Appends a new row to list_store. 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 ListStore.set or ListStore.setValue.
An unset gtk.TreeIter to set to the appended row
Appends a new row to list_store. 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 ListStore.set or ListStore.setValue.