tt_message_context_bval - array value and length of a message's context
#include <Tt/tt_c.h> Tt_status tt_message_context_bval(Tt_message m, const char *slotname, unsigned char **value, int *len);
ToolTalk Functions 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_con-
text_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 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
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 cor-
rect type for this operation.
TT_ERR_SLOTNAME
The specified slotname is syntactically invalid.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | library/tooltalk |
+---------------+------------------+
|Stability | Committed |
+---------------+------------------+
SEE ALSO
tt_c(5).
ToolTalk 1.3 1 March 1996
tt_message_context_bval(3)