Musings of a Software Engineer v2.0

   1: public class GlassWindow : Window

   2:    {

   3:        protected override void OnSourceInitialized(EventArgs e)

   4:        {

   5:            base.OnSourceInitialized(e);

   6:            GlassHelper.ExtendGlassFrame(this, new Thickness(-1));

   7:        }

   8:    }

   9:    public class GlassHelper

  10:    {

  11:        public static bool ExtendGlassFrame(Window window, Thickness margin)

  12:        {

  13:            if (!DwmIsCompositionEnabled())

  14:                return false;

  15:  

  16:            IntPtr hwnd = new WindowInteropHelper(window).Handle;

  17:            if (hwnd == IntPtr.Zero)

  18:                throw new InvalidOperationException("The Window must be shown before extending glass.");

  19:  

  20:            //Set the background to transparent from both the WPF and Win32 perspectives

  21:            //window.Background = Brushes.Transparent;

  22:            HwndSource.FromHwnd(hwnd).CompositionTarget.BackgroundColor = Colors.Transparent;

  23:  

  24:            MARGINS margins = new MARGINS(margin);

  25:            DwmExtendFrameIntoClientArea(hwnd, ref margins);

  26:            return true;

  27:        }

  28:  

  29:        [DllImport("dwmapi.dll", PreserveSig = false)]

  30:        static extern void DwmExtendFrameIntoClientArea(IntPtr hwnd, ref MARGINS margins);

  31:  

  32:        [DllImport("dwmapi.dll", PreserveSig = false)]

  33:        static extern bool DwmIsCompositionEnabled();

  34:    }

  35:    struct MARGINS

  36:    {

  37:        public MARGINS(Thickness t)

  38:        {

  39:            Left = (int)t.Left;

  40:            Right = (int)t.Right;

  41:            Top = (int)t.Top;

  42:            Bottom = (int)t.Bottom;

  43:        }

  44:        public int Left;

  45:        public int Right;

  46:        public int Top;

  47:        public int Bottom;

  48:    }

   1: /// <summary>

   2:    /// Interaction logic for Window1.xaml

   3:    /// </summary>

   4:    public partial class Window1 : GlassWindow

   5:    {

   6:        public Window1()

   7:        {

   8:            InitializeComponent();

   9:        }

  10:    }

   1: <local:GlassWindow x:Class="TryUserapp.Window1"

   2:     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

   3:     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

   4:     Title="Window1" Height="600" Width="600"

   5:     xmlns:local="clr-namespace:TryUserapp" WindowStyle="None"

   6:     >

   7:     <local:GlassWindow.Background>

   8:         <LinearGradientBrush EndPoint="1,0.5" StartPoint="0,0.5">            

   9:             <GradientStop Color="#CC101010" Offset="1"/>            

  10:             <GradientStop Color="#AA101010" Offset="0.01"/>            

  11:         </LinearGradientBrush>

  12:     </local:GlassWindow.Background>

  13:     <!-- -->

  14: </local:GlassWindow>