Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As _
      System.EventArgs) Handles MyBase.Load
        For Each b As Control In Me.Controls
            If TypeOf (b) Is Button Then
                AddHandler b.Click, AddressOf AllButtons_Click
            End If
        Next
    End Sub
 
    Private Sub AllButtons_Click(ByVal sender As Object, ByVal e As EventArgs)
 
    End Sub