Exception on XP

[Doug Miller]

I am seeing the following exception occur when opening a cefsharp WPF webview on some  (2 out of 3 so far)  XP machines.  Anyone know cause, fix or work around?    I have never seen this on Windows 7.   

2014-04-22 13:40:16,921 3856 [3820] FATAL Icc.App - FATAL UNHANDLED EXCEPTION - terminating

System.ArgumentException: '3' is not a valid value for property 'BitmapScalingMode'.

   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, OperationType operationType, Boolean isInternal)

   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)

   at System.Windows.Media.RenderOptions.SetBitmapScalingMode(DependencyObject target, BitmapScalingMode bitmapScalingMode)

   at CefSharp.Wpf.WebView.OnApplyTemplate()

   at System.Windows.FrameworkElement.ApplyTemplate()

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.DockPanel.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)

   at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Decorator.MeasureOverride(Size constraint)

   at System.Windows.Documents.AdornerDecorator.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Controls.Border.MeasureOverride(Size constraint)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Window.MeasureOverrideHelper(Size constraint)

   at System.Windows.Window.MeasureOverride(Size availableSize)

   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)

   at System.Windows.UIElement.Measure(Size availableSize)

   at System.Windows.Interop.HwndSource.SetLayoutSize()

   at System.Windows.Interop.HwndSource.set_RootVisualInternal(Visual value)

   at System.Windows.Interop.HwndSource.set_RootVisual(Visual value)

   at System.Windows.Window.SetupInitialState(Double requestedTop, Double requestedLeft, Double requestedWidth, Double requestedHeight)

   at System.Windows.Window.CreateSourceWindowImpl()

   at System.Windows.Window.SafeCreateWindow()

   at System.Windows.Window.ShowHelper(Object booleanBox)

   at System.Windows.Window.Show()

   at System.Windows.Window.ShowDialog()

   at Icc.App.Start(IDictionary`2 commandLineArgs)

   at Icc.App.OnStartup(StartupEventArgs e)

   at System.Windows.Application.<.ctor>b__0(Object unused)

   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.DispatcherOperation.InvokeImpl()

   at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)

   at System.Threading.ExecutionContext.runTryCode(Object userData)

   at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)

   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)

   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

   at System.Windows.Threading.DispatcherOperation.Invoke()

   at System.Windows.Threading.Dispatcher.ProcessQueue()

   at System.Windows.Threading.Dispatcher.WndProcHook(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.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.RunInternal(Window window)

   at System.Windows.Application.Run(Window window)

   at System.Windows.Application.Run()

   at Icc.App.Main()

[Kyle McFarland]

Do you know what version of .NET is installed on these Windows XP machines?

[Doug Miller]

This is w/ .Net 3.5 installed on XP w/ sp2 and sp3.

[Jørn Hansen]

See change history of http://msdn.microsoft.com/en-us/library/system.windows.media.bitmapscalingmode(v=vs.90).aspx and compare the available values with the 3.0 page. It looks like 3 = Linear need .NET 3.5 SP1

If that's the right workaround there is probably room for more info in the FAQ :-)

--
Best regards,
JornH

[Doug Miller]

That service pack fixed it, thanks!