A WPF App fails when coming out of hibernate mode

Question

I have a WPF application that fails to come out of the timed sleep, followed by hibernate. The render thread seems to be failing during initialization. I tried removing hardware acceleration to check that it's not graphics card related, but that did not help.

Here is an exception along with the stacktrace:

ERROR An unspecified error occurred on the render thread. Stack trace: at System.Windows.Media.MediaContext.NotifyPartitionIsZombie(Int32 failureCode) at System.Windows.Media.MediaContext.NotifyChannelMessage() at System.Windows.Interop.HwndTarget.HandleMessage(Int32 msg, IntPtr wparam, IntPtr lparam) at System.Windows.Interop.HwndSource.HwndTargetFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) at System.Windows.Threading.Dispatcher.WrappedInvoke(Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter) at System.Windows.Threading.Dispatcher.Invoke(DispatcherPriority priority, Delegate method, Object arg) at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam) at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg) at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame) at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame) at System.Windows.Threading.Dispatcher.Run() at System.Windows.Application.RunDispatcher(Object ignore) at System.Windows.Application.RunInternal(Window window) at System.Windows.Application.Run(Window window) at System.Windows.Application.Run()

I googled around, and people suggest that it might have something to do with AllowsTransparency property being set to true; however, i did not see this issue when running a simple test app.

Any ideas about the exception and possible causes/solutions are highly appreciated.

Answer 1

Try this:

967634 FIX: You may experience several issues when you render graphics by using Windows Presentation Foundation (WPF) in an application 967634

Note: Unfortunately, you'll probably have to call. However, it's free even if they charge you at first, they will refund your money if all you do is ask them for the fix.