1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Runtime.InteropServices; 5 using System.Text; 6 using System.Threading.Tasks; 7 using System.Windows; 8 using System.Windows.Interop; 9 10 namespace AeroWindow 11 { 12 internal static class NativeMethods 13 { 14 [DllImport("user32.dll")] 15 internal static extern int SetWindowCompositionAttribute(IntPtr hwnd, ref WindowCompositionAttribData data); 16 17 [StructLayout(LayoutKind.Sequential)] 18 internal struct WindowCompositionAttribData 19 { 20 public WindowCompositionAttribute Attribute; 21 public IntPtr Data; 22 public int SizeOfData; 23 } 24 25 [StructLayout(LayoutKind.Sequential)] 26 internal struct AccentPolicy 27 { 28 public AccentState AccentState; 29 public AccentFlags AccentFlags; 30 public int GradientColor; 31 public int AnimationId; 32 } 33 34 [Flags] 35 internal enum AccentFlags 36 { 37 // ... 38 DrawLeftBorder = 0x20, 39 DrawTopBorder = 0x40, 40 DrawRightBorder = 0x80, 41 DrawBottomBorder = 0x100, 42 DrawAllBorders = (DrawLeftBorder | DrawTopBorder | DrawRightBorder | DrawBottomBorder) 43 // ... 44 } 45 46 internal enum WindowCompositionAttribute 47 { 48 // ... 49 WCA_ACCENT_POLICY = 19 50 // ... 51 } 52 53 internal enum AccentState 54 { 55 ACCENT_DISABLED = 0, 56 ACCENT_ENABLE_GRADIENT = 1, 57 ACCENT_ENABLE_TRANSPARENTGRADIENT = 2, 58 ACCENT_ENABLE_BLURBEHIND = 3, 59 ACCENT_INVALID_STATE = 4 60 } 61 62 public static void EnableBlur(this Window window) 63 { 64 if (SystemParameters.HighContrast) 65 { 66 return; // Blur is not useful in high contrast mode 67 } 68 SetAccentPolicy(window, NativeMethods.AccentState.ACCENT_ENABLE_BLURBEHIND); 69 } 70 71 72 public static void DisableBlur(this Window window) 73 { 74 SetAccentPolicy(window, NativeMethods.AccentState.ACCENT_DISABLED); 75 } 76 77 private static void SetAccentPolicy(Window window, NativeMethods.AccentState accentState) 78 { 79 var windowHelper = new WindowInteropHelper(window); 80 var accent = new NativeMethods.AccentPolicy 81 { 82 AccentState = accentState, 83 AccentFlags = GetAccentFlagsForTaskbarPosition(), 84 AnimationId = 2 85 }; 86 var accentStructSize = Marshal.SizeOf(accent); 87 var accentPtr = Marshal.AllocHGlobal(accentStructSize); 88 Marshal.StructureToPtr(accent, accentPtr, false); 89 var data = new NativeMethods.WindowCompositionAttribData 90 { 91 Attribute = NativeMethods.WindowCompositionAttribute.WCA_ACCENT_POLICY, 92 SizeOfData = accentStructSize, 93 Data = accentPtr 94 }; 95 NativeMethods.SetWindowCompositionAttribute(windowHelper.Handle, ref data); 96 Marshal.FreeHGlobal(accentPtr); 97 } 98 99 private static NativeMethods.AccentFlags GetAccentFlagsForTaskbarPosition() 100 { 101 return NativeMethods.AccentFlags.DrawAllBorders; 102 } 103 } 104 }
1 public MainWindow() 2 { 3 RoutedEventHandler handler = null; 4 handler = (s, e) => 5 { 6 Loaded -= handler; 7 this.EnableBlur(); 8 }; 9 Loaded += handler; 10 11 InitializeComponent(); 12 }
1 <Window x:Class="AeroWindow.MainWindow" 2 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 3 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 4 xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 5 xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 6 xmlns:shell="http://schemas.microsoft.com/winfx/2006/xaml/presentation/shell" 7 xmlns:local="clr-namespace:AeroWindow" 8 mc:Ignorable="d" 9 Background="#44E6ECF0" 10 Title="MainWindow" Height="600" Width="800" > 11 <shell:WindowChrome.WindowChrome> 12 <shell:WindowChrome GlassFrameThickness="1" UseAeroCaptionButtons="False" NonClientFrameEdges="None" CornerRadius="10" CaptionHeight="600" /> 13 </shell:WindowChrome.WindowChrome> 14 <Grid/> 15 </Window>