Win32Exception: 无效的窗口句柄。
--NativeErrorCode: 1400
StackTrace:
   在 MS.Internal.PointUtil.ScreenToClient(Point pointScreen, PresentationSource presentationSource)
   在 System.Windows.Controls.PopupControlService.ConvexHull.ContainsMousePoint()
   在 System.Windows.Controls.PopupControlService.MouseHasLeftSafeArea()
   在 System.Windows.Controls.PopupControlService.OnMouseMove(IInputElement directlyOver)
   在 System.Windows.Controls.PopupControlService.OnPostProcessInput(Object sender, ProcessInputEventArgs e)
   在 System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs)
   在 System.Windows.Input.InputManager.ProcessStagingArea()
   在 System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   在 System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   在 System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   在 System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Win32Exception: 无效的窗口句柄。
--NativeErrorCode: 1400
StackTrace:
   在 MS.Win32.UnsafeNativeMethods.GetWindowTextLength(HandleRef hWnd)
   在 MS.Win32.UnsafeNativeMethods.GetWindowTextNoThrow(HandleRef hWnd, StringBuilder lpString, Int32 nMaxCount)
   在 System.Windows.Automation.Peers.WindowAutomationPeer.GetNameCore()
   在 System.Windows.Automation.Peers.AutomationPeer.UpdateSubtree()
   在 System.Windows.ContextLayoutManager.fireAutomationEvents()
   在 System.Windows.ContextLayoutManager.UpdateLayout()
   在 System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
   在 System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   在 System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
   在 System.Windows.Media.MediaContext.AnimatedRenderMessageHandler(Object resizedCompositionTarget)
   在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Win32Exception: 无效的窗口句柄。
--NativeErrorCode: 1400
StackTrace:
   在 Standard.NativeMethods.GetWindowPlacement(IntPtr hwnd)
   在 System.Windows.Shell.WindowChromeWorker._GetHwndState()
   在 System.Windows.Shell.WindowChromeWorker._UpdateSystemMenu(Nullable`1 assumeState)
   在 System.Windows.Shell.WindowChromeWorker._HandleWindowPosChanged(WM uMsg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 System.Windows.Shell.WindowChromeWorker._WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 System.Windows.Interop.HwndSource.PublicHooksFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   在 MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Win32Exception: 无效的窗口句柄。
--NativeErrorCode: 1400
StackTrace:
   在 MS.Internal.PointUtil.ScreenToClient(Point pointScreen, PresentationSource presentationSource)
   在 System.Windows.Controls.PopupControlService.ConvexHull.ContainsMousePoint()
   在 System.Windows.Controls.PopupControlService.MouseHasLeftSafeArea()
   在 System.Windows.Controls.PopupControlService.OnMouseMove(IInputElement directlyOver)
   在 System.Windows.Controls.PopupControlService.OnPostProcessInput(Object sender, ProcessInputEventArgs e)
   在 System.Windows.Input.InputManager.RaiseProcessInputEventHandlers(ProcessInputEventHandler postProcessInput, ProcessInputEventArgs processInputEventArgs)
   在 System.Windows.Input.InputManager.ProcessStagingArea()
   在 System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   在 System.Windows.Input.MouseDevice.Synchronize()
   在 System.Windows.Input.InputManager.HitTestInvalidatedAsyncCallback(Object arg)
   在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Win32Exception: 无效的窗口句柄。
--NativeErrorCode: 1400
StackTrace:
   在 MS.Internal.PointUtil.ClientToScreen(Point pointClient, PresentationSource presentationSource)
   在 System.Windows.Input.MouseDevice.GlobalHitTest(Boolean clientUnits, Point pt, PresentationSource inputSource, IInputElement& enabledHit, IInputElement& originalHit)
   在 System.Windows.Input.MouseDevice.PreNotifyInput(Object sender, NotifyInputEventArgs e)
   在 System.Windows.Input.InputManager.ProcessStagingArea()
   在 System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   在 System.Windows.Input.MouseDevice.Synchronize()
   在 System.Windows.Input.InputManager.HitTestInvalidatedAsyncCallback(Object arg)
   在 System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   在 System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)