ActionItem :: activeItem - Select active action item

The function selects the active action item and sets action and resource name. When no action item is selected, the function returns false. The function returns true, when an active action has been found, i.e. when the function currently executed has been called as consequence of a user action (e.g. pressing a button or selecting a menu item).

When an active action has been found, action() contains the name of the action to be executed, while name() contains the name of the action item.