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#[cfg(windows)] extern crate winapi;
use std::io::Error;
#[cfg(windows)]
fn alert_message(head: &str,msg: &str,_wflags: i32 ) -> Result<i32, Error> {
use std::ffi::OsStr;
use std::iter::once;
use std::os::windows::ffi::OsStrExt;
use std::ptr::null_mut;
use winapi::um::winuser::{MB_OK, MessageBoxW};
let whead: Vec<u16> = OsStr::new(head).encode_wide().chain(once(0)).collect();
let wmsg: Vec<u16> = OsStr::new(msg).encode_wide().chain(once(0)).collect();
let ret = unsafe {
MessageBoxW(null_mut(), wmsg.as_ptr(), whead.as_ptr(), MB_OK|winapi::um::winuser::MB_ICONEXCLAMATION)
};
if ret == 0 { Err(Error::last_os_error()) }
else { Ok(ret) }
}
#[cfg(not(windows))]
fn alert_message(head: &str,msg: &str,_wflags: i32) -> Result<(), Error> {
println!("{}", msg);
Ok(())
}
pub fn alert(head: &str,msg: &str) {
alert_message( head,msg,0 ).unwrap();
}