초록

The call is then passed by the manager to the lower level function, which returns a result of the call to the manager. The extensions are then notified of the result of the call. This enables the registered extensions to modify the result of the call to provide its extended functionality.

대표청구항 ▼

[ What is claimed is:] [1.] In a computer system having at least one active application program capable of making calls to lower level functions, a method of extending the functionality of at least one of the lower level functions, comprising the steps of:registering multiple extensions for a lower

[ What is claimed is:] [1.] In a computer system having at least one active application program capable of making calls to lower level functions, a method of extending the functionality of at least one of the lower level functions, comprising the steps of:registering multiple extensions for a lower level function with a notification manager, the multiple extensions being capable of providing extended functionality to the lower level function;intercepting a call from an application program to the lower level function;notifying the appropriate registered multiple extensions of the existence of the call, thereby allowing the multiple extensions to provide extended functionality;receiving a response from the notified multiple extensions before passing the call to the lower level function; andpassing the call to the lower level function.