Process completed with exit code 1.

Obsolete member 'OutlinedTextBlock.OnRender(DrawingContext)' overrides non-obsolete member 'UIElement.OnRender(DrawingContext)'

Obsolete member 'OutlinedTextBlock.MeasureOverride(Size)' overrides non-obsolete member 'FrameworkElement.MeasureOverride(Size)'

Obsolete member 'OutlinedTextBlock.ArrangeOverride(Size)' overrides non-obsolete member 'FrameworkElement.ArrangeOverride(Size)'

Possible null reference assignment.

Non-nullable property 'Model' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'GlobalHook' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable event 'KeyPressed' must contain a non-null value when exiting constructor. Consider declaring the event as nullable.

Unboxing a possibly null value.

Nullability of reference types in type of parameter 'sender' of 'void MainWindow.GlobalHookMouseDownExt(object sender, MouseEventExtArgs e)' doesn't match the target delegate 'EventHandler<MouseEventExtArgs>' (possibly because of nullability attributes).