Public Class Form1
  Inherits System.Windows.Forms.Form

Vom Windows Form Designer generierter Code

  Dim b As Bitmap

  Private Sub Form1_Load(ByVal sender As System.Object, _
         ByVal e As System.EventArgs) Handles MyBase.Load
    b = PictureBox1.Image
  End Sub

  Private Sub Button1_Click(ByVal sender As System.Object, _
          ByVal e As System.EventArgs) Handles Button1.Click
    b.RotateFlip(RotateFlipType.Rotate180FlipX)
    PictureBox1.Image = b
  End Sub

  Private Sub Button2_Click(ByVal sender As System.Object, _
          ByVal e As System.EventArgs) Handles Button2.Click
    b.RotateFlip(RotateFlipType.Rotate90FlipXY)
    PictureBox1.Image = b
  End Sub

  Private Sub Button3_Click(ByVal sender As System.Object, _
          ByVal e As System.EventArgs) Handles Button3.Click
    Me.Close()
  End Sub
End Class