public static void CommandWithClick(string wndClass, int width, int height, double xFactor, double yFactor)
 {
     WndFinder wf = new WndFinder();
     IntPtr hWnd = wf.GetWindow(wndClass);
     if (hWnd != IntPtr.Zero)
     {
         SetWindowPos(hWnd, /*HWND_TOPMOST*/(IntPtr)(-1), 0, 0, width, height, SetWindowPosFlags.ShowWindow);
         int x = (int)(width * xFactor);
         int y = (int)(height * yFactor);
         MouseLeftClick(x, y);
     }
 }
        public static void ActivateMenuItem(string mainWndClass, int menuItemNum, int menuSubItemNum)
        {
            IntPtr hWnd = new WndFinder().GetWindow(mainWndClass);
            IntPtr hMenu = GetSubMenu(GetMenu(hWnd), menuItemNum);

            SendMessage(hWnd, WM_INITMENU, (int)hMenu, 0);
            SendMessage(hWnd, WM_INITMENUPOPUP, (int)hMenu, 0);

            SendMessage(hWnd, WM_COMMAND, GetMenuItemID(hMenu, menuSubItemNum), 0);
        }