C#

private const int WM_HSCROLL = 0x0114;
private const int WM_VSCROLL = 0x0115;
protected override void WndProc(ref Message m)
{
  base.WndProc(ref m);
  if (m.Msg == WM_HSCROLL) OnHScroll();
  else if (m.Msg == WM_VSCROLL) OnVScroll();
}
protected virtual void OnHScroll()
{
  // Do something
}
protected virtual void OnVScroll()
{
  // Do something
}

this.button1 = new System.Windows.Forms.Button();
this.SuspendLayout();
// 
// button1
// 
this.button1.Location = new System.Drawing.Point(16, 16);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(144, 23);
this.button1.TabIndex = 0;
this.button1.Text = "Output Debug Break";
this.button1.Click += new System.EventHandler(this.button1_Click);
this.button1.Click += new System.EventHandler(this.button1_Click);
this.button1.Click += new System.EventHandler(this.button1_Click);
.
.  more code...
.
this.button1.Click += new System.EventHandler(this.button1_Click);