HTML Help API Reference

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Microsoft Corporation

Updated June 10, 1999

Updated April 27, 1999

The HTML Help API Reference provides information on the HTML Help application programming interface (API), which enables a program to display a help window. It includes comprehensive information about how to use the HTML Help API commands, data structures, and notification messages.

The reference provides the following sections:

The overview section describes the HTML Help API, and explains the syntax required to access it.

The reference topics provide syntax descriptions and code examples for all commands that can be passed to HtmlHelp(), and syntax descriptions for all structures and notification messages used by HtmlHelp().

Overview

Reference

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API Commands

• HH_ALINK_LOOKUP
• HH_CLOSE_ALL
• HH_DISPLAY_INDEX
• HH_DISPLAY_SEARCH
• HH_DISPLAY_TEXT_POPUP
• HH_DISPLAY_TOC
• HH_DISPLAY_TOPIC
• HH_GET_LAST_ERROR
• HH_GET_WIN_HANDLE
• HH_GET_WIN_TYPE
• HH_HELP_CONTEXT
• HH_INITIALIZE
• HH_KEYWORD_LOOKUP
• HH_PRETRANSLATEMESSAGE
• HH_SET_WIN_TYPE
• HH_SYNC
• HH_TP_HELP_CONTEXTMENU
• HH_TP_HELP_WM_HELP
• HH_UNINITIALIZE

Structures

• HH_AKLINK
• HH_FTS_QUERY
• HH_LAST_ERROR
• HH_POPUP
• HH_WINTYPE
• HHN_NOTIFY
• HHNTRACK

Notification Messages

• HHN_NAVCOMPLETE
• HHN_TRACK
• HHN_WINDOW_CREATE