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tt_message_user_set(3)
CDE


NAME
  tt_message_user_set - stores user information associated with a message
  object

SYNOPSIS
  #include <Tt/tt_c.h>
  Tt_status tt_message_user_set(Tt_message m,
				int key,			       void
  *v);

DESCRIPTION
  The tt_message_user_set function stores user information in data cells
  associated with the specified message object.

  The user data is part of the message object (that is, the storage buffer in
  the application); it is not part of the actual message.  Data stored by the
  sending process in user data cells is not seen by handlers and observers.
  The application can use arguments for data that needs to be seen by
  handlers or observers.

  The m argument is the opaque handle for the message involved in this
  operation.  The key argument is the user data cell in which user
  information is to be stored.	The v argument is the data cell, a piece of
  arbitrary user data that can hold a "void\*O*"

RETURN VALUE
  Upon successful completion, the tt_message_user_set function returns the
  status of the operation as one of the following Tt_status values: The
  operation completed successfully.
  The ttsession1 process is not running and the ToolTalk service cannot
  restart it.
  The pointer passed does not point to an object of the correct type for this
  operation.
  The specified process identifier is out of date or invalid.

SEE ALSO
  Tt/tt_c.h5, tt_message_arg_add3.