c# - 使用 WebBrowser 获取弹出信息

Question

我正在使用 System.Windows.Forms.WebBrowser 控件来访问 URL。某些 URL 会触发在 IE 中而不是在 WebBrowser 中打开的弹出窗口。我不太在乎他们在哪里开门。但以某种方式找出弹出窗口的 URL 是最重要的目标。我一直在网络上看到对“NewWindow2”事件的引用。我不确定它有多相关，但我不知道如何使用它/在哪里可以找到它，因为 WebBrowser 没有 NewWindow2 事件，只有 NewWindow 事件。

有什么想法吗？

谢谢!

编辑

Web_V1.NewWindow 事件仅在一定程度上起作用。并非所有弹出窗口都被检测到。有些 URL 只显示为“about:blank”。前任。在 http://www.thedailybeast.com/ 上使用它. (有人知道任何其他网站的弹出窗口数量臭名昭著吗？)

有人知道检测 WebBrowser 弹出窗口结果页面的万能方法吗？

Answer 1

一个好的弹出测试器是 http://www.popuptest.com .

WebBrowser NewWindow 事件实际上 Hook 在基础 NewWindow2 事件上。 NewWindow 工作正常，但它不会为您提供新窗口所在的 url。

从 IE6 开始，有一个 NewWindow3可用，但是 WebBrowser 不公开这个。但是，这里有一个示例代码，展示了如何使用它。在 NewWindow3 事件处理程序中，您将看到所有弹出窗口和相应的 url。

    // test code
    private void button1_Click(object sender, EventArgs e)
    {
        _events = new WebBrowserEvents(_wb); // register event sink, make sure ActiveXInsance is not null here

        _wb.Navigate("http://www.popuptest.com/");
    }

// this event sink declares the NewWindow3 event
public class WebBrowserEvents : StandardOleMarshalObject, DWebBrowserEvents2, IDisposable
{
    private AxHost.ConnectionPointCookie _cookie;

    public WebBrowserEvents(WebBrowser wb)
    {
        _cookie = new AxHost.ConnectionPointCookie(wb.ActiveXInstance, this, typeof(DWebBrowserEvents2));
    }

    void DWebBrowserEvents2.StatusTextChange(string text)
    {
        Trace.WriteLine("StatusTextChange text:" + text);
    }

    void DWebBrowserEvents2.ProgressChange(int progress, int progressMax)
    {
        Trace.WriteLine("ProgressChange progress:" + progress + " progress:" + progressMax);
    }

    void DWebBrowserEvents2.CommandStateChange(int command, bool enable)
    {
        Trace.WriteLine("CommandStateChange command:" + command + " enable:" + enable);
    }

    void DWebBrowserEvents2.DownloadBegin()
    {
        Trace.WriteLine("DownloadBegin");
    }

    void DWebBrowserEvents2.DownloadComplete()
    {
        Trace.WriteLine("DownloadComplete");
    }

    void DWebBrowserEvents2.TitleChange(string text)
    {
        Trace.WriteLine("TitleChange text:" + text);
    }

    void DWebBrowserEvents2.PropertyChange(string szProperty)
    {
        Trace.WriteLine("PropertyChange szProperty:" + szProperty);
    }

    void DWebBrowserEvents2.BeforeNavigate2(object pDisp, ref object URL, ref object flags, ref object targetFrameName, ref object postData, ref object headers, ref bool cancel)
    {
        Trace.WriteLine("BeforeNavigate2 URL:" + URL);
    }

    void DWebBrowserEvents2.NewWindow2(ref object pDisp, ref bool cancel)
    {
        Trace.WriteLine("NewWindow2");
    }

    void DWebBrowserEvents2.NavigateComplete2(object pDisp, ref object URL)
    {
        Trace.WriteLine("NavigateComplete2 URL:" + URL);
    }

    void DWebBrowserEvents2.DocumentComplete(object pDisp, ref object URL)
    {
        Trace.WriteLine("DocumentComplete URL:" + URL);
    }

