Adding HTML Help

We’re all familiar with HTML Help for applications – usually in the form of .chm files (with the yellow question-mark icon). Typically, constructing these this involves getting to grips with the Microsoft HTML Help Workshop. This includes a tool for building Help projects, and compiling them into .chm files.

This is okay for fine-grained context-sensitive Help, at the level of individual operations and controls. However, if the material is more in the nature of a User Manual, this is probably not the form in which we want to author it. And we will probably want to generate different forms of output, such as general HTML pages and PDF.

A few posts ago, I mentioned producing documentation using the XML-based DITA framework. One of the benefits of this is that content is held in a generic XML-based format, from which outputs of different types can be generated: XHTML, PDF and CHM (and also Java Help). DITA allows us to select and combine various topics (chunks of content) from our User Manual – perhaps the lower-level task or reference topics – and compile these into a .chm file. Apart from the compiler, which is invoked automatically, this does not involve the HTML Help Workshop.

Note on tools: There is a DITA Open Toolkit, but I have been using tools from XMLMind – the free XML Editor (Personal Edition) and the open-source DITA Converter. And very good they are too.

The selection, structuring and ordering of topics is done using a DITA Map file. HTML Help is specified as the output format via options to the DITA Converter.

Having got our .chm file, the next step is to access it from a VBA project. I’d been vaguely aware that you could do this, but had never investigated further. More tomorrow…

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2 Responses to “Adding HTML Help”


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  1. 1 Adding HTML Help – 2 « Roy MacLean’s VBA Blog Trackback on October 23, 2009 at 4:22 pm

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