[beep]

استتخدم هذا الكود
Public Class Form1

Dim g As Graphics = Me.CreateGraphics()
Dim header As String
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Me.Text = " " & Me.Text
Threading.Thread.Sleep(100)
If g.MeasureString(Me.Text, Me.Font).Width >= Me.Width Then
Me.Text = header
End If
End Sub


Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
header = Me.Text
End Sub
End Class