Csharp/C Sharp by API/System/EventHandler

new EventHandler()

  
using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class ResizeForm : System.Windows.Forms.Form
{
  private System.ruponentModel.Container components;
  public ResizeForm()
  {
    this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
    this.ClientSize = new System.Drawing.Size(292, 273);
    this.Resize += new System.EventHandler(this.ResizeForm_Resize);

  }
  [STAThread]
  static void Main() 
  {
    Application.Run(new ResizeForm());
  }
  private void ResizeForm_Resize(object sender, System.EventArgs e)
  {
    Invalidate();
    Console.WriteLine("Resize");
  }
}