Private Sub SaveRestore1(ByVal e As PaintEventArgs)

    ' Translate transformation matrix.
    e.Graphics.TranslateTransform(100, 0)

    ' Save translated graphics state.
    Dim transState As GraphicsState = e.Graphics.Save()

    ' Reset transformation matrix to identity and fill rectangle.
    e.Graphics.ResetTransform()
    e.Graphics.FillRectangle(New SolidBrush(Color.Red), 0, 0, 100, 100)

    ' Restore graphics state to translated state and fill second

    ' rectangle.
    e.Graphics.Restore(transState)
    e.Graphics.FillRectangle(New SolidBrush(Color.Blue), 0, 0, _
    100, 100)
End Sub

' 导入命名空间
Imports System
Imports System.Windows.Forms
Imports System.Drawing
Imports System.Drawing.Drawing2D


Public Class MainClass

  Shared Sub Main()
     Dim form1 As Form1 = new Form1
     Application.Run(form1)
  End Sub
  
End Class

Public Class Form1
  Inherits System.Windows.Forms.Form

  Public Sub New()
    MyBase.New()

    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(504, 629)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
    Me.Text = "Form1"

  End Sub

  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
    Dim R1 As New Rectangle(10, 10, 40, 40)
    e.Graphics.SmoothingMode = SmoothingMode.HighQuality
    e.Graphics.ResetTransform()
    e.Graphics.TranslateTransform(200.0F, 50.0F)
    e.Graphics.DrawArc(Pens.DarkBlue, R1, 40, 160)
  End Sub
End Class