tt_session_prop(library call) tt_session_prop(library call)
NAMEtt_session_prop — return the ith value of a session property
SYNOPSIS
#include <Tt/tt_c.h>
char *tt_session_prop(
const char *sessid,
const char *propname,
int i);
DESCRIPTION
The tt_session_prop function returns the ith value of the specified
session property.
The sessid argument is the name of the session joined. The application
can use the sessid value returned when tt_default_session is called.
The propname argument is the name of the property from which a value is
to be retrieved. The name must be less than 64 bytes. The i argument
is the number of the item in the property name list for which the value
is to be obtained. The list numbering begins with zero.
RETURN VALUE
Upon successful completion, the tt_session_prop function returns the
value of the requested property. If there are i values or fewer, it
returns NULL. 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 ser‐
vice cannot restart it.
TT_ERR_NUM
The integer value passed was invalid (out of range).
TT_ERR_PROPNAME
The specified property name is syntactically invalid.
TT_ERR_SESSION
The specified ToolTalk session is out of date or invalid.
APPLICATION USAGE
The application should use tt_free(3) to free any data stored in the
address returned by the ToolTalk API.
If the returned value has embedded nulls, it is impossible to determine
how long it is. The application can use tt_session_bprop(3) for values
with embedded nulls.
SEE ALSO
Tt/tt_c.h - Tttt_c(5), tt_ptr_error(3), tt_free(3).
tt_session_prop(library call)
