.. highlightlang:: us

.. index:: AppHelp

.. _apphelp:

AppHelp
=======

.. us.tag  AppHelp NOTREADYENGLISH App New320 Changed5200

:ref:`AppHelp` opens the UniPlot help system.

.. function::  bool = AppHelp(ssKeyword)
               bool = AppHelp(ssKeyword, ssFileName)

.. us.return

**Return Value**

If the function succeeds, the return value is TRUE (1); otherwise it is FALSE (0).

.. us.params

**Parameters**

.. uparam:: ssKeyword

   *ssKeyword* is a keyword available in the chm file index.

.. uparam:: ssFileName

   *ssFileName* is the complete chm file name. If this parameter is not given
   standard chm file is used (:file:`up-de.chm` or :file:`up-en.chm`).

.. us.history

**History**

.. list-table::
   :header-rows: 1

   * - Version
     - Description
   * - 5.20
     - ...
   * - 3.2
     - New.

.. seealso::
   :ref:`overview-application-object`,
   :ref:`AppHelpOptions`

:sub:`id-85561`