'宣言
Public Class Zoom Inherits System.Windows.Forms.Form
public class Zoom : System.Windows.Forms.Form
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
System.Windows.Forms.Control
System.Windows.Forms.ScrollableControl
System.Windows.Forms.ContainerControl
System.Windows.Forms.Form
FarPoint.Win.Spread.DrawingSpace.Zoom