// WPF
            var view = new MainView();

            // Get the handle to the non-WPF owner window
            var ownerWindowHandle = Mastercam.Support.UI.MastercamWindow.GetHandle().Handle;

            // Set the owned WPF window’s Owner property with the non-WPF owner window

            var helper = new System.Windows.Interop.WindowInteropHelper(view) { Owner = ownerWindowHandle };
            view.Show();


            // WinForms
            var winView = new TestView() { TopLevel = true} ;
            winView.Show(Mastercam.Support.UI.MastercamWindow.GetHandle());