    void DWebBrowserEvents2.OnQuit()
    {
        Trace.WriteLine("OnQuit");
    }

    void DWebBrowserEvents2.OnVisible(bool visible)
    {
        Trace.WriteLine("OnVisible visible:" + visible);
    }

    void DWebBrowserEvents2.OnToolBar(bool toolBar)
    {
        Trace.WriteLine("OnToolBar toolBar:" + toolBar);
    }

    void DWebBrowserEvents2.OnMenuBar(bool menuBar)
    {
        Trace.WriteLine("OnMenuBar menuBar:" + menuBar);
    }

    void DWebBrowserEvents2.OnStatusBar(bool statusBar)
    {
        Trace.WriteLine("OnStatusBar statusBar:" + statusBar);
    }

    void DWebBrowserEvents2.OnFullScreen(bool fullScreen)
    {
        Trace.WriteLine("OnFullScreen fullScreen:" + fullScreen);
    }

    void DWebBrowserEvents2.OnTheaterMode(bool theaterMode)
    {
        Trace.WriteLine("OnTheaterMode theaterMode:" + theaterMode);
    }

    void DWebBrowserEvents2.WindowSetResizable(bool resizable)
    {
        Trace.WriteLine("WindowSetResizable resizable:" + resizable);
    }

    void DWebBrowserEvents2.WindowSetLeft(int left)
    {
        Trace.WriteLine("WindowSetLeft left:" + left);
    }

    void DWebBrowserEvents2.WindowSetTop(int top)
    {
        Trace.WriteLine("WindowSetTop top:" + top);
    }

    void DWebBrowserEvents2.WindowSetWidth(int width)
    {
        Trace.WriteLine("WindowSetWidth width:" + width);
    }

    void DWebBrowserEvents2.WindowSetHeight(int height)
    {
        Trace.WriteLine("WindowSetHeight height:" + height);
    }

    void DWebBrowserEvents2.WindowClosing(bool isChildWindow, ref bool cancel)
    {
        Trace.WriteLine("WindowClosing isChildWindow:" + isChildWindow);
    }

    void DWebBrowserEvents2.ClientToHostWindow(ref int cx, ref int cy)
    {
        Trace.WriteLine("ClientToHostWindow cx:" + cx + " cy:" + cy);
    }

    void DWebBrowserEvents2.SetSecureLockIcon(int secureLockIcon)
    {
        Trace.WriteLine("SetSecureLockIcon secureLockIcon:" + secureLockIcon);
    }

    void DWebBrowserEvents2.FileDownload(ref bool cancel)
    {
        Trace.WriteLine("FileDownload");
    }

    void DWebBrowserEvents2.NavigateError(object pDisp, ref object URL, ref object frame, ref object statusCode, ref bool cancel)
    {
        Trace.WriteLine("NavigateError url:" + URL);
    }

    void DWebBrowserEvents2.PrintTemplateInstantiation(object pDisp)
    {
        Trace.WriteLine("PrintTemplateInstantiation");
    }

    void DWebBrowserEvents2.PrintTemplateTeardown(object pDisp)
    {
        Trace.WriteLine("PrintTemplateTeardown");
    }

    void DWebBrowserEvents2.UpdatePageStatus(object pDisp, ref object nPage, ref object fDone)
    {
        Trace.WriteLine("UpdatePageStatus");
    }

    void DWebBrowserEvents2.PrivacyImpactedStateChange(bool bImpacted)
    {
        Trace.WriteLine("PrivacyImpactedStateChange bImpacted:" + bImpacted);
    }

    void DWebBrowserEvents2.NewWindow3(ref object pDisp, ref bool cancel, int dwFlags, ref object bstrUrlContext, ref object bstrUrl)
    {
        Trace.WriteLine("NewWindow3 bstrUrlContext:" + bstrUrlContext + " bstrUrl:" + bstrUrl);
    }

    public void Dispose()
    {
        if (_cookie != null)
        {
            _cookie.Disconnect();
            _cookie = null;
        }
    }
}

