F1~10 펑션키 처리

//Form1.Designer.cs
	this.KeyPreview = true;//이거 넣어야 작동함
	this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.From1_KeyDown);


//Form1.cs
	private void From1_KeyDown(object sender, KeyEventArgs e)
        {
            switch(e.KeyCode)
            {
                case Keys.F2:
                    OnKey_F2();
                    //e.Handled = true;
                    break;
                case Keys.F3:
                    OnKey_F3();
                    e.Handled = true;
                    break;
                default:
                    break;
            }
        }