<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE concept PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

<concept id="xhtmlchm">

<title>HTML Help processing</title>

<shortdesc>The <option>htmlhelp</option> transformation creates HTML Help control files. If the build runs on a system

that has the HTML Help compiler installed, the control files are compiled into a CHM file.</shortdesc>

<prolog>

<metadata>

<keywords>

<indexterm>HTML

<indexterm>CHM</indexterm></indexterm>

<indexterm>dita.map.htmlhelp</indexterm>

<indexterm>targets

<indexterm>HTML Help</indexterm></indexterm>

<indexterm><filepath>.hhp</filepath></indexterm>

<indexterm><filepath>.hhc</filepath></indexterm>

<indexterm><filepath>.hhk</filepath></indexterm>

<indexterm>HTML Help</indexterm>

</keywords>

</metadata>

</prolog>

<conbody>

<section>

<p>Once the pre-processing and XHTML processes are completed, most of the HTML Help processing is handled by the

following targets:</p>

<dl>

<dlentry>

<dt><codeph>dita.map.htmlhelp</codeph></dt>

<dd>Create the HHP, HHC, and HHK files. The HHK file is sorted based on the language of the map.</dd>

</dlentry>

<dlentry>

<dt><codeph>dita.htmlhelp.convertlang</codeph></dt>

<dd>Ensures that the content can be processed correctly by the compiler, and that the appropriate code pages

and languages are used.</dd>

</dlentry>

<dlentry>

<dt><codeph>compile.HTML.Help</codeph></dt>

<dd>Attempts to detect the HTML Help compiler. If the compiler is found, the full project is compiled into a

single CHM file.</dd>

</dlentry>

</dl>

</section>

</conbody>

</concept>