In order to implement Help topics in separate screens with VB's
HelpContextID property, the underlying help project must have separate topics
defined and each topic must have its own unique identifying number for use by
VB's HelpContextID.
Each Topic is defined in a separate HTML (*.htm) file, and the
association between Topic files and HelpContextID numbers is accomplished by one
or more mapping files (*.h) and the [FILES], [ALIAS], and [MAP] sections of the
project file. A brief summary of the role of each of these elements follows:
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Topic files (*.htm) contain the actual content of help topics. They are in HTML (Web page) format.
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The [FILES] section in the *.hhp file specifies all the Topic files used
in the help project.
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Mapping files (*.h) define the Topic ID numbers that will be used by VB
to identify topics in the help file and assign a uniquely named constant to each
Topic ID.
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The [MAP] section in the *.hhp file specifies all the mapping files used
in the help project.
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The [ALIAS] section in the *.hhp file ties together the named constants defined
in the mapping files (*.h) with individual Topic files (*.htm).
We discuss the use of each of these elements in the following
sections. If you want to enable users to navigate to other Help file topics while
viewing individual Help topics, then you also must supply either an Index or a
Contents file (developers often supply both).
