hpux man page for tt_pattern_callback_add

tt_pattern_callback_add(library call)									     tt_pattern_callback_add(library call)

NAME
       tt_pattern_callback_add -- register a message-matching callback function

SYNOPSIS
       #include <Tt/tt_c.h>
       Tt_status tt_pattern_callback_add(
       Tt_pattern m,
       Tt_message_callback f);

DESCRIPTION
       The  tt_pattern_callback_add  function registers a callback function that will be automatically invoked by tt_message_receive(3) whenever a
       message matches the pattern.

       The callback is defined in Tt/tt_c.h - Tttt_c(5). If the callback returns TT_CALLBACK_CONTINUE, other callbacks will be run; if no callback
       returns	TT_CALLBACK_PROCESSED, tt_message_receive(3) returns the message.  If the callback returns TT_CALLBACK_PROCESSED, no further call-
       backs will be invoked for this event; tt_message_receive(3) does not return the message.

       The m argument is the opaque handle for the pattern involved in this operation.

       The f argument is the message callback to be run.

RETURN VALUE
       Upon successful completion, the tt_pattern_callback_add function returns the status of the operation as one of the following Tt_status val-
       ues:

       TT_OK	 The operation completed successfully.

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

       TT_ERR_POINTER
		 The pointer passed does not point to an object of the correct type for this operation.

SEE ALSO
       Tt/tt_c.h - Tttt_c(5), tt_pattern_register(3), tt_message_receive(3).

													     tt_pattern_callback_add(library call)