嵌入式SVG内容未显示在IE屏幕快照中 [英] Inline SVG Content not displaying in IE Screenshot

问题描述

我正在开发一个缩略图器，由此服务可以在无格式的IE9控件中获取HTML内容的缩略图.通过DrawToBitmap调用以及几个GDI调用，一切都可以顺利进行，但是SVG内容未显示.其他一切似乎都很好，但没有SVG.

I'm working on a thumbnailer whereby a service takes thumbnail images of HTML content in a form-less IE9 control. Everything is working smoothly with a DrawToBitmap call along with a couple of GDI calls, but SVG content is not displaying. Everything else seems to display just fine, but no SVG.

我认为这与SVG在IE中的实现方式有关，但我不知道细节.有什么想法吗?

I figure that this has something to do with how SVG is implemented in IE, but I don't know the details. Any thoughts?

TIA.

推荐答案

答案来自IEBlog的Ted Johnson:

The answer came from Ted Johnson of IEBlog:

IE9没有单独的SVG引擎；都是一个DOM和呈现 管道.但是，如果您的文档不在9标准文档中 模式下，您将不会获得任何SVG内容.我认为默认情况下 .NET中的WebBrowser控件默认为兼容模式.尝试添加 HTML页面顶部的meta标签以强制IE9模式:

IE9 has no separate SVG engine; it’s all one DOM and rendering pipeline. However, if your document isn’t in 9 standards document mode, you’ll not get any SVG content. I think, by default, the WebBrowser control in .NET defaults to compatibility mode. Try adding a meta tag to the top of your HTML page to force IE9 mode:

<meta http-equiv="X-UA-Compatible" content="IE=9">

这确实打开了SVG渲染，就像电灯开关一样.

This, indeed, turned on SVG rendering like a light switch.

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