6.13.2 Working with help files

The IDE contains a help system which can display the following file formats:

TPH
The help format for the Turbo Pascal help viewer.
INF
The OS/2 help format.
NG
The Norton Guide Help format.
HTML
HTML files.

In future some more formats may be added. However, the above formats should cover already a wide spectrum of available help files.

Remark: Concerning the support for HTML files the following should be noted:

  1. The HTML viewer of the help system is limited, it can only handle the most basic HTML files (graphics excluded), since it is only designed to display the Free Pascal help files. 6 .
  2. When the HTML help viewer encounters a graphics file, it will try and find a file with the same name but an extension of .ans; If this file is found, this will be interpreted as a file with ANSI escape sequences, and these will be used to display a text image. The displays of the IDE dialogs in the IDE help files are made in this way.

The menu item ”Help—Files” permits help files to be added to, and deleted from, the list of files in the help table of contents. The help files dialog is displayed in figure (6.37).



Figure 6.37: The help files dialog

PIC


The dialog lists the files that will be presented in the table of contents window of the help system. Each entry has a small descriptive title and a filename next to it. The following actions are available when adding help files:

New
Adds a new file. IDE will display a prompt, in which the location of the help file should be entered.

If the added file is an HTML file, a dialog box will be displayed which asks for a title. This title will then be included in the contents of help.

Delete
Deletes the currently highlighted file from the help system. It is not deleted from the hard disk; only the help system entry is removed.
Cancel
Discards all changes and closes the dialog.
OK
Saves the changes and closes the dialog.

The Free Pascal documentation in HTML format can be added to the IDE’s help system. This way the documentation can be viewed from within the IDE. If Free Pascal has been installed using the installer, the installer should have added the FPC documentation to the list of help files, if the documentation was installed as well.