WinHelp

The OS/2 WinHelp implementation supports only the following commands:

• HELP_CONTENTS: Displays contents panel and not the contents option specified in .HPJ file.
  
• HELP_CONTEXT
  
• HELP_PARTIALKEY: Only a null string input can be accepted, which causes the search dialog box to be displayed.
  
• HELP_QUIT

As in Windows, the second parameter of WinHelp-lpszHelpFile- accepts the help file name with path included. But, the path must be defined in the current SET HELP path. Otherwise, an error code is returned. In OS/2, all help files are expected to reside in a directory that is defined in SET HELP path. Otherwise, the Help Manager is not able to locate them.

There is no secondary window support for lpszHelpFile parameter and no macro support.