Demo3D 2026 API Documentation
Demo3D Namespaces
Demo3D.Net Namespaces
Demo3D.Net
ByteStreamProperties Class
CallbackContext Enumeration
CallbackContextEvent Class
CallbackContextEvent<T> Class
CallbackContextEvent<T1, T2> Class
Channel Class
ChannelInstance Class
Client<T> Class
Connection Class
Connection.IRegistry Interface
Flags Structure
FlagsExtensions Class
IByteStreamService Interface
IDataChangedNotifier Interface
IEmbeddedPacketIOService Interface
IIOStatsService Interface
IMessageNotifyService Interface
IMessageService Interface
IMessageStreamService Interface
INotifyDataChanged Interface
IPacketIOService Interface
IProtocolServerService Interface
IProtocolTimeoutService Interface
MessageEventArgs<MessageType> Class
MessageReceivedDelegate Delegate
MessageService Class
NotifyDataChanged Class
NotifyDataChanged.EventQueue Class
NotifyDataChangedEventArgs Class
NotifyDataChangedEventHandler Delegate
OpenFlags Enumeration
OpenParams Class
PacketChangedEventArgs Class
PacketChangedEventArgsExtensions Class
PacketIOService Class
Protocol Class
Protocol.IRegistry Interface
Protocol.RequiredService Class
ProtocolAddress Class
ProtocolAddressBuilder Class
ProtocolAddressEditor Class
ProtocolAddressEditorAttribute Class
ProtocolAddressPropertyBagEditor Class
ProtocolHead Class
ProtocolInstance Class
ProtocolProperties Class
ProtocolServer Class
ProtocolSocket Class
ProtocolSocket.OnRegisterClosingDelegate Delegate
ProtocolSocket.OnRegisterOpenDelegate Delegate
ServerClient<T> Class
ServerSocket Class
ServiceBindingAttribute Class
ServiceBindingFlags Enumeration
ServiceClientAsync<T> Delegate
ServiceConnectionAsync Delegate
ServiceNameAttribute Class
ServiceProvider Class
ServiceProvider.IRegistry Interface
ServiceProvider.RequiredService Class
SocketFlags Enumeration
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ProtocolSocketOnRegisterOpenDelegate Delegate

Delegate for RegisterOpen(ProtocolSocketOnRegisterOpenDelegate, Object).

Namespace: Demo3D.Net
Assembly: Demo3D.IO (in Demo3D.IO.dll) Version: 19.00.00
Syntax
C#
Copy
public delegate Task OnRegisterOpenDelegate(
	bool sync,
	ProtocolSocket socket,
	Flags openFlags,
	Object? registeredUserState,
	Object? callerUserState
)

Parameters

sync  Boolean
If true the Task returned is guaranteed to be complete.
socket  ProtocolSocket
The closing socket.
openFlags  Flags
The opening flags.
registeredUserState  Object
User state registered by RegisterOpen(ProtocolSocketOnRegisterOpenDelegate, Object).
callerUserState  Object
User state passed in to OpenAsync(Boolean, Flags, Object), etc.

Return Value

Task
See Also