atkComponentAddFocusHandler: atkComponentAddFocusHandler
Description
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 againUsage
atkComponentAddFocusHandler(object, handler)
Value
[numeric] a handler id which can be used in atk_component_remove_focus_handler
or zero if the handler was already added.