检测是否有网页嵌入视频 [英] detect if there is a web page embedded video

问题描述

我想问问是否有人知道使用Visual Basic的代码，该代码可以检测网页是否具有嵌入式视频并可以获取该视频的URL?


我希望有人能帮助我.

谢谢...

I would like to ask if someone knows a code using visual basic that can detect if a web page has an embedded video and could get the url of that video?


I hope someone can help me..

Thanks...

推荐答案

没有理由要检测到这一点.每个浏览器都将有所不同，并且它们根本不会公开用于处理其文档对象的相同接口.

也没有在这种情况下触发的系统事件.

There''s no wya to detect this. Every browser is going to be different and they do not expose the same interfaces, if at all, for working with their document objects.

There is no system event that fires on this condition either.

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