Public Class Form1

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

   End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

        Timer1.Start()

    End Sub

    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick

        Timer1.Interval = 1

        Static angle As Long

        Dim rotation_matrix As New System.Drawing.Drawing2D.Matrix

        angle += TextBox1.Text

        rotation_matrix.RotateAt(angle, New PointF(70, 70))

        Dim g = Me.CreateGraphics()

        g.Transform = rotation_matrix

        g.Clear(Color.Black)

        g.DrawString("DEN-SHP", Font, Brushes.Gold, New RectangleF(70, 70, 150, 150))

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

        Timer1.Stop()

    End Sub

End Class