添加并获取CHM文件版本 [英] Add and get CHM file version

问题描述

我需要添加版本信息并从CHM文件中检索它，以便有可能向用户发出有关新的 CHM文件版本可用和下载的警报消息.

I need to add version info and retrieve it from the CHM file to make it possible to make an alert message to a user about a new CHM-file version available and downloaded.

这意味着，我应该在不同机器(服务器和客户端)上比较 CHM 的版本.

It means, that I should compare versions of CHM on different machines (Server and clients).

另一种方法是日期和时间检查，但是我应该记住时区，所以这很复杂，因为根据Windows SDK关于SetFileTime函数和FILETIME结构的帮助，还应该记住不同的文件系统. .

The other way is date and time checking, but I should remember about time zones, so this is complicated, because also one should remember about different file systems, according to Windows SDK help about SetFileTime function and FILETIME structure.

如果有人知道窍门-请分享.

If someone knows the trick - please share.

推荐答案

.chm文件没有版本信息.您将需要找到一些其他方法来标记文件版本.

.chm files don't have version information. You will need to find some alternative way to mark the file version.

我想到的一种方法是在包含该版本的帮助文件中包含一个主题.我想这个主题将被隐藏，没有任何其他主题链接，不在目录等中.

One way that occurs to me is to include a topic in the help file that contains the version. I imagine that this topic would be hidden, that is not linked by any other topic, not in the table of contents, etc.

剩下的就是让您的应用程序能够从帮助文件中读取该主题.我敢肯定，如果您可以使用.chm文件解析器，则可以完成该操作.也许更容易获得平台浏览器为您阅读的主题.您可以使用IHTMLDocument2读取URI，如下所示:

All that remains is for your application to be able to read that topic from the help file. I'm sure that can be done with a .chm file parser, if you can obtain one. Perhaps more easily you can get the platform browser to read the topic for you. You can use IHTMLDocument2 to read a URI like this:

mk:@MSITStore:C:\somedir\somefile.chm::/html/SomeTopic.html

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