WebBrowser 获取页面大小 [英] WebBrowser get page size

问题描述

在 IE 9 及以上属性上使用 WebBrowser 时

When working with WebBrowser on IE 9 and above the property

webBrowser.Document.Body.ScrollRectangle.Size

始终返回 250 x 250 作为主体尺寸.因此，我无法找到检查当前页面大小的方法.

returns always 250 x 250 as body dimensions. Therefore I can't come across a way to check the current page size.

如何使用 IE 9 及以上版本查看 html 页面的实际大小?

How can I check a html page actual size using IE 9 and above?

推荐答案

我找到了一个似乎一直有效的解决方案.

I've found a solution that seemed to work all the time until now.

我希望它能帮助和我有同样问题的人，正如您在 IE 9 或更高版本中可能已经发现的那样，Body 元素包含 ScrollRectangle 属性的默认大小，但是，正如我发现的那样，一些其他元素确实包含不同大小的 ScrollRectangle 属性.

I hope it'll help people with the same problem as I do, as you might have figured out in IE 9 or above, the Body element contains the default size for the ScrollRectangle property, however, as I found out, some other elements do contain the ScrollRectangle property with different sizes.

可以肯定的是，HTML 元素包含正确的 ScrollRectangle 属性，但其他一些元素可能包含大小更大或更小的 ScrollRectangle，有时它更适合.

Most certainly that the HTML element contains a correct ScrollRectangle property, but some other elements might contain a ScrollRectangle greater or smaller in size, and sometimes it fits better.

所以我得出的结论是，检查 ScrollRectangle 属性的所有元素是最明智的做法，脚本如下:

So I've come to a conclusion that checking all the elements for the ScrollRectangle property is the smartest thing to do, here's the script :

int
    CurrentWidth
    , CurrentHeight
    , CurrentMinWidth = WebBrowserOuterPanel.Width
    , CurrentMaxWidth = 0
    , CurrentMinHeight = WebBrowserOuterPanel.Height
    , CurrentMaxHeight = 0;

foreach(HtmlElement webBrowserElement in webBrowser.Document.All)
{
    if ((CurrentWidth = Math.Max(webBrowserElement.ClientRectangle.Width, webBrowserElement.ScrollRectangle.Width)) > CurrentMaxWidth)
        CurrentMaxWidth = CurrentWidth;

    if ((CurrentHeight = Math.Max(webBrowserElement.ClientRectangle.Height, webBrowserElement.ScrollRectangle.Height)) > CurrentMaxHeight)
        CurrentMaxHeight = CurrentHeight;
}

webBrowser.Size = new Size (CurrentMaxWidth > CurrentMinWidth ? CurrentMaxWidth : CurrentMinWidth, CurrentMaxHeight > CurrentMinHeight ? CurrentMaxHeight : CurrentMinHeight);

另一种方式，但可能不正确，实现的想法

Another way but might be not correct, in idea for implementing

HtmlElement webBrowserElement = webBrowser.Document.Body.FirstChild;

CurrentMaxWidth = Math.Max(webBrowserElement.ClientRectangle.Width, webBrowserElement.ScrollRectangle.Width);

CurrentMaxHeight = Math.Max(webBrowserElement.ClientRectangle.Height, webBrowserElement.ScrollRectangle.Height);

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