NSNetServiceBrowser is the complement to NSNetService and it serves two purposes: searching for network domains, and searching for network services advertised on a given domain. When searching for domains we can either look for all domains, or only those that we have registration authority in. These searches are performed by invoking the methods searchForAllDomains and searchForRegistrationDomains, respectively. For more information about Rendezvous and the Net Services APIs in Foundation, see Chapter 6.

@interface NSNetServiceBrowser : NSObject
// Initializers
- (id)init;
// Accessor Methods
- (void)setDelegate:(id)delegate;
- (id)delegate;
// Instance Methods
- (void)removeFromRunLoop:(NSRunLoop *)aRunLoop forMode:(NSString *)mode;
- (void)scheduleInRunLoop:(NSRunLoop *)aRunLoop forMode:(NSString *)mode;
- (void)searchForAllDomains;
- (void)searchForRegistrationDomains;
- (void)searchForServicesOfType:(NSString *)type inDomain:(NSString *)domainString;
- (void)stop;
// Methods Implemented by the Delegate
- (void)netServiceBrowser:(NSNetServiceBrowser *)aNetServiceBrowser didFindDomain:(NSString *)domainString moreComing:(BOOL)moreComing;
- (void)netServiceBrowser:(NSNetServiceBrowser *)aNetServiceBrowser didFindService:(NSNetService *)aNetService moreComing:(BOOL)moreComing;
- (void)netServiceBrowser:(NSNetServiceBrowser *)aNetServiceBrowser didNotSearch:(NSDictionary *)errorDict;
- (void)netServiceBrowser:(NSNetServiceBrowser *)aNetServiceBrowser didRemoveDomain:(NSString *)domainString moreComing:(BOOL)moreComing;
- (void)netServiceBrowser:(NSNetServiceBrowser *)aNetServiceBrowser didRemoveService:(NSNetService *)aNetService moreComing:(BOOL)moreComing;
- (void)netServiceBrowserDidStopSearch:(NSNetServiceBrowser *)aNetServiceBrowser;
- (void)netServiceBrowserWillSearch:(NSNetServiceBrowser *)aNetServiceBrowser;