Hi Steeve!
you can call the ShowScrollBar API :
'***
Private Const SB_HORZ As Int32 = 0
Private Const SB_VERT As Int32 = 1
Private Const SB_CTL As Int32 = 2
Private Const SB_BOTH As Int32 = 3
'BOOL ShowScrollBar(
' HWND hWnd,
' int wBar,
' BOOL(bShow)
<DllImport("user32.dll")> _
Private Shared Function ShowScrollBar _
( _
ByVal hWnd As IntPtr, _
ByVal wBar As Int32, _
ByVal bShow As Boolean) As Boolean
'
End Function
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Button1.Click
' show the both scrollbar
ShowScrollBar(ListBox1.Handle, SB_BOTH, True)
End Sub
'***