添加 自定义菜单图标
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liufei
175
Util/AeroGlassHelper.cs
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175
Util/AeroGlassHelper.cs
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/*
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* Virtual Router v1.0 - http://virtualrouter.codeplex.com
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* Wifi Hot Spot for Windows 8, 7 and 2008 R2
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* Copyright (c) 2013 Chris Pietschmann (http://pietschsoft.com)
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* Licensed under the Microsoft Public License (Ms-PL)
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* http://virtualrouter.codeplex.com/license
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*/
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using System;
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using System.Runtime.InteropServices;
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using System.Windows;
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using System.Windows.Interop;
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using System.Windows.Media;
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namespace GeekDesk.Util
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{
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public static class AeroGlassHelper
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{
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#region "Generic Static Methods"
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public static void ExtendGlass(IntPtr windowHandle)
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{
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ExtendGlass(windowHandle, -1, -1, -1, -1);
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}
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public static void ExtendGlass(IntPtr windowHandle, int left, int right, int top, int bottom)
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{
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internalExtendGlass(windowHandle, left, right, top, bottom);
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}
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private static int internalExtendGlass(IntPtr windowHandle, int left, int right, int top, int bottom)
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{
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var retVal = -1; // Returning less than zero will indicate that Aero Glass could not be extended
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// Calculate the Aero Glass Margins
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Win32.Margins margins = Win32.GetDpiAdjustedMargins(windowHandle, left, right, top, bottom);
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try
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{
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// Actually Enable Aero Glass
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retVal = Win32.DwmExtendFrameIntoClientArea(windowHandle, ref margins);
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}
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catch (Exception)
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{
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retVal = -1;
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}
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return retVal;
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}
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#endregion
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#region "WPF Static Methods"
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public static void ExtendGlass(Window win)
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{
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ExtendGlass(win, -1, -1, -1, -1);
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}
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public static void ExtendGlass(Window win, int left, int right, int top, int bottom)
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{
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Brush originalBackgroundBrush = win.Background;
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try
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{
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int retVal = -1;
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if (Win32.DwmIsCompositionEnabled())
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{
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win.Background = Brushes.Transparent;
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// Obtain the window handle for WPF application
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WindowInteropHelper windowInterop = new WindowInteropHelper(win);
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IntPtr windowHandle = windowInterop.Handle;
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// Set the Window background to be Transparent so the Aero Glass will show through
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HwndSource mainWindowSrc = HwndSource.FromHwnd(windowHandle);
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mainWindowSrc.CompositionTarget.BackgroundColor = Colors.Transparent;
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retVal = internalExtendGlass(windowHandle, left, right, top, bottom);
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}
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if (retVal < 0)
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{
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throw new NotSupportedException("Operation Failed: Aero Glass Not Supported");
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}
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}
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catch
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{
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// If an error occurred then change the Window.Background back to what it was
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win.Background = originalBackgroundBrush;
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}
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}
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#endregion
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//#region "Windows.Forms Static Methods"
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//public static void ExtendGlass(Form form)
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//{
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// ExtendGlass(form, -1, -1, -1, -1);
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//}
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//public static void ExtendGlass(Form form, int left, int right, int top, int bottom)
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//{
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// System.Drawing.Color oldBackColor = form.BackColor;
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// System.Drawing.Color oldTransparencyKey = form.TransparencyKey;
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// int retVal = -1;
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// try
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// {
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// form.TransparencyKey = System.Drawing.Color.Beige;
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// form.BackColor = form.TransparencyKey;
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// retVal = internalExtendGlass(form.Handle, left, right, top, bottom);
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// }
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// catch (Exception)
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// {
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// retVal = -1;
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// }
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// if (retVal < 0)
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// {
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// form.BackColor = oldBackColor;
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// form.TransparencyKey = oldTransparencyKey;
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// }
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//}
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//#endregion
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#region "Win32 / pinvoke"
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private static class Win32
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{
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[DllImport("DwmApi.dll")]
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public static extern int DwmExtendFrameIntoClientArea(IntPtr hwnd, ref Margins margins);
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[DllImport("dwmapi.dll", PreserveSig = false)]
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public static extern bool DwmIsCompositionEnabled();
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[StructLayout(LayoutKind.Sequential)]
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public struct Margins
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{
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public int Left; // width of left border that retains its size
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public int Right; // width of right border that retains its size
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public int Top; // height of top border that retains its size
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public int Bottom; // height of bottom border that retains its size
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}
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public static Win32.Margins GetDpiAdjustedMargins(IntPtr windowHandle, int left, int right, int top, int bottom)
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{
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float DesktopDpiX;
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float DesktopDpiY;
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// Get System Dpi
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using (System.Drawing.Graphics desktop = System.Drawing.Graphics.FromHwnd(windowHandle))
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{
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DesktopDpiX = desktop.DpiX;
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DesktopDpiY = desktop.DpiY;
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}
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// Set Margins
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Win32.Margins margins = new Win32.Margins();
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// Note that the default desktop Dpi is 96dpi. The margins are
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// adjusted for the system Dpi.
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margins.Left = Convert.ToInt32(left * (DesktopDpiX / 96));
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margins.Right = Convert.ToInt32(right * (DesktopDpiX / 96));
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margins.Top = Convert.ToInt32(top * (DesktopDpiX / 96));
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margins.Bottom = Convert.ToInt32(bottom * (DesktopDpiX / 96));
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return margins;
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}
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}
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#endregion
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}
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}
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