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NAME
     tt_message_arg_bval - retrieve the  byte-array  value  of  a
     message argument

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

DESCRIPTION
     The tt_message_arg_bval() function retrieves the  byte-array
     value of the nth message argument.

     The m argument is the opaque handle for the message involved
     in  this  operation.   The  n  argument is the number of the
     argument to be retrieved.  The first  argument  is  numbered
     zero.   The  value  argument  is  the address of a character
     pointer to which the ToolTalk service is to point  a  string
     that  contains  the contents of the argument.  The len argu-
     ment is the address of an integer to which the ToolTalk ser-
     vice is to set the length of the value in bytes.

RETURN VALUE
     Upon successful completion, the tt_message_arg_bval()  func-
     tion  returns the status of the operation as one of the fol-
     lowing 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_NUM
                The integer value  passed  was  invalid  (out  of
                range).

        TT_ERR_POINTER
                The pointer passed does not point to an object of
                the correct type for this operation.

SEE ALSO
     tt_c(5).

Партнёры:

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