About the reference section

The reference section provides comprehensive information about how to use the HTML Help API commands, data structures, and notification messages. There are three sections:

• The commands reference provides syntax descriptions and code examples for all commands (uCommand parameter values) that can be passed to HtmlHelp().
• The structures reference provides syntax descriptions for all data structures used by HtmlHelp().
• The notification messages reference provides syntax descriptions for all notification messages sent by HtmlHelp().