using System;
using System.Runtime.InteropServices;
public class Starter {
public static void Main() {
string caption = "Visual C# 2005";
string text = "Hello, world!";
API.ShowMessage(0, text, caption, 0);
}
}
public class API {
[DllImport("user32.dll", EntryPoint = "MessageBox")]
public static extern int ShowMessage(int hWnd,
string text, string caption, uint type);
}