与在 Winforms c# 中播放 youtube 视频的 axSockwavePlayer 交互？

Question

小问题：

我如何从播放 youtube 视频的 axShockwavePlayer 获取事件？

(“视频播放”和“暂停”等事件)

长问题：

我有一个带有 shockwave 播放器的 winform 应用程序。

我在其中播放 YouTube 视频，我想知道我是否可以在我的应用程序中与 YouTube 播放器互动。

我正在尝试获取播放器的状态并根据它更改我的背景音乐。

四处搜索我发现了这个问题： How to control the youtube flash player with c#? 和伟大的 answer.

（均为 2012 年）

玩弄它我发现答案似乎太旧了，对我不起作用。

发布的答案包括简单的调试，这就是我点击播放器（并开始播放视频）得到的结果：

ytbPlayer FlashCall: raw: <invoke name="isNaN" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "isNaN()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="
        (function() {
          try {
            yt.www.watch.ads.checkInit();
            return true;
          } catch (e) {
            window['adModuleLoaded'] = true;
            return false;
          }
        })" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "
        (function() {
          try {
            yt.www.watch.ads.checkInit();
            return true;
          } catch (e) {
            window['adModuleLoaded'] = true;
            return false;
          }
        })()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.document.referrer.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.document.referrer.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.top.location.href.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.top.location.href.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.document.referrer.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.document.referrer.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="googletag.cmd.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "googletag.cmd.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="googleGetCompanionAdSlots" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "googleGetCompanionAdSlots()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="google_get_companion_slot_params" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "google_get_companion_slot_params()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.top.location.href.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.top.location.href.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.document.referrer.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.document.referrer.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.document.referrer.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.document.referrer.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.top.location.href.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.top.location.href.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.screen.height.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.screen.height.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.screen.width.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.screen.width.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="navigator.javaEnabled" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "navigator.javaEnabled()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.history.length.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.history.length.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.screen.availHeight.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.screen.availHeight.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.screen.availWidth.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.screen.availWidth.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.screen.colorDepth.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.screen.colorDepth.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.navigator.plugins.length.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.navigator.plugins.length.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.navigator.mimeTypes.length.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.navigator.mimeTypes.length.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="yt.util.activity.getTimeSinceActive" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "yt.util.activity.getTimeSinceActive()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.top.location.href.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.top.location.href.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.document.referrer.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.document.referrer.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="google_show_companion_ad" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "google_show_companion_ad()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="Goog_AdSense_Lidar_sendVastMessage" returntype="xml"><arguments><string>expandedChanged</string><string>741024059.2435002</string><object><property id="opt_bounds"><object><property id="width
"><number>431</number></property><property id="height"><number>62</number></property><property id="expanded"><false/></property><property id="left"><number>20</number></property><property id="top"><number>128</number></property></o
bject></property></object></arguments></invoke>
ytbPlayer_FlashCall: "Goog_AdSense_Lidar_sendVastMessage(expandedChanged741024059.24350024316220128)
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="Goog_AdSense_Lidar_getUrlSignalsList" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "Goog_AdSense_Lidar_getUrlSignalsList()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="Goog_AdSense_Lidar_sendVastMessage" returntype="xml"><arguments><string>expandedChanged</string><string>741024059.2435002</string><object><property id="opt_fullscreen"><false/></property><pro
perty id="opt_bounds"><object><property id="width"><number>431</number></property><property id="height"><number>62</number></property><property id="expanded"><true/></property><property id="left"><number>20</number></property><prop
erty id="top"><number>128</number></property></object></property></object></arguments></invoke>
ytbPlayer_FlashCall: "Goog_AdSense_Lidar_sendVastMessage(expandedChanged741024059.24350024316220128)
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="googletag.cmd.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "googletag.cmd.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="googleGetCompanionAdSlots" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "googleGetCompanionAdSlots()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="google_get_companion_slot_params" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "google_get_companion_slot_params()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.top.location.href.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.top.location.href.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.document.referrer.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.document.referrer.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.document.referrer.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.document.referrer.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.screen.height.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.screen.height.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.screen.width.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.screen.width.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="navigator.javaEnabled" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "navigator.javaEnabled()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.history.length.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.history.length.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.screen.availHeight.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.screen.availHeight.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.screen.availWidth.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.screen.availWidth.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.screen.colorDepth.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.screen.colorDepth.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.navigator.plugins.length.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.navigator.plugins.length.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.navigator.mimeTypes.length.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.navigator.mimeTypes.length.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="yt.util.activity.getTimeSinceActive" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "yt.util.activity.getTimeSinceActive()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.top.location.href.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.top.location.href.toString()
YTplayer_FlashCall: unknownCommand
ytbPlayer FlashCall: raw: <invoke name="window.document.referrer.toString" returntype="xml"><arguments></arguments></invoke>
ytbPlayer_FlashCall: "window.document.referrer.toString()
YTplayer_FlashCall: unknownCommand

