List all topics from a CHM file

I am trying to 开发者_开发技巧get a CHM file to open to a specific topic using C#.

I have tried using

Help.ShowHelp(this, path, HelpNavigator.Topic, "TopicTitle");

but it doesn't find the page. I must not be keying in the topic title correctly. Is there a way that I can programatically retrieve all of the topics from a CHM file so that I can see what they are?

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No, the HtmlHelp API function is far too primitive to support enumerating topics. You could use the 7-zip file manager to look inside the .chm file. Right-click the file and choose "Open Inside". Or use the help authoring tool that was used.

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If you open a CHM file, and right click on a help page, you can choose the Properties command.
In the middle of the Properties page there is a property called: Address (URL).
The end of the URL contains the topic string used to open the help file to the correct page.

Here is an example: mk:@MSITStore:C:\Program%20Files\Sisulizer%202010\Sisulizer.chm::/OutputFiles.htm

If the URL is too long to see the topic at the end, you can select the address with your mouse and scroll to the end.

Here is a screen shot.

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You may also use the following, where path is path to the chm file:

using System.Windows.Forms;

Help.ShowHelp(this, path, HelpNavigator.KeywordIndex, "Topic title");

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I am not sure about how to programmatically retrieve topics from CHM. But I changed the one line code this way and it worked.

Help.ShowHelp(this, path , HelpNavigator.TopicId,"TopicTitle");