: *mut c_uint)>