//----------------------------------------------------------------------------
// Copyright (C) 2013-2015 Fabrice HARROUET (ENIB)
//
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appear in all copies and
// that both that copyright notice and this permission notice appear
// in supporting documentation.
// The author makes no representations about the suitability of this
// software for any purpose.
// It is provided "as is" without express or implied warranty.
//----------------------------------------------------------------------------

using System;
using System.Windows.Forms;
using System.Drawing;

public class MyForm : Form
{
protected static int _count=0;

public
MyForm() // see http://zetcode.com/gui/csharpwinforms/
  {
  ++_count;
  this.Text=_count+": Hello C# World";
  this.Size=new Size(250,250);

  try { this.Icon=new Icon("favicon.ico"); }
  catch(Exception e) { Console.WriteLine("!!! {0}",e); }

  MainMenu mainMenu=new MainMenu();
  MenuItem file=mainMenu.MenuItems.Add("&File");
  file.MenuItems.Add(new MenuItem("Close &Window",
                                  new EventHandler(this._onClose),
                                  Shortcut.CtrlW));
  file.MenuItems.Add(new MenuItem("&Quit",
                                  new EventHandler(this._onQuit),
                                  Shortcut.CtrlQ));
  this.Menu=mainMenu;

  Panel pnl1=new Panel();
  pnl1.Parent=this;
  pnl1.Dock=DockStyle.Fill;

  Panel pnl2=new Panel();
  pnl2.Parent=this;
  pnl2.Dock=DockStyle.Bottom;
  pnl2.SizeChanged+=new EventHandler(_onSizeChanged);

  StatusBar sb=new StatusBar();
  sb.Parent=this;
  sb.Text="Ready";

  TextBox tb=new TextBox();
  tb.Parent=pnl1;
  tb.Dock=DockStyle.Fill;
  tb.Multiline=true;

  Button btn1=new Button();
  btn1.Parent=pnl2;
  btn1.Text="Btn1";
  btn1.Location=new Point(30,10);
  btn1.Click+=new EventHandler(_onButtonClick);
  btn1.MouseEnter+=new EventHandler(_onMouseEnter);

  Button btn2=new Button();
  btn2.Parent=pnl2;
  btn2.Text="Btn2";
  btn2.Location=new Point(100,10);
  btn2.Anchor=AnchorStyles.Right;
  btn2.Click+=new EventHandler(_onButtonClick);
  btn2.MouseEnter+=new EventHandler(_onMouseEnter);

  this.Closed+=new EventHandler(_onClosed);
  this.CenterToScreen();

  Console.WriteLine("Form Handle: {0:x}",(ulong)Handle);
  }

protected
void
_onSizeChanged(object sender,
               EventArgs evt)
  {
  Console.WriteLine("_onSizeChanged: sender={0} evt={1}",sender,evt);
  Console.WriteLine("Handle: {0:X}  Width: {1}  Height: {2}",
                    (ulong)Handle,Width,Height);
  }

protected
void
_onButtonClick(object sender,
               EventArgs evt)
  {
  Console.WriteLine("_onButtonClick: sender={0} evt={1}",sender,evt);
  if(_count>1)
    MessageBox.Show("Button Clicked!");
  else
    new MyForm().Show();
  }

protected
void
_onMouseEnter(object sender,
              EventArgs evt)
  {
  Console.WriteLine("_onMouseEnter: sender={0} evt={1}",sender,evt);
  }

protected
void
_onClose(object sender,
         EventArgs evt)
  {
  Console.WriteLine("_onClose: sender={0} evt={1}",sender,evt);
  Close();
  }

protected
void
_onQuit(object sender,
        EventArgs evt)
  {
  Console.WriteLine("_onQuit: sender={0} evt={1}",sender,evt);
  Application.Exit();
  }

protected
void
_onClosed(object sender,
          EventArgs evt)
  {
  Console.WriteLine("_onClosed: sender={0} evt={1}",sender,evt);
  if(--_count==0) { Console.WriteLine("Last close"); Application.Exit(); }
  }
}

public class Test
{
public static
void
Main(string[] args)
  {
  new MyForm().Show();
  Application.Run();
  }
}

//----------------------------------------------------------------------------