An
indicator that specifies which session to bring to the foreground the next
time the parent session is selected.
Possible values are shown in the following list:
SET_SESSION_UNCHANGED
Leaves the current setting unchanged.
SET_SESSION_BOND
Establishes a bond between the parent session and the child session. The
child session is brought to the foreground the next time the parent session
is selected. If the child session is selected, the child session is brought
to the foreground.
SET_SESSION_NO_BOND
Specifies bringing the parent session to the foreground the next time the
parent session is selected, and bringing the child session to the foreground
if the child is selected. Any bond previously established with the child
session specified is broken.