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NAME
     tt_message_bcontext_set - set  the  byte-array  value  of  a
     message's context

SYNOPSIS
     #include <Tt/tt_c.h>
     Tt_status tt_message_bcontext_set(Tt_message m,
                                       const char *slotname,
                                       const unsigned char *value,
                                       int length);

DESCRIPTION
     The tt_message_bcontext_set() function sets  the  byte-array
     value of a message's context.

     This function overwrites any previous value associated  with
     slotname.

     The m argument is the opaque handle for the message involved
     in  this  operation.   The  slotname  argument describes the
     slotname in this message.  The value argument  is  the  byte
     string  with  the  contents  for  the message argument.  The
     length argument is the length of the value in bytes.

RETURN VALUE
     Upon successful  completion,  the  tt_message_bcontext_set()
     function  returns  the status of the operation as one of the
     following Tt_status values:

        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_SLOTNAME
                The specified slotname is syntactically invalid.

SEE ALSO
     tt_c(5).

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