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Delphi ActiveX

Receive Bytes into a BinData

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveBd, which receives one delivery of binary data and appends it to a BinData. It returns whatever is immediately available.

Background. The BinData receive methods accumulate raw bytes in a BinData object. A single receive returns only what is currently available, whereas the counted receive waits for an exact number of bytes.

Chilkat Delphi ActiveX Downloads

Delphi ActiveX
var
success: Integer;
socket: TChilkatSocket;
bTls: Integer;
maxWaitMs: Integer;
bd: TChilkatBinData;

begin
success := 0;

socket := TChilkatSocket.Create(Self);

//  Connect to the server using TLS.
bTls := 1;
maxWaitMs := 5000;
success := socket.Connect('example.com',5000,bTls,maxWaitMs);
if (success = 0) then
  begin
    Memo1.Lines.Add(socket.LastErrorText);
    Exit;
  end;

//  Receive one delivery of binary data and append it to a BinData.  ReceiveBd returns whatever is
//  immediately available; it does not loop to drain everything that may follow.
bd := TChilkatBinData.Create(Self);
success := socket.ReceiveBd(bd.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(socket.LastErrorText);
    Exit;
  end;
Memo1.Lines.Add('Received ' + IntToStr(bd.NumBytes) + ' bytes.');