AdvancedLauncher.Tools.Extensions.PresentationSourceExtensions.TransformClientToDescendant C# (CSharp) Метод

        public static Point TransformClientToDescendant(this PresentationSource presentationSource, Point point, Visual descendant)
        {
            Point pt = TransformClientToRoot(presentationSource, point);
            return presentationSource.RootVisual.TransformToDescendant(descendant).Transform(pt);
        }