tt_message_context_val - retrieve the character string of a message's context
#include <Tt/tt_c.h> char *tt_message_context_val(Tt_message m, const char *slotname);
tt_message_context_val(3) ToolTalk Functions tt_message_context_val(3)
NAME
tt_message_context_val - retrieve the character string of a message's
context
SYNOPSIS
#include <Tt/tt_c.h>
char *tt_message_context_val(Tt_message m,
const char *slotname);
DESCRIPTION
The tt_message_context_val() function retrieves the character string of
a message's context.
The m argument is the opaque handle for the message involved in this
operation. The slotname argument describes the context of this mes-
sage.
If there is no context slot associated with slotname, tt_message_con-
text_val() returns a NULL pointer in slotname.
RETURN VALUE
Upon successful completion, the tt_message_context_val() function
returns the contents for the message argument. The application can use
tt_ptr_error(3) to extract one of the following Tt_status values from
the returned pointer:
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.
APPLICATION USAGE
The application should use tt_free(3) to free any data stored in the
address returned by the ToolTalk API.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | library/tooltalk |
+---------------+------------------+
|Stability | Committed |
+---------------+------------------+
SEE ALSO
tt_c(5), tt_ptr_error(3), tt_free(3).
ToolTalk 1.3 1 March 1996 tt_message_context_val(3)