tt_message_context_bval(3)

NAME
     tt_message_context_bval - retrieve the byte-array value and length of a
     message's context

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

DESCRIPTION
     The tt_message_context_bval() function retrieves the byte-array value and
     length of a message's context.

     If there is no context slot associated with slotname,
     tt_message_context_bval() returns a NULL pointer in slotname and zero in
     len.

     The m argument is the opaque handle for the message involved in this
     operation.  The slotname argument describes the context of this message.
     The value argument points to the location to return the value.  The len
     argument is the length of the value in bytes.

RETURN VALUE
     Upon successful completion, the tt_message_context_bval() 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
     Tttt_c(5).