CDE

NAME

tttk_message_create − create a message conforming to the Cde conventions

SYNOPSIS

#include <tttk.h>
Tt_message tttk_message_create(Tt_message context,
                               Tt_class the_class,
                               Tt_scope the_scope,
                               const char ∗handler,
                               const char ∗op,
                               Tt_message_callback callback);

DESCRIPTION

The tttk_message_create function creates a message that propagates inherited contexts from one message to another. The tttk_message_create function creates a message and copies onto it all the context slots from context whose slotname begins with the characters ENV_. It gives the created message a Tt_class of the_class and a Tt_scope of the_scope. If handler is not NULL, then tttk_message_create addresses the message as a TT_HANDLER to that procid; otherwise, it gives the message a Tt_address of TT_PROCEDURE. It sets the message’s op to op if op is not NULL. If callback is not NULL, tttk_message_create adds it to the message as a message callback. 

RETURN VALUE

Upon successful completion, the tttk_message_create function returns the created Tt_message , which can be modified, sent, and destroyed like any other Tt_message ; otherwise, it returns an error pointer. The application can use tt_ptr_error(3) to extract one of the following Tt_status values from the returned handle:

TT_ERR_NOMEM
There is insufficient memory available to perform the function.

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

TT_ERR_PROCID
The specified process identifier is out of date or invalid.

SEE ALSO

tttk.h(5), tt_message_create(3), tttk_message_create(3), ttdt_file_notice(3), ttdt_file_request(3)