帮我解释一下这几句话
Private Const WM_SYSCOMMAND = &H112&Private Const SC_MONITORPOWER = &H170&
Private Declare Function SendMessage Lib "user32" Alias "SendMessagea" (ByVal hWnd As Long, ByVal wmsg As Long, ByVal param As Long, ByVal lparam As Long) As Long
OpenDisplay = IIf(SendMessage(Me.hWnd, WM_SYSCOMMAND, SC_MONITORPOWER, -1&) = 0, True, False)
CloseDisplay = IIf(SendMessage(Me.hWnd, WM_SYSCOMMAND, SC_MONITORPOWER, 1&) = 0, True, False)
希望各位能逐句的解释一下，还有能不能告诉我这几句话的作用。
[ 本帖最后由 小J 于 2009-10-12 17:13 编辑 ]
