프로퍼티(Property) - get, set 사용 example(handle)

/*
csc /reference:Newtonsoft.Json.Net20.dll,ServiceStack.dll,ServiceStack.Interfaces.dll,ServiceStack.ServiceInterface.dll /out:frm01.exe frm01.cs dbmsfrm9801.cs
csc /out:frm01.exe frm01.cs dbmsfrm9801.cs
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;//Marshal
using System.Timers;

class Program
{
    public static void Main(string[] args)
    {
        Application.Run(new CommonLibManage());
    }
}
class dbmsfrm9801 : Form
{
public IntPtr localHandle = IntPtr.Zero;
public IntPtr ____localHandle
{
get{ return localHandle;  }
set{ localHandle = value; }
}

public dbmsfrm9801()
{
localHandle = Handle;

this.Text = "[" + localHandle.ToString() + "]";
}
protected override bool ProcessCmdKey(ref Message m, Keys keyData)
{
const int WM_KEYDOWN = 0x0100;
if(m.Msg==WM_KEYDOWN)
{
switch(keyData.ToString())
{
case "Escape":
Close();
break;
}
}

return base.ProcessCmdKey(ref m, keyData);
}
}
class CommonLibManage : Form
{
public CommonLibManage()
{
//
}
protected override bool ProcessCmdKey(ref Message m, Keys keyData)
{
const int WM_KEYDOWN = 0x0100;
if(m.Msg==WM_KEYDOWN)
{
switch(keyData.ToString())
{
case "Return":
dbmsfrm9801 frm = new dbmsfrm9801();
Console.WriteLine(frm.____localHandle.ToString());
frm.Show();
break;
case "Escape":
Application.Exit();
break;
}
}

return base.ProcessCmdKey(ref m, keyData);
}
}