guint atk_component_add_focus_handler ( AtkComponent* component, AtkFocusHandler handler )
Add the specified handler to the set of functions to be called when this object receives focus events (in or out). If the handler is already added it is not added again.
Deprecated since: 2.9.4
If you need to track when an object gains or
lose the focus, use the
AtkObject::state-change “focused” notification instead.
This method is not directly available to language bindings.
AtkFocusHandlerto be attached to