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Delphi中 procedure TForm1.Button1Click(Sender: TObject); begin SendMessage(Handle, WM_SYSCOMMAND, SC_MONITORPOWER, 2); end; VB中 Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long Const WM_SYSCOMMAND = &H112& Const SC_MONITORPOWER = &HF170&
Private Sub Command1_Click() SendMessage Me.hWnd, WM_SYSCOMMAND, SC_MONITORPOWER, 2 End Sub
