osf1 man page for dxmhelpsystemopen

Query: dxmhelpsystemopen

OS: osf1

Section: 3x

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

DXmHelpSystemOpen(3X)													     DXmHelpSystemOpen(3X)

NAME
DXmHelpSystemOpen - Completes initialization operations required by LinkWorks and prepares to display a topic from the specified help file name.
SYNOPSIS
void DXmHelpSystemOpen( Opaque *help_context, Widget main_window, char *help_file, void ((*routine )()), Opaque tag );
PARAMETERS
Used by the DECwindows Motif Help System to pass required LinkWorks and help information from one routine to another. Note that help_con- text must be defined globally; the DXmHelpSystemDisplay and DXmHelpSystemClose routines subsequently use the address initially set for this parameter. The identifier (ID) for the main window of the application. The file name of the help file. The default specifications are as follows: ---------------------------------------- Default Description ---------------------------------------- /usr/lib/X11/help/ Directory location .decw_book File extension ---------------------------------------- You can also provide your own location or extension along with the help file name. Note that help_file is required for this routine but is optional for DXmHelpSystemDisplay. 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 indi- cate 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 spec- ified 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
Note This routine is not supported on all operating systems. Within the DECwindows Motif Help System, the DXmHelpSystemOpen routine completes all of the initialization operations required by LinkWorks, such as creating a DECwindows user interface object and a surrogate object, and then prepares to display a topic from the help file name passed in. You should make the call to this routine just before the main loop of your application.
SEE ALSO
DXmHelpSystemClose(3X), DXmHelpSystemDisplay(3X) DXmHelpSystemOpen(3X)
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