Private Sub Buttons(ByVal sender As System.Object, ByVal e As System.EventArgs) _
Handles Button1.Click, Button2.Click, Button3.Click, Button4.Click
'連續按鈕可以用這種方式來作
Select Case sender.text
Case "+"
scrollControl(TextBox1.Handle, eScrollDirection.Vertical, eScrollAction.Relitive, -5)
Case "-"
scrollControl(TextBox1.Handle, eScrollDirection.Vertical, eScrollAction.Relitive, 5)
Case "50"
scrollControl(TextBox1.Handle, eScrollDirection.Vertical, eScrollAction.Jump, 50)
Case "100"
scrollControl(TextBox1.Handle, eScrollDirection.Vertical, eScrollAction.Jump, 100)
End Select
End Sub