get_row_separator_func
Description:
[ CCode ( delegate_target = false ) ]
public unowned TreeViewRowSeparatorFunc? get_row_separator_func ()
  public unowned TreeViewRowSeparatorFunc? get_row_separator_func ()
Returns the current row separator function.
Note: 
      
        
    
    Use [class@Gtk.DropDown]
Parameters:
| this | a `GtkComboBox` | 
Returns:
| the current row separator function. |