TRODiscoveryClient Class

This is a Library topic for RemObjects SDK for Delphi
This page is generated from external data, please do not update

Interfaces — Classes — Aliases — Implements

Overview

This class implements the client side of the local network server discovery infrastructure in RemObjects SDK.

Location

uRODiscovery.pas

• Ancestry: TComponent | TROComponent | TROCustomDiscoveryClient | TRODiscoveryClient

Properties

Channel
Channel which will be used to locate servers. property Channel:
Message
Defines the message format to use to talk to the servers. property Message:
OnDiscoveryException
Fires if any exception was raised while probing for servers.If an event handler is assigned, exceptions will not be re-raised after the event handler has executed. property OnDiscoveryException:
OnNewServersFound
Fires whenever the ServerList has been updated; whether new servers have been found or old servers have been removed. property OnNewServersFound:
OnNewServiceFound
Fires whenever a new server responded to the broadcast.The event gets passed the server name, as well as any user-specific TRODiscoveryOptions that might have been returned from the server. The event gets fired before the newly found server is added to the ServerList. property OnNewServiceFound:
ServerList
Contains the list of servers that have been found to provide the requested Service. Call the RefreshServerList to (re)query the network and find new servers. property ServerList:
ServiceName
Specifies the Service name to look for on the local network. property ServiceName:

Instance Methods

constructor Create   override     (declared in TROCustomDiscoveryClient)
constructor Create(aOwner: TComponent) Parameters: aOwner:
destructor Destroy   override     (declared in TROCustomDiscoveryClient)
destructor Destroy
Assign   override     (declared in TROCustomDiscoveryClient)
procedure Assign(Source: TPersistent) Parameters: Source:
CheckProperties     (declared in TROCustomDiscoveryClient)
procedure CheckProperties
Notification   protected override     (declared in TROCustomDiscoveryClient)
procedure Notification(aComponent: TComponent; aOperation: TOperation) Parameters: aComponent: aOperation:
RefreshServerList     (declared in TROCustomDiscoveryClient)
Performs a network broadcast to find new servers. If needed, a user-defined TRODiscoveryOptions descendant might be passed to the server to provide additional details or requirements for the desired service. As responses from servers come in, the ServerList property is filled and the OnNewServiceFound and OnNewServersFound events are fired. procedure RefreshServerList(aDiscoveryOptions: TRODiscoveryOptions) Parameters: aDiscoveryOptions:
ROFreeNotification     (declared in TROComponent)
procedure ROFreeNotification(AComponent: TComponent) Parameters: AComponent:
RORemoveFreeNotification     (declared in TROComponent)
procedure RORemoveFreeNotification(AComponent: TComponent) Parameters: AComponent:
SendRemoveNotification   protected     (declared in TROComponent)
procedure SendRemoveNotification(AComponent: TComponent) Parameters: AComponent:

Events

OnDiscoveryException     (declared in TROCustomDiscoveryClient)
Fires if any exception was raised while probing for servers. If an event handler is assigned, exceptions will not be re-raised after the event handler has executed. property OnDiscoveryException: TRODiscoveryException read write delegate: procedure Invoke(aSender: TObject; aException: Exception)
OnNewServersFound     (declared in TROCustomDiscoveryClient)
property OnNewServersFound: TNotifyEvent read write
OnNewServiceFound     (declared in TROCustomDiscoveryClient)
Fires whenever the ServerList has been updated; whether new servers have been found or old servers have been removed. property OnNewServiceFound: TRODiscoveryNewServiceFoundEvent read write delegate: procedure Invoke(aSender: TObject; aName: string; aDiscoveryOptions: TRODiscoveryOptions)

See Also

• TRODiscoveryServer
• Service Discovery
• Lists
  • RemObjects SDK for Delphi:   Interfaces — Classes — Aliases — Implements
  • RemObjects SDK shared:   Data Types – File Types
  • other editions
    • RemObjects SDK for .NET:   Namespaces — Interfaces — Classes — Enums — Implements
    • RemObjects SDK for Xcode:   Protocols — Classes — Enums — Aliases — Implements
    • RemObjects SDK for Java:   Namespaces — Interfaces — Classes — Enums — Implements
    • RemObjects SDK for JavaScript:   Objects

Product: RemObjects SDK
Available Editions: RemObjects SDK for .NET, Xcode, Delphi, Java and JavaScript

Glossary — Articles — Library — Samples