这是我使用的代码：

 private void ytbPlayer_FlashCall(object sender, AxShockwaveFlashObjects._IShockwaveFlashEvents_FlashCallEvent e) //asigned as an event handler for FlashCall
        {
            Console.Write("ytbPlayer FlashCall: raw: " + e.request.ToString() + "\r\n");
            // message is in xml format so we need to parse it
            XmlDocument document = new XmlDocument();
            document.LoadXml(e.request);
            // get attributes to see which command flash is trying to call
            XmlAttributeCollection attributes = document.FirstChild.Attributes;
            String command = attributes.Item(0).InnerText;
            // get parameters
            XmlNodeList list = document.GetElementsByTagName("arguments");
            List<string> listS = new List<string>();
            foreach (XmlNode l in list)
            {
                listS.Add(l.InnerText);
            }
            Console.Write("ytbPlayer_FlashCall: \"" + command.ToString() + "(" + string.Join(",", listS) + ")\r\n");
            // Interpret command
            switch (command)
            {
                case "onYouTubePlayerReady": YTready(listS[0]); break;
                case "YTStateChange": YTStateChange(listS[0]); break;
                case "YTError": YTStateError(listS[0]); break;
                default: Console.Write("YTplayer_FlashCall: unknownCommand\r\n"); break;
            }
        }

        private string ytbPlayer_CallFlash(string ytFunction)
        {
            string flashXMLrequest = "";
            string response = "";
            string flashFunction = "";
            List<string> flashFunctionArgs = new List<string>();

            Regex func2xml = new Regex(@"([a-z][a-z0-9]*)(\(([^)]*)\))?", RegexOptions.Compiled | RegexOptions.IgnoreCase);
            Match fmatch = func2xml.Match(ytFunction);

            if (fmatch.Captures.Count != 1)
            {
                Console.Write("bad function request string");
                return "";
            }

            flashFunction = fmatch.Groups[1].Value.ToString();
            flashXMLrequest = "<invoke name=\"" + flashFunction + "\" returntype=\"xml\">";
            if (fmatch.Groups[3].Value.Length > 0)
            {
                flashFunctionArgs = parseDelimitedString(fmatch.Groups[3].Value);
                if (flashFunctionArgs.Count > 0)
                {
                    flashXMLrequest += "<arguments><string>";
                    flashXMLrequest += string.Join("</string><string>", flashFunctionArgs);
                    flashXMLrequest += "</string></arguments>";
                }
            }
            flashXMLrequest += "</invoke>";

            try
            {
                Console.Write("YTplayer_CallFlash: \"" + flashXMLrequest + "\"\r\n");
                response = ytbPlayer.CallFunction(flashXMLrequest);
                Console.Write("YTplayer_CallFlash_response: \"" + response + "\"\r\n");
            }
            catch
            {
                Console.Write("YTplayer_CallFlash: error \"" + flashXMLrequest + "\"\r\n");
            }

            return response;
        }

        private static List<string> parseDelimitedString(string arguments, char delim = ',')
        {
            bool inQuotes = false;
            bool inNonQuotes = false;
            int whiteSpaceCount = 0;

            List<string> strings = new List<string>();

            StringBuilder sb = new StringBuilder();
            foreach (char c in arguments)
            {
                if (c == '\'' || c == '"')
                {
                    if (!inQuotes)
                        inQuotes = true;
                    else
                        inQuotes = false;

                    whiteSpaceCount = 0;
                }
                else if (c == delim)
                {
                    if (!inQuotes)
                    {
                        if (whiteSpaceCount > 0 && inQuotes)
                        {
                            sb.Remove(sb.Length - whiteSpaceCount, whiteSpaceCount);
                            inNonQuotes = false;
                        }
                        strings.Add(sb.Replace("'", string.Empty).Replace("\"", string.Empty).ToString());
                        sb.Remove(0, sb.Length);
                    }
                    else
                    {
                        sb.Append(c);
                    }
                    whiteSpaceCount = 0;
                }
                else if (char.IsWhiteSpace(c))
                {
                    if (inNonQuotes || inQuotes)
                    {
                        sb.Append(c);
                        whiteSpaceCount++;
                    }
                }
                else
                {
                    if (!inQuotes) inNonQuotes = true;
                    sb.Append(c);
                    whiteSpaceCount = 0;
                }
            }
            strings.Add(sb.Replace("'", string.Empty).Replace("\"", string.Empty).ToString());


            return strings;
        }

        private void YTready(string playerID)
        {
            //YTState = true;
            //start eventHandlers
            ytbPlayer_CallFlash("addEventListener(\"onStateChange\",\"YTStateChange\")");
            ytbPlayer_CallFlash("addEventListener(\"onError\",\"YTError\")");
        }

        private void YTStateChange(string YTplayState)
        {
            switch (int.Parse(YTplayState))
            {
                case -1: gm_Name.Text = "not started"; break; //not started yet
                case 1: Console.WriteLine("playing");  break; //playing
                case 2: Console.WriteLine("paused"); break; //paused
                                                  //case 3: ; break; //buffering
                case 0: Console.WriteLine("YOU"); break; //ended
            }
        }
        private void YTStateError(string error)
        {
            Console.Write("YTplayer_error: " + error + "\r\n");
        }

查看调试代码，没有找到可以让我知道用户点击了shockwaveplayer的关键字。

如何更改代码以匹配当前的 youtube api？

Answer 1

我的问题原来是 youtube API 没有打开，因为我将 ShockwavePlayer 定向到错误的 youtube 视频地址。

而不是：

ytbPlayer.Movie = @"http://www.youtube.com/v/" + video;

我应该写：

ytbPlayer.Movie = @"http://www.youtube.com/v/" + video + "?version=3&enablejsapi=1";

与在 Winforms c# 中播放 youtube 视频的 axSockwavePlayer 交互？

Interacting with axSockwavePlayer playing a youtube video in Winforms c#?

.net

c#

youtube-api

axshockwaveflash

winforms

小问题：

长问题：