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AllowsTransparency和WebBrowser兼容性问题解决方案
AllowsTransparency和System.Windows.Controls.WebBrowser兼容性问题，能看这篇文章，所以原因也不用多说；最根本的就是因为MS对win32底层的WebBrowser简易封装成System.Windows.Controls.WebBrowser
解决方案也很简单，但是网上的文章大部分都代码缺少和代码陈旧（各种转；各种代码错误，这种错误不是指版本等原因，而是一些简单标点符号；我不相信他是手扣代码，而不是把vs写好的代码复制到文章里，这种不负责任的人的文章还需要看么？），于是我就整理成了一个类方便调用
现在都讲究的快速开发，如果你的文章不能对别人起到实质性的帮助 就算不上一篇好文章，如果你的文章不但没起到帮助反而是浪费别人的开发时间 那么就没必要把垃圾发出来；
因本文章较为简单，故加入了微量吐槽，为防止身体不适者恶心干呕，忽视以上内容，下来文归正转
1、xaml：
<Window x:Class="AllowsTransparency和webbrowser兼容问题.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:AllowsTransparency和webbrowser兼容问题" Title="MainWindow" Height="350" Width="525" AllowsTransparency="True" WindowStyle="None"> <Grid x:Name="grid"></Grid></Window>
2、cs：
public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); FormsWebBrowser web = new FormsWebBrowser(this.grid); //或者直接this web.WebBrowser.Navigate(new Uri("http://www.baidu.com")); } }3、FormWebBrowser类调用：
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Windows;using System.Windows.Forms;using System.Diagnostics;using System.ComponentModel;using System.Windows.Interop;using System.Windows.Threading;using System.Windows.Media;using System.Runtime.InteropServices;namespace Tools{ public class FormsWebBrowser { Window _owner; FrameworkElement _placementTarget; Form _form; WebBrowser _wb = new WebBrowser(); public WebBrowser WebBrowser { get { return _wb; } } public FormsWebBrowser(FrameworkElement placementTarget) //, Window mainWindow) { _placementTarget = placementTarget; Window owner = Window.GetWindow(placementTarget); //Window owner = mainWindow; //page中传入window Debug.Assert(owner != null); _owner = owner; _form = new Form(); _form.Opacity = owner.Opacity; _form.ShowInTaskbar = false; _form.FormBorderStyle = FormBorderStyle.None; _wb.Dock = DockStyle.Fill; _form.Controls.Add(_wb); owner.LocationChanged += delegate { OnSizeLocationChanged(); }; _placementTarget.SizeChanged += delegate { OnSizeLocationChanged(); }; if (owner.IsVisible) InitialShow(); else owner.SourceInitialized += delegate { InitialShow(); }; DependencyPropertyDescriptor dpd = DependencyPropertyDescriptor.FromProperty(UIElement.OpacityProperty, typeof(Window)); dpd.AddValueChanged(owner, delegate { _form.Opacity = _owner.Opacity; }); _form.FormClosing += delegate { _owner.Close(); }; } void InitialShow() { NativeWindow owner = new NativeWindow(); owner.AssignHandle(((HwndSource)HwndSource.FromVisual(_owner)).Handle); _form.Show(owner); owner.ReleaseHandle(); } DispatcherOperation _repositionCallback; void OnSizeLocationChanged() { if (_repositionCallback == null) _repositionCallback = _owner.Dispatcher.BeginInvoke(new Action(Reposition), DispatcherPriority.Input); } void Reposition() { _repositionCallback = null; Point offset = _placementTarget.TranslatePoint(new Point(), _owner); Point size = new Point(_placementTarget.ActualWidth, _placementTarget.ActualHeight); HwndSource hwndSource = (HwndSource)HwndSource.FromVisual(_owner); CompositionTarget ct = hwndSource.CompositionTarget; offset = ct.TransformToDevice.Transform(offset); size = ct.TransformToDevice.Transform(size); Win32.POINT screenLocation = new Win32.POINT(offset); Win32.ClientToScreen(hwndSource.Handle, ref screenLocation); Win32.POINT screenSize = new Win32.POINT(size); Win32.MoveWindow(_form.Handle, screenLocation.X, screenLocation.Y, screenSize.X, screenSize.Y, true); } } static class Win32 { [StructLayout(LayoutKind.Sequential)] public struct POINT { public int X; public int Y; public POINT(int x, int y) { this.X = x; this.Y = y; } public POINT(Point pt) { X = Convert.ToInt32(pt.X); Y = Convert.ToInt32(pt.Y); } }; [DllImport("user32.dll")] internal static extern bool ClientToScreen(IntPtr hWnd, ref POINT lpPoint); [DllImport("user32.dll")] internal static extern bool MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint); }}
AllowsTransparency和WebBrowser兼容性问题解决方案
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