get_selected_rows
Description:
Gets the selected rows of the table by initializing **selected with the selected row numbers.
This array should be freed by the caller.
Parameters:
| this | 
           a GObject instance that implements AtkTableIface  | 
      
| selected | 
           a int** that is to contain the selected row numbers  | 
      
Returns:
| 
           a gint representing the number of selected rows, or zero if value does not implement this interface.  |