Private Declare Function SetWindowPos Lib "user32" (ByVal _
    hwnd As Long, ByVal hWndInsertAfter As Long, ByVal x As _
    Long, ByVal y As Long, ByVal cx As Long, ByVal cy As _
    Long, ByVal wFlags As Long) As Long

Private Const SWP_NOMOVE = &H2
Private Const SWP_NOSIZE = &H1
Private Const HWND_BOTTOM = 1
Private Const HWND_TOP = 0

Private Sub cmdSendToBack_Click()
Dim flags As Long

    flags = SWP_NOSIZE Or SWP_NOMOVE
    SetWindowPos Me.hwnd, HWND_BOTTOM, 0, 0, 0, 0, flags
End Sub

Private Sub cmdBringToFront_Click()
Dim flags As Long

    flags = SWP_NOSIZE Or SWP_NOMOVE
    SetWindowPos Me.hwnd, HWND_TOP, 0, 0, 0, 0, flags
End Sub