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NAME
     tt_message_address - retrieve the address attribute  from  a
     message

SYNOPSIS
     #include <Tt/tt_c.h>
     Tt_address tt_message_address(Tt_message m);

DESCRIPTION
     The  tt_message_address()  function  retrieves  the  address
     attribute from the specified message.

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

RETURN VALUE
     Upon successful completion, the  tt_message_address()  func-
     tion returns a value that specifies which message attributes
     form the address of this message.  The  tt_message_address()
     function returns one of the following Tt_address values:

        TT_HANDLER
                The message is addressed to  a  specific  handler
                that  can perform this operation with these argu-
                ments.

        TT_OBJECT
                The message is addressed  to  a  specific  object
                that  can perform this operation with these argu-
                ments.

        TT_OTYPE
                The message is addressed to the  type  of  object
                that  can perform this operation with these argu-
                ments.

        TT_PROCEDURE
                The message is addressed to any process that  can
                perform this operation with these arguments.

     Note that messages of class TT_OFFER may only be  sent  with
     an  address  of  TT_PROCEDURE.   Attempting to send an Offer
     with any other address will result in  an  error  return  of
     TT_ERR_ADDRESS.

     The application can use tt_int_error(3) to  extract  one  of
     the following Tt_status values from the returned integer:

        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.

        TT_ERR_ADDRESS
                The specified Tt_address is invalid.

SEE ALSO
     tt_c(5), tt_int_error(3).

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