CK.WindowManager.TopMostService.UpdateTopMostWindows C# (CSharp) Method

        private void UpdateTopMostWindows()
        {
            List<Window> windows = new List<Window>();

            List<Window> l;
            //create a copy
            foreach( var s in _indexList )
            {
                Debug.Assert( _stringToWindows.ContainsKey( s ) );

                if( _stringToWindows.TryGetValue( s, out l ) ) windows.AddRange( l );
            }

            foreach( var w in windows )
            {
                DispatchWhenRequired( w.Dispatcher, () =>
                {
                    CK.Windows.Interop.Win.Functions.SetWindowPos(
                        new WindowInteropHelper( w ).Handle,
                        new IntPtr( (int)CK.Windows.Interop.Win.SpecialWindowHandles.TOPMOST ), 0, 0, 0, 0,
                        Windows.Interop.Win.SetWindowPosFlags.IgnoreMove
                        | Windows.Interop.Win.SetWindowPosFlags.IgnoreResize
                        | Windows.Interop.Win.SetWindowPosFlags.DoNotActivate );
                } );
            }
        }