tt_message_context_val(3) ToolTalk Functions tt_message_context_val(3)NAMEtt_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.
SEE ALSOtt_c(5), tt_ptr_error(3), tt_free(3).
ToolTalk 1.3 1 March 1996 tt_message_context_val(3)
