x11::xt

Function XtAppSetWarningMsgHandler

Source 
pub unsafe extern "C" fn XtAppSetWarningMsgHandler(
    _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)>