5

我正在显示一个带有 WebBrowser 控件的窗口。我希望窗户是无框的,所以我设置了 WindowStyle="None" 这有效但在窗户周围显示彩色边框。Allowstransparency="true" 删除此但 WebBrowser 不再显示(按钮是)

我找到了http://www.neowin.net/forum/topic/646970-c%23-wpf-window-with-transparency-makes-windowsformshost-disappear/但我无法让它工作(SetWindowsLong 参数错误)

Window x:Class="ZoomBrowserWPF.WebWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:UMenu"
        Title="Test" Height="605" Width="700" ResizeMode="CanResizeWithGrip"
        Loaded="Window_Loaded" Unloaded="Window_Unloaded"
        WindowStyle="None"        
        Background="Transparent"              
        Left="1" Top="1"
        UseLayoutRounding="True" SizeChanged="Window_SizeChanged" >
    <Border Name="WindowBorder"  BorderBrush="Black" BorderThickness="1" CornerRadius="10"     Background="Beige">
    <Grid>        
        <Grid.RowDefinitions>
            <RowDefinition Height="25"/>
            <RowDefinition Height="30"/>
            <RowDefinition/>
            <RowDefinition Height="33"/>
            <RowDefinition Height="25.5"/>
        </Grid.RowDefinitions>
        <Grid x:Name="GridWebBrowser" Grid.Row="2" Grid.RowSpan="2">            
            <WebBrowser x:Name="webBrowser"  Grid.ColumnSpan="2" Visibility="Visible"
                         Margin="0,0,-16,0" 
                        ScrollViewer.HorizontalScrollBarVisibility="Disabled" 
                        ScrollViewer.VerticalScrollBarVisibility="Auto" 
                        ScrollViewer.IsDeferredScrollingEnabled="False"
                        ScrollViewer.CanContentScroll="False"
                        />
        </Grid>
        <Button x:Name="btnZoomIn" Content="Zoom in" Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="12,0,0,0"  VerticalAlignment="Top" Width="75" Click="btnZoomIn_Click" />
        <Button x:Name="btnZoomOut" Content="Zoom out" Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="168,0,0,0"  VerticalAlignment="Top" Width="75" Click="btnZoomOut_Click" />
        <TextBlock Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="102,0,0,0" Name="txtZoom" Text="100" VerticalAlignment="Top" Width="60" />
    </Grid>
    </Border>
</Window>
4

6 回答 6

10

我知道这是一个老问题,但我今天遇到了完全相同的问题,我用它解决了

ResizeMode="NoResize"

代替

Allowstransparency="true"

ResizeMode 也确实删除了令人讨厌的边框,并且不会影响 WebBrowser 控件。在这种情况下,似乎是解决您的问题的最简单方法:)

于 2014-10-15T11:07:44.270 回答
5

它不能通过 WPF 诡计起作用,因为 WebBrowser 控件实际上不是 WPF 控件。它是一个封装的 ActiveX IE Web 浏览器控件,不是由 WPF 呈现的。

也许您的问题与这篇文章Removing border from WebBrowser control相关。

老实说,如果可能的话,试着放弃这个糟糕的 WebControl 并使用其他东西。有适当的 WPF 支持的免费替代品,例如 Awesomium.NET、CefSharp 或 CefGlue.NET(均基于 Chromium)。

于 2013-10-18T08:15:15.163 回答
3

这是一个老问题,但我想发布我为使其正常工作所做的工作。

当您想创建一个没有边框且可调整大小并且能够承载 WebBrowser 控件或指向您根本无法访问的 URL 的 Frame 控件的窗口时,所述控件的内容将显示为空,如 OP 所述。

不过,我找到了解决方法;在窗口中,如果您将 WindowStyle 设置为 None,将 ResizeMode 设置为 NoResize(请耐心等待,完成后您仍然可以调整大小)然后确保您有 UNCHECKED AllowsTransparency 您将有一个没有边框的静态大小的窗口并显示浏览器控件。

现在,您可能仍然希望能够调整大小,对吧?好吧,我们可以通过互操作调用来做到这一点:

    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    private static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);

    [DllImportAttribute("user32.dll")]
    public static extern bool ReleaseCapture();

    //Attach this to the MouseDown event of your drag control to move the window in place of the title bar
    private void WindowDrag(object sender, MouseButtonEventArgs e) // MouseDown
    {
        ReleaseCapture();
        SendMessage(new WindowInteropHelper(this).Handle,
            0xA1, (IntPtr)0x2, (IntPtr)0);
    }

