Win32Exception: 參數錯誤。
--NativeErrorCode: 87
StackTrace:
   於 MS.Win32.UnsafeNativeMethods.GetWindowTextLength(HandleRef hWnd)
   於 MS.Win32.UnsafeNativeMethods.GetWindowTextNoThrow(HandleRef hWnd, StringBuilder lpString, Int32 nMaxCount)
   於 System.Windows.Automation.Peers.WindowAutomationPeer.GetNameCore()
   於 System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()
   於 System.Windows.Automation.Peers.AutomationPeer.UpdatePeer(Object arg)
   於 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   於 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)