get_tooltip_text
  
  Description:
  public string get_tooltip_text (
Mark mark)
  
 
  
    Queries for a tooltip by emitting a [signal@MarkAttributes:GtkSourceMarkAttributes:query-tooltip-text] signal.
    The tooltip is a plain text.
    Parameters:
    
    Returns:
    
      
        | 
           A tooltip. The returned string should be freed by using g_free when done with it.
           
         |