Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" _
(ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Const WM_SYSCOMMAND = &H112
Private Const SC_MONITORPOWER = &HF170

'''Turn Off The Monitor
SendMessage Me.hWnd, WM_SYSCOMMAND, SC_MONITORPOWER, ByVal 0&
'''Turn On The Monitor
SendMessage Me.hWnd, WM_SYSCOMMAND, SC_MONITORPOWER, ByVal -1&

Good Luck
-cl