WPF实现Aero毛玻璃效果

源码摘自 http://virtualrouter.codeplex.com

这是一个 .net的wifi工具创建笔记本共享wifi

/*
* Virtual Router v1.0 - http://virtualrouter.codeplex.com
* Wifi Hot Spot for Windows 8, 7 and 2008 R2
* Copyright (c) 2013 Chris Pietschmann (http://pietschsoft.com)
* Licensed under the Microsoft Public License (Ms-PL)
* http://virtualrouter.codeplex.com/license
*/
using System;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Interop;
using System.Windows.Media;namespace VirtualRouterClient.AeroGlass
{public static class AeroGlassHelper{#region "Generic Static Methods"public static void ExtendGlass(IntPtr windowHandle){ExtendGlass(windowHandle, -1, -1, -1, -1);}public static void ExtendGlass(IntPtr windowHandle, int left, int right, int top, int bottom){internalExtendGlass(windowHandle, left, right, top, bottom);}private static int internalExtendGlass(IntPtr windowHandle, int left, int right, int top, int bottom){var retVal = -1; // Returning less than zero will indicate that Aero Glass could not be extended// Calculate the Aero Glass MarginsWin32.Margins margins = Win32.GetDpiAdjustedMargins(windowHandle, left, right, top, bottom);try{// Actually Enable Aero GlassretVal = Win32.DwmExtendFrameIntoClientArea(windowHandle, ref margins);}catch (Exception){retVal = -1;}return retVal;}#endregion#region "WPF Static Methods"public static void ExtendGlass(Window win){ExtendGlass(win, -1, -1, -1, -1);}public static void ExtendGlass(Window win, int left, int right, int top, int bottom){Brush originalBackgroundBrush = win.Background;try{int retVal = -1;if (Win32.DwmIsCompositionEnabled()){win.Background = Brushes.Transparent;// Obtain the window handle for WPF applicationWindowInteropHelper windowInterop = new WindowInteropHelper(win);IntPtr windowHandle = windowInterop.Handle;// Set the Window background to be Transparent so the Aero Glass will show throughHwndSource mainWindowSrc = HwndSource.FromHwnd(windowHandle);mainWindowSrc.CompositionTarget.BackgroundColor = Colors.Transparent;retVal = internalExtendGlass(windowHandle, left, right, top, bottom);}if (retVal < 0){throw new NotSupportedException("Operation Failed: Aero Glass Not Supported");}}catch{// If an error occurred then change the Window.Background back to what it waswin.Background = originalBackgroundBrush;}}#endregion//#region "Windows.Forms Static Methods"//public static void ExtendGlass(Form form)//{//    ExtendGlass(form, -1, -1, -1, -1);//}//public static void ExtendGlass(Form form, int left, int right, int top, int bottom)//{//    System.Drawing.Color oldBackColor = form.BackColor;//    System.Drawing.Color oldTransparencyKey = form.TransparencyKey;//    int retVal = -1;//    try//    {//        form.TransparencyKey = System.Drawing.Color.Beige;//        form.BackColor = form.TransparencyKey;//        retVal = internalExtendGlass(form.Handle, left, right, top, bottom);//    }//    catch (Exception)//    {//        retVal = -1;//    }//    if (retVal < 0)//    {//        form.BackColor = oldBackColor;//        form.TransparencyKey = oldTransparencyKey;//    }//}//#endregion#region "Win32 / pinvoke"private static class Win32{[DllImport("DwmApi.dll")]public static extern int DwmExtendFrameIntoClientArea(IntPtr hwnd, ref Margins margins);[DllImport("dwmapi.dll", PreserveSig = false)]public static extern bool DwmIsCompositionEnabled();[StructLayout(LayoutKind.Sequential)]public struct Margins{public int Left;    // width of left border that retains its sizepublic int Right;   // width of right border that retains its sizepublic int Top;     // height of top border that retains its sizepublic int Bottom;  // height of bottom border that retains its size}public static Win32.Margins GetDpiAdjustedMargins(IntPtr windowHandle, int left, int right, int top, int bottom){float DesktopDpiX;float DesktopDpiY;// Get System Dpiusing (System.Drawing.Graphics desktop = System.Drawing.Graphics.FromHwnd(windowHandle)){DesktopDpiX = desktop.DpiX;DesktopDpiY = desktop.DpiY;}// Set MarginsWin32.Margins margins = new Win32.Margins();// Note that the default desktop Dpi is 96dpi. The  margins are// adjusted for the system Dpi.margins.Left = Convert.ToInt32(left * (DesktopDpiX / 96));margins.Right = Convert.ToInt32(right * (DesktopDpiX / 96));margins.Top = Convert.ToInt32(top * (DesktopDpiX / 96));margins.Bottom = Convert.ToInt32(bottom * (DesktopDpiX / 96));return margins;}}#endregion}
}

使用方法

在 window_Loaded 里

AeroGlassHelper.ExtendGlass(this);
//或
AeroGlassHelper.ExtendGlass(this, (int)windowContent.Margin.Left, (int)windowContent.Margin.Right, (int)windowContent.Margin.Top, (int)windowContent.Margin.Bottom);

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