+
+ /**
+ Set a toggle button to the checked or unchecked state.
+
+ @param button_id
+ ID of the toggle button to manipulate.
+ @param checked
+ @true to set the button to the toggled/pressed/checked state,
+ @false to set it to the untoggled/unpressed/unchecked state.
+ */
+ virtual void ToggleButton(int button_id, bool checked);