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

Parameters:

handler

The Atk::FocusHandler to be attached to component .

Returns:

A handler id which can be used in atk_component_remove_focus_handler or zero if the handler was already added.

Definition at line 653 of file component.cc.

References Atk::Component::gobj().

{
  return atk_component_add_focus_handler(gobj(), handler);
}