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Create HTML Help and HTML help workshop with HtmlHelp VC++ MFC Example

 
 

HTML_Help_6.GIF

Introduction

Last time I tried to search the Internet to get a complete guide of using HTML in an MFC application. I found that there are many topics concern with HTML Help but none of them have the same purpose with my desired work, so after working with HTML Help Workshop and researching documents, I finally decided to write a topic about working with HTML help from scratch.

In this presentation, I'll take you through 9 steps in 2 main stages to integrate an HTML help file with an MFC application. The 2 main stages are:

  1. Create HTML Help files.
  2. Link HTML file to your own MFC application.

Stage 1: Create *.chm (Compiled Help Modul) file

First of all, you need to have HTML Help Workshop installed, it can be downloaded from: Microsoft HTML Help Downloads.

Edit your own *.chm file (Compiled Help Module). You can start from the beginning but I think you’d better modify an existing .chm file that have the same structure with your desired .chm file. Do the following steps:

Step 1. Open HTML Help Workshop.

Step 2. Click File->Decompile

Step 3. Choose destination folder where you want to store files after decompiling. You should create a new folder to store files because many files would be generate after decompiling.

  • Select the existing .chm file.
HTML_Help_1.GIF

Step 4. Using an HTML Editor, MS Frontpage for example, to edit the content of the HTML file(s) that has been extracted by HTML Help Workshop to the content that you want to have. This step is alike the process you edit a website.

Step 5. Import and Compile your own help

  • Click File->New->Project. One dialog appear, select Next.
  • Assign a name for the project. Click Next.
  • Check all checkboxes you see in the new dialog. Click Next.
  • In the next three dialog, the New Project Wizards will ucancode.net you to locate the table of contents, the Help index and the html files. You simply choose the appropriate files that HTML Help Workshop has extracted in the folder in Step 3. Click Next each time you've answered one dialog.
  • Click File->Compile

That all you need to do to create your own .chm file, now forward to the 2nd stage.

Stage 2: Aggregate Help file to MFC application

Step 6. Create a registry key:

  • Open command window, type regedit

     

  • Browse to KEY_LOCAL_MACHINE\Software\Microsoft\Windows\HTMLHelp
  • Create a new string value as follows:
    • Value name is your HTML help file name, for example: SampleHelp.chm
      • Value data is the path where the .chm file locate, for example: C:\TestHelp\MyHelp\ (remember to put one back-slash at the end).

HTML_Help_5.GIF

Step 7. Create an MFC application.

Step 8. Import htmlhelp.lib to your application

  • Right click on the Resource Files->Add Files to Folder.
  • Select htmlhelp.lib.

HTML_Help_3.GIF

Step 9. Call Help

 

  • Create a button.
  • Add this line in the TestHelpDlg.cpp
Collapse Copy Code
#include "htmlhelp.h"
  • Assign an even to call the Help
Collapse Copy Code
void CTestHelpDlg::OnHelp() 
{
  HtmlHelp(this->m_hWnd, "HelpSample.chm", HH_DISPLAY_TOPIC, NULL);
}

That's your work done!

 

 

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