长时间（一到两周）运行我的应用程序（.Net 4.5、64位，WPF）后，我遇到以下应用崩溃：
Faulting application name: XY.exe, Version: 2.12.2.2, Time: 0x5bade142
Faulting module name: KERNELBASE.dll, Version: 6.1.7601.24150, Time: 0x5b0cbc65
Exception code: 0xe0434352
Fault offset: 0x000000000001a06d
Faulting process id: 0x8694
Faulting application start time: 0x01d457228a130410
Faulting application path: C:\Testsysteme\YY.exe
Faulting module path: C:\Windows\system32\KERNELBASE.dll
Report Id: dbfc630b-c61f-11e8-bc27-1866da0d15ef
Application: XY.exe
Frameworkversion: v4.0.30319
Description: The process was terminated due to an unhandled exception
Exception information: System.ComponentModel.Win32Exception
at MS.Win32.UnsafeNativeMethods.RegisterClassEx(WNDCLASSEX_D)
at MS.Win32.HwndWrapper..ctor(Int32, Int32, Int32, Int32, Int32, Int32, Int32, System.String, IntPtr, MS.Win32.HwndWrapperHook[])
at System.Windows.Interop.HwndSource.Initialize(System.Windows.Interop.HwndSourceParameters)
at System.Windows.Interop.HwndSource..ctor(System.Windows.Interop.HwndSourceParameters)
at System.Windows.Controls.Primitives.Popup+PopupSecurityHelper.BuildWindow(Int32, Int32, System.Windows.Media.Visual, Boolean, System.Windows.Interop.HwndSourceHook, System.Windows.AutoResizedEventHandler)
at System.Windows.Controls.Primitives.Popup.BuildWindow(System.Windows.Media.Visual)
at System.Windows.Controls.Primitives.Popup.CreateWindow(Boolean)
at System.Windows.Controls.Primitives.Popup.OnIsOpenChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.SetValueCommon(System.Windows.DependencyProperty, System.Object, System.Windows.PropertyMetadata, Boolean, Boolean, System.Windows.OperationType, Boolean)
at System.Windows.Data.BindingOperations.SetBinding(System.Windows.DependencyObject, System.Windows.DependencyProperty, System.Windows.Data.BindingBase)
at System.Windows.Controls.Primitives.Popup.CreateRootPopup(System.Windows.Controls.Primitives.Popup, System.Windows.UIElement)
at System.Windows.Controls.ToolTip.OnIsOpenChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.SetValueCommon(System.Windows.DependencyProperty, System.Object, System.Windows.PropertyMetadata, Boolean, Boolean, System.Windows.OperationType, Boolean)
at System.Windows.DependencyObject.SetValue(System.Windows.DependencyProperty, System.Object)
at System.Windows.Controls.PopupControlService.RaiseToolTipOpeningEvent()
at System.Windows.Threading.DispatcherTimer.FireTick(System.Object)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
at MS.Internal.CulturePreservingExecutionContext.Run(MS.Internal.CulturePreservingExecutionContext, System.Threading.ContextCallback, System.Object)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
at System.Windows.Application.RunDispatcher(System.Object)
at System.Windows.Application.RunInternal(System.Windows.Window)
at XY.App.Main()
未处理的异常的记录另外显示：
System.ComponentModel.Win32Exception (0x80004005): Not enough storage is available to process this command
我已经找到了一个有关问题connect.microsoft.com on web.archive.org的基本描述的链接，并从JordiCorbilla/atom-table-monitor (GitHub)下载了一个运行AtomMonitor的文件。实际上，随着时间的推移，我发现我的应用程序创建的RWM Atom数量越来越多（几天后大约4000）。这适合异常消息。所有字符串如下所示：
C1FE = HwndWrapper[XY.exe;;b68ce81a-d29f-414b-b63a-3b6979e33dd3] --RWM
从异常消息中，我看到'Popup'导致RegisterClassEx方法中的OnIsOpenChanged。
但是，在我的应用程序中打开和关闭几个弹出窗口并并行监视RWM原子数时，我看不到任何增加，这就是为什么我找不到问题的确切原因。不久之后，再次查看统计数据时，我发现计数增加了。
所以我的问题是：
Popup是否可以负责增加RWM原子数？如果是，这是一个错误吗？为什么要创建一个新的Window并注册这些原子？
我是否以错误的方式使用Popup？我必须关闭/处置/释放某些东西吗？
Popup根本是问题吗？
应用程序创建或不应该超过的“正常” RWM原子数是多少，因为据我所知，它们不再可以删除。
答案 0 :(得分：0)
经过一些研究，我发现了以下内容：它与弹出窗口或任何“真实”窗口无关。除此之外，关闭弹出窗口将从原子表中释放该条目。
原因是：我们在不同的任务上创建WriteableBitmaps以进行图像处理。总是在使用新线程执行此任务（创建WPF控件）时，会创建Dispatcher，该Dispatcher会依次创建HwndWrapper。
如果未手动关闭调度程序，则不会释放这些资源。现在，我们使用以下链接中的解决方法：
GitHub: Win32Exception is thrown when WPF runs out of internal resources
SO: Why does LongRunning task (TPL) with JpegBitmapDecoder run out of resources?
SO: Resource leak when creating freezable objects in a background thread