A berth is a designated location in a port or harbour used for mooring vessels when they are not at sea. Berths provide a vertical front which allows safe and secure mooring that can then facilitate the unloading or loading of cargo or people from vessels. 1 Locations in a Port.
Asynchronous Callbacks. Delegates can also be used as CallBacks. CallBacks are used in many Windows API calls. You pass in a function pointer to the API call. When the API call gets finished with it's job, it then âcalls backâ to the function via the function pointer you passed it. This allows your code to know when the API call is done.
Street View Service Requests. Accessing the Street View service is asynchronous, since the Google Maps API needs to make a call to an external server. For that reason, you need to pass a callback method to execute upon completion of the request.treet View Service Requests. Accessing the Street View service is asynchronous, since the Google Maps API needs to make a call to an external server. For that reason, you need to pass a callback method to execute upon completion of the request.