[ComImport, Guid("34A715A0-6587-11D0-924A-0020AFC7AC4D"), InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]
internal interface DWebBrowserEvents2
{
    [DispId(0x66)]
    void StatusTextChange([In] string text);
    [DispId(0x6c)]
    void ProgressChange([In] int progress, [In] int progressMax);
    [DispId(0x69)]
    void CommandStateChange([In] int command, [In] bool enable);
    [DispId(0x6a)]
    void DownloadBegin();
    [DispId(0x68)]
    void DownloadComplete();
    [DispId(0x71)]
    void TitleChange([In] string text);
    [DispId(0x70)]
    void PropertyChange([In] string szProperty);
    [DispId(250)]
    void BeforeNavigate2([In, MarshalAs(UnmanagedType.IDispatch)] object pDisp, [In] ref object URL, [In] ref object flags, [In] ref object targetFrameName, [In] ref object postData, [In] ref object headers, [In, Out] ref bool cancel);
    [DispId(0xfb)]
    void NewWindow2([In, Out, MarshalAs(UnmanagedType.IDispatch)] ref object pDisp, [In, Out] ref bool cancel);
    [DispId(0xfc)]
    void NavigateComplete2([In, MarshalAs(UnmanagedType.IDispatch)] object pDisp, [In] ref object URL);
    [DispId(0x103)]
    void DocumentComplete([In, MarshalAs(UnmanagedType.IDispatch)] object pDisp, [In] ref object URL);
    [DispId(0xfd)]
    void OnQuit();
    [DispId(0xfe)]
    void OnVisible([In] bool visible);
    [DispId(0xff)]
    void OnToolBar([In] bool toolBar);
    [DispId(0x100)]
    void OnMenuBar([In] bool menuBar);
    [DispId(0x101)]
    void OnStatusBar([In] bool statusBar);
    [DispId(0x102)]
    void OnFullScreen([In] bool fullScreen);
    [DispId(260)]
    void OnTheaterMode([In] bool theaterMode);
    [DispId(0x106)]
    void WindowSetResizable([In] bool resizable);
    [DispId(0x108)]
    void WindowSetLeft([In] int left);
    [DispId(0x109)]
    void WindowSetTop([In] int top);
    [DispId(0x10a)]
    void WindowSetWidth([In] int width);
    [DispId(0x10b)]
    void WindowSetHeight([In] int height);
    [DispId(0x107)]
    void WindowClosing([In] bool isChildWindow, [In, Out] ref bool cancel);
    [DispId(0x10c)]
    void ClientToHostWindow([In, Out] ref int cx, [In, Out] ref int cy);
    [DispId(0x10d)]
    void SetSecureLockIcon([In] int secureLockIcon);
    [DispId(270)]
    void FileDownload([In, Out] ref bool cancel);
    [DispId(0x10f)]
    void NavigateError([In, MarshalAs(UnmanagedType.IDispatch)] object pDisp, [In] ref object URL, [In] ref object frame, [In] ref object statusCode, [In, Out] ref bool cancel);
    [DispId(0xe1)]
    void PrintTemplateInstantiation([In, MarshalAs(UnmanagedType.IDispatch)] object pDisp);
    [DispId(0xe2)]
    void PrintTemplateTeardown([In, MarshalAs(UnmanagedType.IDispatch)] object pDisp);
    [DispId(0xe3)]
    void UpdatePageStatus([In, MarshalAs(UnmanagedType.IDispatch)] object pDisp, [In] ref object nPage, [In] ref object fDone);
    [DispId(0x110)]
    void PrivacyImpactedStateChange([In] bool bImpacted);
    [DispId(0x111)]
    void NewWindow3([In, Out, MarshalAs(UnmanagedType.IDispatch)] ref object pDisp, [In, Out] ref bool cancel, [In] int dwFlags, [In] ref object bstrUrlContext, [In] ref object bstrUrl);
}