    //Attach this to the PreviewMousLeftButtonDown event of the grip control in the lower right corner of the form to resize the window
    private void WindowResize(object sender, MouseButtonEventArgs e) //PreviewMousLeftButtonDown
    {
        HwndSource hwndSource = PresentationSource.FromVisual((Visual)sender) as HwndSource;
        SendMessage(hwndSource.Handle, 0x112, (IntPtr)61448, IntPtr.Zero);
    }

瞧,一个没有边框的 WPF 窗口,仍然可以移动和调整大小,而不会失去与 WebBrowser 等控件的兼容性

于 2014-08-01T20:30:27.813 回答
0

我查看了您发布的来源,它对我有用。继承人的代码:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Interop;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace PAUL.Allgemein.Seiten
{
/// <summary>
/// Interaktionslogik für Robbe.xaml
/// </summary>
public partial class Robbe : Window
{
    #region The Classic Window API
    //The SendMessage function sends a message to a window or windows.
    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = false)]
    static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, int wParam, int lParam);

    //ReleaseCapture releases a mouse capture
    [DllImportAttribute("user32.dll", CharSet = CharSet.Auto, SetLastError = false)]
    public static extern bool ReleaseCapture();

    //SetWindowLong lets you set a window style
    [System.Runtime.InteropServices.DllImport("user32.dll")]
    static extern int SetWindowLong(IntPtr hWnd, int nIndex, long dwNewLong);
    #endregion

    const int GWL_STYLE = -16;
    const long WS_POPUP = 2147483648;

    //private const int GWL_STYLE = -16;
    //private const int WS_SYSMENU = 0x80000;
    //[DllImport("user32.dll", SetLastError = true)]
    //private static extern int GetWindowLong(IntPtr hWnd, int nIndex);
    //[DllImport("user32.dll")]
    //private static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
    public Robbe()
    {

        InitializeComponent();
    }

    private void Window_Loaded(object sender, RoutedEventArgs e)
    {
        IntPtr hWnd = new System.Windows.Interop.WindowInteropHelper(this).Handle;
        SetWindowLong(hWnd, GWL_STYLE, WS_POPUP);
    }
}
}

和 Xaml 代码:

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Robbe" Height="300" Width="300"
    Loaded="Window_Loaded">
<Grid>
    <!-- Creates the shadow on the right and bottom -->
    <Border Focusable="False" BorderBrush="Gray"           
        BorderThickness="0,0,2,2"
        CornerRadius="10"
        Background="Beige" >
        <WebBrowser Source="C:\Users\nicholas\Desktop\puale\PAUL\bin\Debug\robbe.swf" Margin="62,71,69,56"></WebBrowser>
    </Border>
</Grid>

于 2013-11-20T11:41:49.800 回答
0

当我遇到与 SystemWebBrowser 控件类似的问题时,我遇到了这个问题,我需要删除顶部空白并将 ResizeMode 保持为 CanResize。所以,我不得不多搜索一点来找到解决方案。解决方案是使用 WindowChrome 并将 CaptionHeight 设置为 0,如下所示,

<WindowChrome.WindowChrome>
<WindowChrome 
    CaptionHeight="0"
    ResizeBorderThickness="5" />
</WindowChrome.WindowChrome>

有了这个,您可以保留其他属性,例如,

    ResizeMode="CanResize"
    WindowStyle="None"

并保留 AllowsTransparency 的默认值

于 2021-09-24T04:30:50.560 回答
-1

您可以做的是将 webbrowser 控件包装到一个弹出控件,该控件具有可以设置为 false 的 AllowTransparency 属性,当然它浮动的缺点是使 webbrowser 控件适合您的 targetplacement

 <Grid Grid.Row="1"
       Grid.Column="2">
       <Grid Name="grdBrowser" 
             Background="White"></Grid>
                <Popup AllowsTransparency="False" 
                       Height="{Binding Path=Height,ElementName=grdBrowser}"
                       Width="{Binding Path=Width,ElementName=grdBrowser}"
                       IsOpen="True"
                       Placement="Mouse" 
                       PlacementTarget="{Binding ElementName=grdBrowser}">
                            <WebBrowser/>
                </Popup>

 </Grid>
于 2021-04-08T03:22:12.670 回答