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  man pages->HP-UX 11i man pages -> tt_open (3)              


 tt_open(library call)                                 tt_open(library call)

 NAME    [Toc]    [Back]
      tt_open - return the process identifier for the calling process

 SYNOPSIS    [Toc]    [Back]
      #include <Tt/tt_c.h>
      char *tt_open(void)

 DESCRIPTION    [Toc]    [Back]
      The tt_open function returns the process identifier for the calling

 RETURN VALUE    [Toc]    [Back]
      The tt_open function also sets this identifier as the default procid
      for the process.  The tt_open(3) function is typically the first
      ToolTalk function called by a process.

      The application must call tt_open(3) before other tt_ calls are made.
      However, there are two exceptions: tt_default_session_set(3) and
      tt_X_session(3) can be called before tt_open.

      A process can call tt_open more than once to obtain multiple procids.
      To open another session, the process must make the following calls in
      the order specified:


 RETURN VALUE    [Toc]    [Back]
      Upon successful completion, the tt_open function returns the character
      value that uniquely identifies the process.  The application can use
      tt_ptr_error(3) to extract one of the following Tt_status values from
      the returned pointer:

      TT_OK     The operation completed successfully.

                The ttsession(1) process is not running and the ToolTalk
                service cannot restart it.

 APPLICATION USAGE    [Toc]    [Back]
      The application should use tt_free(3) to free any data stored in the
      address returned by the ToolTalk API.

      Each procid has its own associated file descriptor, and can join
      another session.  To switch to another procid, the application should
      call tt_default_procid_set.

 SEE ALSO    [Toc]    [Back]
      Tt/tt_c.h - Tttt_c(5), tt_fd(3), tt_default_procid(3),
      tt_default_procid_set(3), tt_default_session(3),
      tt_default_session_set(3), tt_ptr_error(3), tt_free(3).

                                    - 1 -       Formatted:  January 24, 2005
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