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  man pages->Tru64 Unix man pages -> DXmHelpSystemDisplay (3X)              



NAME    [Toc]    [Back]

       DXmHelpSystemDisplay  -  Displays  a topic or directory of
       the help file in Bookreader.

SYNOPSIS    [Toc]    [Back]

       void DXmHelpSystemDisplay(
               Opaque help_context,
               char *help_file,
               char *keyword,
               char *name,
               void ((*routine )()),
               Opaque tag );

PARAMETERS    [Toc]    [Back]

       Used by the DECwindows Motif Help System to pass  required
       LinkWorks   and  help  information  from  one  routine  to
       another.  Optional.  The file name of the  help  file.  If
       Null  or  is  supplied,  Bookreader will use the help file
       name passed in to the DXmHelpSystemOpen routine; otherwise
       a new file name can be passed.  One of two values: "topic"
       or  "dir".   Pointers  to  these  strings  can  be  passed
       instead.   The  topic  symbol  from  the  help callback if
       "topic" is used for the keyword. If "dir"  is  used,  then
       name  refers  to the name of the Bookreader directory that
       should be opened, such as "Contents"  or  "Index".  Either
       specific  strings or pointers to strings may be passed in.
       Used for error processing.  If an error occurs within  the
       DECwindows Motif Help System and it cannot be processed by
       either LinkWorks or Bookreader, the DECwindows Motif  Help
       System   calls  the  error  processing  routine  you  have
       included in your application and passes in an integer,  or
       status,  to  indicate  the  status of the error processing
       operation, as follows:

              Value   Description
              1       The DECwindows  Motif  Help  System  could  not  find  the
                      LinkWorks shareable image.
              2       The  DECwindows  Motif  Help  System could not translate a
                      specified value into a valid file specification.

              Note the following: The status parameter is a  system-supplied
 parameter that supplements the routine
              and tag parameters you have  already  specified  in
              the  application.   If an error cannot be processed
              by either LinkWorks or Bookreader and you have  not
              specified  a  supplementary error handling routine,
              your system will generate an access violation error
              message.   The  parameter  you supply to the previously
 described routine parameter.   Associating  a
              tag  with  the  routine  enables you to more easily
              determine where errors occur.

DESCRIPTION    [Toc]    [Back]


       This routine is not supported on all operating systems.

       The DXmHelpSystemDisplay routine (which you use instead of
       a  call  to the help widget) displays a topic or directory
       of the help file in Bookreader, using the DECwindows Motif
       Help  System.   This  routine  can also be used to display
       topics or directories of books other than the ones  passed
       in to DXmHelpSystemOpen.

SEE ALSO    [Toc]    [Back]

       DXmHelpSystemDisplay(3X), DXmHelpSystemOpen(3X)

[ Back ]
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