TwclClientDataConnection Class
The base class for the client connection that requires data exchange with a remote device.
wclConnections.TwclCustomConnection
wclConnections.TwclClientConnection
wclConnections.TwclClientDataConnection
type TwclClientDataConnection = class(TwclClientConnection) end;
The TwclClientDataConnection type exposes the following members.
| Name | Description | |
|---|---|---|
 | Create | Creates a new client data connection. (Overrides TwclClientConnection.Create.) |
| Name | Description | |
|---|---|---|
 | Processor | Gets the current Data Processor object assigned to the Connection. |
| Receiver | Gets the connection message receiver object. (Inherited from TwclCustomConnection.) |
| State | Gets the connection state. (Inherited from TwclClientConnection.) |
| ThreadId | Gets the connection's thread ID. (Inherited from TwclCustomConnection.) |
| Timeout | Gets the connect timeout value. (Inherited from TwclClientConnection.) |
| Name | Description | |
|---|---|---|
| Connect(Cardinal) | Connects to a remote device. (Inherited from TwclClientConnection.) |
| Disconnect | Disconnects from the connected remote device. (Inherited from TwclClientConnection.) |
 | DoConnect(Integer) | Fires the |
| DoData(Pointer,Cardinal) | Fires the |
| DoDisconnect(Integer) | Fires the |
| Enter | Enters the connection's critical section. (Inherited from TwclCustomConnection.) |
| GetReadBufferSize(Cardinal) | Reads the read buffer size. |
| GetWriteBufferSize(Cardinal) | Reads the write buffer size. |
| HalCommunicate(THandle) | Implements a hardware-dependent code that communicate with the connected remote device. (Inherited from TwclClientConnection.) |
| HalConnect(THandle) | Implements a hardware-dependent code that connects to a remote device. (Inherited from TwclClientConnection.) |
| HalDisconnect | Implements a hardware-dependent code that disconnects from the connected remote device. (Inherited from TwclClientConnection.) |
| HalGetReadBufferSize(Cardinal) | Reads the read buffer size. |
| HalGetWriteBufferSize(Cardinal) | Reads the write buffer size. |
| HalSetReadBufferSize(Cardinal) | Sets the read buffer size. |
| HalSetWriteBufferSize(Cardinal) | Sets the write buffer size. |
| HalWrite(Pointer,Cardinal,Cardinal) | Implements a hardware-dependent code that sends data to the connected device. |
| InternalDisconnect(Integer) | The internal disconnect method. Disconnects from a connected remote device. (Inherited from TwclClientConnection.) |
| Leave | Exists *leaves) the connection's critical section. (Inherited from TwclCustomConnection.) |
| MessageReceived(TwclMessage) | The message receiver calls this method when a new notification message has been received. (Overrides TwclClientConnection.MessageReceived(TwclMessage).) |
| NotifyClosed(Integer) | Send a Disconnect notification message. (Inherited from TwclClientConnection.) |
| NotifyDataReceived(Pointer,Cardinal) | Send a data notification message. |
| SetReadBufferSize(Cardinal) | Sets the read buffer size. |
| SetWriteBufferSize(Cardinal) | Sets the write buffer size. |
| Write(Pointer,Cardinal,Cardinal) | Sends data to the connected device. |
| Name | Description | |
|---|---|---|
 | OnConnect | The event fires when a connection to a remote device has been completed (with or without success). (Inherited from TwclClientConnection.) |
| OnData | The event fires when new data is received from the connected remote device. |
| OnDisconnect | The event fires when the remote connected device has been disconnected. (Inherited from TwclClientConnection.) |