After you have created an HTML Help (CHM) file, you will probably want to integrate it with your application and provide context-sensitive Help. Below are code examples that demonstrate how to connect a CHM help file with a programming language or IDE.
Working with a CHM File from a VBA Application
Please note that in a VBA application we use HTML Help API calls directly.
Declare the Following Constants:
Public Const HH_DISPLAY_TOPIC = &H0 Public Const HH_DISPLAY_TOC = &H1 Public Const HH_DISPLAY_INDEX = &H2 Public Const HH_HELP_CONTEXT = &HF
Declare the HTMLHelp() API function:
Declare Function HTMLHelp Lib "hhctrl.ocx" Alias "HtmlHelpA" (ByVal hwndCaller As Long, ByVal pszFile As String, ByVal uCommand As Long, ByVal dwData As Long) As Long
Call a help topic by Context Id:
HTMLHelp 0, MyHelpFile, HH_HELP_CONTEXT, MyTopicContextID
Show the Table of Contents:
HTMLHelp 0, MyHelpFile, HH_DISPLAY_TOC, 0