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Private PBGraphics As Graphics
Private MyPen As New Pen(Color.Red, 3)
Private X, Y as Integer
Private Sub Form1_Load(sender As Object, e As System.EventArgs) Handles Me.Load
Dim myPen As New Pen(Color.Red)
PBGraphics = PictureBox1.CreateGraphics()
End Sub
Private Sub PictureBox1_MouseDown(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseDown
Kreis(X, Y)
End Sub
Sub Kreis(X As Integer, Y As Integer)
PBGraphics.DrawEllipse(MyPen, X - 15, Y - 15, 30, 30)
End Sub