'宣言
Public Class Printer Inherits System.Drawing.Printing.PrintDocument
public class Printer : System.Drawing.Printing.PrintDocument
'宣言
Public Class Printer Inherits System.Drawing.Printing.PrintDocument
public class Printer : System.Drawing.Printing.PrintDocument
System.Object
System.MarshalByRefObject
System.ComponentModel.Component
System.Drawing.Printing.PrintDocument
GrapeCity.ActiveReports.Extensibility.Printing.Printer