HelpSetTopic( cTopic ) -> nil
------------------------------------------------------------------------------


 PARAMETER:

  <cTopic>  is a string that let us specify the default topic where
            automatically show help.


 DESCRIPTION:

  HelpSetTopic() let us select a default help topic, that shows up if
  the user presses the F1 Help Key. We can change this topic in the different
  parts of our program, and thereby provide a context sensitive help.

 EXAMPLE:


    +--------------------------------------------------------------+
    |  /* Set the default topic to the USE_OF_HELP */              |
    |                                                              |
    |  HelpSetTopic( "Use_of_help" )                               |
    |                                                              |
    +--------------------------------------------------------------+


 SOURCE:

  SOURCE\WINAPI\HELP.C