<DescriptionAttribute("Send data from your buffer asynchronously. The EndSend event is raised when completed.")>
Public Overloads Function BeginSend( _
   ByVal buffer() As Byte _
) As IAsyncResult

Dim instance As Tcp
Dim buffer() As Byte
Dim value As IAsyncResult
 
value = instance.BeginSend(buffer)

[DescriptionAttribute("Send data from your buffer asynchronously. The EndSend event is raised when completed.")]
public IAsyncResult BeginSend( 
   byte[] buffer
)

[DescriptionAttribute("Send data from your buffer asynchronously. The EndSend event is raised when completed.")]
public: IAsyncResult* BeginSend( 
   byte[]* buffer
) 

[DescriptionAttribute("Send data from your buffer asynchronously. The EndSend event is raised when completed.")]
public:
IAsyncResult^ BeginSend( 
   array<byte>^ buffer
) 

Private Sub AsynchTcpDemo()

   ' Attempt to connect to an echo port.
   Try
      Tcp1.Connect("myserver", 7)
   Catch ex As Exception
      Return
   End Try

   ' Send data, since we are connected to an echo port, the same data should be returned.
   ' The following code demonstrates asynchronously sending data. When data has been sent
   ' the EndSend event will be raised.

   Dim buffer() As Byte = System.Text.Encoding.Default.GetBytes("a")
   Tcp1.BeginSend(buffer, 0, buffer.Length, Net.Sockets.SocketFlags.None, Nothing)
End Sub

Private Sub Tcp1_EndSend(ByVal sender As Object, ByVal e As Dart.PowerTCP.SegmentEventArgs) Handles Tcp1.EndSend
   ' Check for exception
   If e.Exception Is Nothing Then

      ' Send is complete. Display info about the data sent.
      Debug.WriteLine("Byte count sent: " + e.Segment.Count)
      Debug.WriteLine("Data sent: " + e.Segment.ToString())
      
      Dim buffer(Tcp1.ReceiveBufferSize) As Byte

      ' Receive the data. The EndReceive event will be raised upon completion.
      Tcp1.BeginReceive(buffer, 0, buffer.Length, Net.Sockets.SocketFlags.None, Nothing)
    
    End If
End Sub

Private Sub Tcp1_EndReceive(ByVal sender As Object, ByVal e As Dart.PowerTCP.SegmentEventArgs) Handles Tcp1.EndReceive
   ' Check for exception
   If e.Exception Is Nothing Then

      ' Receive is complete. Display info about the data sent.
      Debug.WriteLine("Byte count received: " + e.Segment.Count)
      Debug.WriteLine("Data received: " + e.Segment.ToString())

      ' Close the connection
      Tcp1.Close()
    End If
End Sub

private void AsynchTcpDemo()
{
    // Attempt to connect to an echo port.
    try
    {
        tcp1.Connect("myserver", 7);
    }
    catch(Exception ex)
    {return;}

    // Send data, since we are connected to an echo port, the same data should be returned.
    // The following code demonstrates asynchronously sending data. When data has been sent
    // the EndSend event will be raised.

    byte[] buffer = System.Text.Encoding.Default.GetBytes("a");
    tcp1.BeginSend(buffer, 0, buffer.Length, System.Net.Sockets.SocketFlags.None, null);
}

private void tcp1_EndSend(object sender, Dart.PowerTCP.SegmentEventArgs e)
{
    // Check for exception
    if(e.Exception == null)
    {
        // Send is complete. Display info about the data sent.
        Debug.WriteLine("Byte count sent: " + e.Segment.Count);
        Debug.WriteLine("Data sent: " + e.Segment.ToString());
                

        byte[] buffer = new byte[tcp1.ReceiveBufferSize];
                    
        // Receive the data. The EndReceive event will be raised upon completion.
        tcp1.BeginReceive(buffer, 0, buffer.Length, System.Net.Sockets.SocketFlags.None, null);
    }
}

private void tcp1_EndReceive(object sender, Dart.PowerTCP.SegmentEventArgs e)
{
    // Check for exception
    if(e.Exception == null)
    {
        // Receive is complete. Display info about the data sent.
        Debug.WriteLine("Byte count received: " + e.Segment.Count);
        Debug.WriteLine("Data received: " + e.Segment.ToString());

        // Close the connection
        tcp1.Close();
    }
}