tt_open man page on HP-UX

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tt_open(library call)					 tt_open(library call)

NAME
       tt_open — return the process identifier for the calling process

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

DESCRIPTION
       The  tt_open  function  returns	the process identifier for the calling
       process.

RETURN VALUE
       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:

       tt_default_session_set
       tt_open

RETURN VALUE
       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.

       TT_ERR_NOMP
		 The ttsession(1) process is not running and the ToolTalk ser‐
		 vice cannot restart it.

APPLICATION USAGE
       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
       Tt/tt_c.h  - Tttt_c(5), tt_fd(3), tt_default_procid(3), tt_default_pro‐
       cid_set(3),	tt_default_session(3),	    tt_default_session_set(3),
       tt_ptr_error(3), tt_free(3).

							 tt_open(library call)
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