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tttk_Xt_input_handler (3)
  • >> tttk_Xt_input_handler (3) ( Solaris man: Библиотечные вызовы )
  • 
    NAME
         tttk_Xt_input_handler  -  Process  ToolTalk  events  for  Xt
         clients
    
    SYNOPSIS
         #include <Tt/tttk.h>
         void tttk_Xt_input_handler(XtPointer procid,
                                    int *source,
                                    XtInputId *id);
    
    DESCRIPTION
         If procid is not NULL, tttk_Xt_input_handler() passes it  to
         tt_default_procid_set(3).  The tttk_Xt_input_handler() func-
         tion then calls tt_message_receive(3), which  retrieves  the
         next  message available, if any, for the default procid.  If
         tt_message_receive(3)     returns     TT_ERR_NOMP,      then
         tttk_Xt_input_handler()   closes  the  default  procid  with
         ttdt_close(3),  and  removes  the  input  source  *id   with
         XtRemoveInput(3X) if id is not zero.  If a message is avail-
         able and tt_message_receive(3) returns it (indicating it was
         not  consumed  by any message or pattern callback), then the
         ToolTalk     service     passes     the      message      to
         tttk_message_abandon(3).
    
    RETURN VALUE
         The tttk_Xt_input_handler() function returns no value.
    
    APPLICATION USAGE
         The application should use tttk_Xt_input_handler() as its Xt
         input  handler  unless  some messages are expected not to be
         consumed by callbacks.  (The only messages  that  absolutely
         cannot  be  intercepted  and consumed by callbacks are those
         that match observe signatures in a ptype or otype.)
    
    EXAMPLES
         int myTtFd;
         char *myProcID;
         myProcID = ttdt_open(&myTtFd, "WhizzyCalc", "Acme", "1.0", 1);
         /* ... */
         /* Process the message that started us, if any */
         tttk_Xt_input_handler(myProcID, 0, 0);
         /* ... */
         XtAppAddInput(myContext, myTtFd, (XtPointer)XtInputReadMask,
                 tttk_Xt_input_handler, myProcID);
    
    SEE ALSO
         tttk(5), ttdt_close(3), tttk_message_abandon(3),
         tt_default_procid_set(3), tt_message_receive(3),
         XtAppAddInput(3X), XtRemoveInput(3X).
    
    
    
    


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