sibling
. If sibling
is NULL
, then the row will
be appended to the end of the list. iter
will be changed to point to this
new row. The row will be empty after this function is called. To fill in
values, you need to call gtkListStoreSet
or gtkListStoreSetValue
.gtkListStoreInsertBefore(object, sibling)
object
sibling
GtkTreeIter
, or NULL
. [ allow-none ]iter
GtkTreeIter
to set to the new row