Question

我在VisualStudio中有一个c＃Forms项目，我想在其中嵌入一个YouTube视频。

为此，我在设计器中添加了一个Web浏览器控件。

浏览器可以正常使用我给他的每个网址除了嵌入的YouTube视频。

而不是视频我得到黑屏，没有声音和“脚本错误”给我以下网址：（https://s.ytimg.com/yts/jsbin/www-embed-player-new-vflQo6seZ/www-embed-player-new.js）

在普通的YouTube中，网页浏览器就好了 - 就像chrome一样。

某种方式不适用于“ youtube.com/embed /...”。

我不认为这是HTML5的问题。

我该如何解决这个问题？

我可以在Winforms中使用其他任何网络浏览器吗？

重现错误的代码:(在Form1 Constractor中）

WebBrowser youtubePlayer = new WebBrowser();
this.Controls.Add(youtubePlayer);
youtubePlayer.Navigate("http://www.youtube.com/embed/M7lc1UVf-VE");

Answer 1

由于不推荐使用其他答案，以下是您现在应该如何做的事情：

WebBrowser控件（WPF和WinForms版本）的行为方式与完整的IE不同。您可能希望实现功能控制以使其行为尽可能接近IE（特别是FEATURE_BROWSER_EMULATION）。这是一些代码：

subClass

例如：

private void SetBrowserFeatureControlKey(string feature, string appName, uint value)
{
    using (var key = Registry.CurrentUser.CreateSubKey(
        String.Concat(@"Software\Microsoft\Internet Explorer\Main\FeatureControl\", feature), 
        RegistryKeyPermissionCheck.ReadWriteSubTree))
    {
        key.SetValue(appName, (UInt32)value, RegistryValueKind.DWord);
    }
}

您应该提出自己的一组功能，并在WebBrowser初始化之前注册它们，例如，在主窗体构造函数中：

private void SetBrowserFeatureControl()
{
    // http://msdn.microsoft.com/en-us/library/ee330720(v=vs.85).aspx

    // FeatureControl settings are per-process
    var fileName = System.IO.Path.GetFileName(Process.GetCurrentProcess().MainModule.FileName);

    // make the control is not running inside Visual Studio Designer
    if (String.Compare(fileName, "devenv.exe", true) == 0 || String.Compare(fileName, "XDesProc.exe", true) == 0) 
        return;

    SetBrowserFeatureControlKey("FEATURE_BROWSER_EMULATION", fileName, GetBrowserEmulationMode()); // Webpages containing standards-based !DOCTYPE directives are displayed in IE10 Standards mode.
    SetBrowserFeatureControlKey("FEATURE_AJAX_CONNECTIONEVENTS", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_ENABLE_CLIPCHILDREN_OPTIMIZATION", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_MANAGE_SCRIPT_CIRCULAR_REFS", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_DOMSTORAGE ", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_GPU_RENDERING ", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_IVIEWOBJECTDRAW_DMLT9_WITH_GDI  ", fileName, 0);
    SetBrowserFeatureControlKey("FEATURE_DISABLE_LEGACY_COMPRESSION", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_LOCALMACHINE_LOCKDOWN", fileName, 0);
    SetBrowserFeatureControlKey("FEATURE_BLOCK_LMZ_OBJECT", fileName, 0);
    SetBrowserFeatureControlKey("FEATURE_BLOCK_LMZ_SCRIPT", fileName, 0);
    SetBrowserFeatureControlKey("FEATURE_DISABLE_NAVIGATION_SOUNDS", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_SCRIPTURL_MITIGATION", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_SPELLCHECKING", fileName, 0);
    SetBrowserFeatureControlKey("FEATURE_STATUS_BAR_THROTTLING", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_TABBED_BROWSING", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_VALIDATE_NAVIGATE_URL", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_WEBOC_DOCUMENT_ZOOM", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_WEBOC_POPUPMANAGEMENT", fileName, 0);
    SetBrowserFeatureControlKey("FEATURE_WEBOC_MOVESIZECHILD", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_ADDON_MANAGEMENT", fileName, 0);
    SetBrowserFeatureControlKey("FEATURE_WEBSOCKET", fileName, 1);
    SetBrowserFeatureControlKey("FEATURE_WINDOW_RESTRICTIONS ", fileName, 0);
    SetBrowserFeatureControlKey("FEATURE_XMLHTTP", fileName, 1);
}

private UInt32 GetBrowserEmulationMode()
{
    int browserVersion = 7;
    using (var ieKey = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Internet Explorer",
        RegistryKeyPermissionCheck.ReadSubTree,
        System.Security.AccessControl.RegistryRights.QueryValues))
    {
        var version = ieKey.GetValue("svcVersion");
        if (null == version)
        {
            version = ieKey.GetValue("Version");
            if (null == version)
                throw new ApplicationException("Microsoft Internet Explorer is required!");
        }
        int.TryParse(version.ToString().Split('.')[0], out browserVersion);
    }

    UInt32 mode = 11000; // Internet Explorer 11. Webpages containing standards-based !DOCTYPE directives are displayed in IE11 Standards mode. Default value for Internet Explorer 11.
    switch (browserVersion)
    {
        case 7:
            mode = 7000; // Webpages containing standards-based !DOCTYPE directives are displayed in IE7 Standards mode. Default value for applications hosting the WebBrowser Control.
            break;
        case 8:
            mode = 8000; // Webpages containing standards-based !DOCTYPE directives are displayed in IE8 mode. Default value for Internet Explorer 8
            break;
        case 9:
            mode = 9000; // Internet Explorer 9. Webpages containing standards-based !DOCTYPE directives are displayed in IE9 mode. Default value for Internet Explorer 9.
            break;
        case 10:
            mode = 10000; // Internet Explorer 10. Webpages containing standards-based !DOCTYPE directives are displayed in IE10 mode. Default value for Internet Explorer 10.
            break;
        default:
            // use IE11 mode by default
            break;
    }

    return mode;
}

这个答案来自这里：C# webbrowser Ajax call 我在尝试修复运行此代码时遇到的javascript错误时发现了它。

Answer 2

请访问YouTube Embedded Players and Player Parameters

您在这里尝试的是IFrame嵌入。试试这个：打开记事本并粘贴它：

<iframe id="ytplayer" type="text/html" width="640" height="390"
src="http://www.youtube.com/embed/HLj0aLPLsys?autoplay=1"
frameborder="0"/>

将其另存为html文件并在浏览器中打开。如果一切顺利，你会看到 Elvis Presley唱的是午夜。这类似于你试图让你的Web浏览器导航到的字符串。

现在回到Visual Studio上的代码并取代之前的代码

youtubePlayer.Navigate("...");

输入此代码：

youtubePlayer.Navigate("http://www.youtube.com/v/HLj0aLPLsys?version=3");//Embedded AS3 Player

或者这个，

youtubePlayer.Navigate("http://www.youtube.com/apiplayer?video_id=HLj0aLPLsys&version=3");//Chromeless AS3 Player

注意：您的问题的两个解决方案都已弃用但工作正常，是最接近的解决方案。

让播放器自动运行视频而无需用户干扰添加到字符串的末尾

&autoplay=1

允许webBrowser占用Bounds set：

形式的整个可用空间

youtubePlayer.Dock = DockStyle.Fill;

还要摆脱恼人的脚本错误消息：

youtubePlayer.ScriptErrorsSuppressed = true;

Youtube在Winforms中嵌入了视频

2 个答案: