如何从Javascript调用打印预览？ [英] How can Print Preview be called from Javascript?

问题描述

我有一个应该启动打印预览页面的页面。

I have a page that is supposed to launch the Print Preview page onload.

我发现了这个：

var OLECMDID = 7;
/* OLECMDID values:
* 6 - print
* 7 - print preview
* 1 - open window
* 4 - Save As
*/
var PROMPT = 1; // 2 DONTPROMPTUSER
var WebBrowser = '<OBJECT ID="WebBrowser1" WIDTH=0 HEIGHT=0 CLASSID="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2"></OBJECT>';
document.body.insertAdjacentHTML('beforeEnd', WebBrowser);
WebBrowser1.ExecWB(OLECMDID, PROMPT);
WebBrowser1.outerHTML = "";

但是......

1. 它在FireFox中不起作用。


2. 它有点难看。

对于IE或对FireFox有效的方法有更好的方法吗？

Is there a better way for IE or a way that works for FireFox?

推荐答案

你不能，打印预览是一个浏览器的功能，因此应该受到保护而不被JavaScript调用，因为这会带来安全风险。

You can't, Print Preview is a feature of a browser, and therefore should be protected from being called by JavaScript as it would be a security risk.

这就是为什么你的例子使用Active X，它会绕过JavaScript安全问题。

That's why your example uses Active X, which bypasses the JavaScript security issues.

因此，请使用您应该拥有的打印样式表并将其显示为media = screen，而不是media = print。

So instead use the print stylesheet that you already should have and show it for media=screen,print instead of media=print.

阅读 Alist Apart：Going to Print 获取一篇好文章关于打印样式表的主题。

Read Alist Apart: Going to Print for a good article on the subject of print stylesheets.

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