从 C# windows 窗体应用程序中检索当前 URL

本文介绍了从 C# windows 窗体应用程序中检索当前 URL的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我一直在使用 Visual C# 设计一个程序，但在使我的程序与 Web 浏览器交互时遇到了一个问题.基本上我需要的是从网络浏览器(Internet Explorer、Firefox、Chrome 等)检索 URL 地址.

I have been designing a program using Visual C# and have came across an issue with making my program interact with web browsers. Basically what I need is to retrieve the URL address from a web browser (Internet Explorer, Firefox, Chrome etc...).

我认为这不会是一项太难的任务，但经过几天的研究和测试，这似乎几乎是不可能的！到目前为止，我遇到了这个......

I figured this wouldn't be too difficult of a task, but after days and days of research and tests, it seems almost impossible! Thus far, I have come across this...

获取 Firefox 网址?

代码如下:

using NDde.Client;
Class Test
{
    public static string GetFirefoxURL()
    {
        DdeClient dde = new DdeClient("Firefox", "WWW_GetWindowInfo");
        dde.Connect();
        string url = dde.Request("URL", int.MaxValue);
        dde.Disconnect();
        return url;
    }
}

这对 Firefox 来说是完美的，但由于某种原因，我无法让它与其他任何东西一起使用.我已将Firefox"部分代码更改为Iexplore"，就像我在互联网上找到的那样，并尝试了其他形式的 Internet Explorer，但出现以下错误:

Which is perfect for Firefox, but for some reason I cannot get it to work with anything else. I have changed the portion of the code that says "Firefox" to "Iexplore" like I found all over the internet, along with trying other forms of expressing Internet Explorer, and I get the following error:

客户端无法连接到IExplorer|WWW_GetWindowInfo"，请确保服务器应用程序正在运行并且它支持指定的服务名称和主题名称对"

对这个问题的任何帮助将不胜感激，因为它已成为一项艰巨的任务.

Any help on the issue would be much appreciated as it has become quite a task to figure out.

推荐答案

这是我目前所拥有的(虽然 Chrome 我没有找到任何有用的文章，除了使用 FindWindowEx(我不是特别喜欢那种方法，个人).

Here's what I have so far (though Chrome I'm not finding any helpful articles on, other than using FindWindowEx (I don't particularly like that method, personally).

public class BrowserLocation
{
    /// <summary>
    /// Structure to hold the details regarding a browed location
    /// </summary>
    public struct URLDetails
    {
        /// <summary>
        /// URL (location)
        /// </summary>
        public String URL;

        /// <summary>
        /// Document title
        /// </summary>
        public String Title;
    }

    #region Internet Explorer

    // requires the following DLL added as a reference:
    // C:WindowsSystem32shdocvw.dll

    /// <summary>
    /// Retrieve the current open URLs in Internet Explorer
    /// </summary>
    /// <returns></returns>
    public static URLDetails[] InternetExplorer()
    {
        System.Collections.Generic.List<URLDetails> URLs = new System.Collections.Generic.List<URLDetails>();
        var shellWindows = new SHDocVw.ShellWindows();
        foreach (SHDocVw.InternetExplorer ie in shellWindows)
            URLs.Add(new URLDetails() { URL = ie.LocationURL, Title = ie.LocationName });
        return URLs.ToArray();
    }

    #endregion

    #region Firefox

    // This requires NDde
    // http://ndde.codeplex.com/

    public static URLDetails[] Firefox()
    {
        NDde.Client.DdeClient dde = new NDde.Client.DdeClient("Firefox", "WWW_GetWindowInfo");
        try
        {
            dde.Connect();
            String url = dde.Request("URL", Int32.MaxValue);
            dde.Disconnect();

            Int32 stop = url.IndexOf('"', 1);
            return new URLDetails[]{
                new URLDetails()
                {
                    URL = url.Substring(1, stop - 1),
                    Title = url.Substring(stop + 3, url.Length - stop - 8)
                }
            };
        }
        catch (Exception)
        {
            return null;
        }
    }

    #endregion
}

class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("Internet Explorer: ");
        (new List<BrowserLocation.URLDetails>(BrowserLocation.InternetExplorer())).ForEach(u =>
        {
            Console.WriteLine("[{0}]
{1}
", u.Title, u.URL);
        });
        Console.WriteLine();

        Console.WriteLine("Firefox:");
        (new List<BrowserLocation.URLDetails>(BrowserLocation.Firefox())).ForEach(u =>
        {
            Console.WriteLine("[{0}]
{1}
", u.Title, u.URL);
        });
        Console.WriteLine();
    }
}

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