tt_message_context_bval(library call) tt_message_context_bval(library call)
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 zero 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 mes-
sage. 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 val-
ues:
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/tt_c.h - Tttt_c(5).
tt_message_context_bval(library call)
