Help RTF files from Resource RC Files

Environment: VC6

I had just about completed a medium-sized project with quite a few
dialogs and menus in it, and
it was time to start writing help files. Yuk! I still use WinHelp-based
help, partly because I like it, and partly because MFC supplies
transparent F1 help, but being an impoverished
cheapskate academic I haven’t got a commercial help generator.
This meant facing several days of wrestling
with WinWord in RTF format, and I knew from experience that
I was going to be bored stiff and make lots of typing errors
in creating the links.

Being infinitely distractable, I decided that it would be be worth
spending some time writing a topic generator that could read my RC file
and create skeleton RTF files for the menus and dialogs.
The program “Help RC” is the result.

The program parses the selected RC file looking for dialogs, menu items
and string resources associated with menu IDs (the menu prompts). It takes
rather a brute-force approach to the parsing, just looking for the appropriate
keyword headers in the RC file (it skips the DESIGNINFO section).
It stores dialog and menu captions, and the menu prompts in
Maps, with the ID as the key. I used maps because I wanted to eliminate duplicate
menu items with the same ID occurring on different menus. It then iterates
through the dialog and menu maps, passing the dialogs and menu items to list
boxes for sorting and display.

The program can write 3 types of RTF help file.
The “Dlg RTF” button writes out a file where each dialog has a separate page,
with the dialog caption as a title line, and the ID (with ‘H’ prepended) as
the #-footnote. Keyword and title footnotes are also written,
with the caption as the text. The “Menu RTF” button does a similar job, but each page
represents a particular menu item (duplicates are eliminated).

The “Menu Tab” button is a bit different. It
writes out a separate page for each top-level popup menu in each menu resource. The
page shows a table with each menu item on a different row. The first column shows
the menu title (sub-menu items are prepended by the sub-menu popup caption), while the second
column shows the prompt extracted from the string table with the same ID as the menu
item. The overall result is like the various menu pages
of the default file “Afxcore.rtf” generated by the framework. The only tricky bit
of the “Menu Tab” option is dealing with sub-menus. To do this
the program parses the RC file again, and has a simple stack-like response to sub-menus
(popups within popups). It stores the caption of the sub-menu, and prepends it to the
caption of the actual menu item.

I don’t claim to be any expert in RTF format – I ‘stole’ code from Word-generated files,
and whittled it down by experiment to what appears to be the essentials to get
the display I wanted. Neither do I claim that the RC parsing-bit is bullet-proof. However,
it’s worked OK so far on my files, and saved me quite a bit of time, so I offer
the program in the hope that it may also be useful to other people.


Download demo project – 21 Kb

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