Additional Null-Check in TransformToDeviceDPI #462
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Avoid the following NullException:
TransformExtensions TransformToDeviceDPI: First Chance Exception: System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.
bei AvalonDock.Controls.TransformExtensions.TransformToDeviceDPI(Visual visual, Point pt)
bei AvalonDock.DockingManager.AvalonDock.Controls.IOverlayWindowHost.HitTestScreen(Point dragPoint)
bei AvalonDock.Controls.DragService.<>c__DisplayClass9_0.b__0(IOverlayWindowHost oh)
bei System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable
1 source, Func
2 predicate)bei AvalonDock.Controls.DragService.UpdateMouseLocation(Point dragPosition)
bei AvalonDock.Controls.LayoutFloatingWindowControl.UpdateDragPosition()
bei AvalonDock.Controls.LayoutFloatingWindowControl.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
bei AvalonDock.Controls.LayoutAnchorableFloatingWindowControl.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
bei System.Windows.Interop.HwndSource.PublicHooksFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
bei MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
bei MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
bei System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
bei System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)