?
Solved

Use multiple .HLP files in an app

Posted on 1998-08-28
3
Medium Priority
?
196 Views
Last Modified: 2010-04-01
I would like to add a new menu option to my application's help menu to look at an existing help file ( does not need to compile it ).  How could I do that?  Do I use the WinHelp?

You help is appreciated...
0
Comment
Question by:akhaligh
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 

Author Comment

by:akhaligh
ID: 1171469
Edited text of question
0
 
LVL 8

Accepted Solution

by:
Answers2000 earned 150 total points
ID: 1171470
1. Add menu option(s) to your resources
2. Add a handler for the WM_COMMAND message corresponding to the menu option(s)
3. Use the WinHelp API call to start the WinHelp application (full details in the comment below) with your help file
0
 
LVL 8

Expert Comment

by:Answers2000
ID: 1171471
1. WinHelp API call is defined:

BOOL WinHelp( HWND hWndMain,  // handle of window requesting Help
LPCTSTR lpszHelp,
 // address of directory-path string
 
UINT uCommand,
 // type of Help
 
DWORD dwData
 // additional data
 
);
 
2. Set hWndMain to the main window of your app
3. Set lpszHelp to the path to help file
4. Set other 2 params depending on what you want to do
a. uCommand to HELP_CONTENTS, dwData to 0, to just display the contents page of the help file
b. uCommand to HELP_QUIT, dwData to 0, to close the help file (do this when you close your app)
c. uCommand to HELP_HELPONHELP, dwData to 0, to display help on how to use Windows help
d. uCommand to HELP_CONTEXT, dwData to the context id of the topic to display a particular topic (generally you'll need to be the author of the help file to know the topic ids, or get the author to tell you what they are)
e. uCommand to HELP_KEY, dwData to address of a keyword to display help on a particular keyword in your app.  You need to cast, something like
WinHelp( ..etc.., HELP_KEY, (DWORD)(LPCSTR)"keyword" ) ;
f. Many more options are listed in the SDK documentation, most of these are not that useful unless you are the author or have cooperation from the help author.
0

Featured Post

Enroll in August's Course of the Month

August's CompTIA IT Fundamentals course includes 19 hours of basic computer principle modules and prepares you for the certification exam. It's free for Premium Members, Team Accounts, and Qualified Experts!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

C++ Properties One feature missing from standard C++ that you will find in many other Object Oriented Programming languages is something called a Property (http://www.experts-exchange.com/Programming/Languages/CPP/A_3912-Object-Properties-in-C.ht…
Many modern programming languages support the concept of a property -- a class member that combines characteristics of both a data member and a method.  These are sometimes called "smart fields" because you can add logic that is applied automaticall…
The goal of the video will be to teach the user the difference and consequence of passing data by value vs passing data by reference in C++. An example of passing data by value as well as an example of passing data by reference will be be given. Bot…
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.
Suggested Courses
Course of the Month14 days, 22 hours left to enroll

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question