set_accessible_role
Description:
[ CCode ( cname = "gtk_widget_class_set_accessible_role" ) ]
public class void set_accessible_role (AccessibleRole accessible_role)
  public class void set_accessible_role (AccessibleRole accessible_role)
Sets the accessible role used by the given widget class.
Different accessible roles have different states, and are rendered differently by assistive technologies.
Parameters:
| this | 
           a widget class  | 
      
| accessible_role | 
           the accessible role to use  |