//netchat代码
unit Chatmain;
interface
uses
Classes, QControls, QStdCtrls, QExtCtrls, QButtons, QForms, Sockets;
type
TForm1 = class(TForm)
memRecv: TMemo;
Panel1: TPanel;
memSend: TMemo;
Panel2: TPanel;
btnSend: TButton;
Panel3: TPanel;
Label1: TLabel;
edtRemoteHost: TEdit;
Label2: TLabel;
edtRemotePort: TEdit;
Label3: TLabel;
edtLocalPort: TEdit;
btnActivateServer: TButton;
TcpClient1: TTcpClient;
TcpServer1: TTcpServer;
procedure btnSendClick(Sender: TObject);
procedure TcpServer1Accept(sender: TObject;
ClientSocket: TCustomIpClient);
procedure btnActivateServerClick(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
private
{ Private declarations }
public
{ Public declarations }
end;
// you must create your own thread to synch
// writing to a gui component
TClientDataThread = class(TThread)
private
public
ListBuffer :TStringList;
TargetList :TStrings;
procedure synchAddDataToControl;
constructor Create(CreateSuspended: Boolean);
procedure Execute; override;
procedure Terminate;
end;
var
Form1: TForm1;
//DataThread: TClientDataThread;
implementation
{$R *.xfm}
//------------- TClientDataThread impl -----------------------------------------
constructor TClientDataThread.Create(CreateSuspended: Boolean);
begin
inherited Create(CreateSuspended);
FreeOnTerminate := true;
ListBuffer := TStringList.Create;
end;
procedure TClientDataThread.Terminate;
begin
ListBuffer.Free;
inherited;
end;
procedure TClientDataThread.Execute;
begin
Synchronize(synchAddDataToControl);
end;
procedure TClientDataThread.synchAddDataToControl;
begin
TargetList.AddStrings(ListBuffer);
end;
//------------- end TClientDataThread impl -------------------------------------
procedure TForm1.btnActivateServerClick(Sender: TObject);
begin
TcpServer1.LocalPort := edtLocalPort.Text;
TcpServer1.Active := True;
end;
procedure TForm1.btnSendClick(Sender: TObject);
var
I: Integer;
begin
TcpClient1.RemoteHost := edtRemoteHost.Text;
TcpClient1.RemotePort := edtRemotePort.Text;
try
if TcpClient1.Connect then
for I := 0 to memSend.Lines.Count - 1 do
TcpClient1.Sendln(memSend.Lines);
finally
TcpClient1.Disconnect;
end;
end;
procedure TForm1.TcpServer1Accept(sender: TObject;
ClientSocket: TCustomIpClient);
var
s: string;
DataThread: TClientDataThread;
begin
// create thread
DataThread:= TClientDataThread.Create(true);
// set the TagetList to the gui list that you
// with to synch with.
DataThread.TargetList := memRecv.lines;
// Load the Threads ListBuffer
DataThread.ListBuffer.Add('*** Connection Accepted ***');
DataThread.ListBuffer.Add('Remote Host: ' + ClientSocket.LookupHostName(ClientSocket.RemoteHost) +
' (' + ClientSocket.RemoteHost + ')');
DataThread.ListBuffer.Add('===== Begin message =====');
s := ClientSocket.Receiveln;
while s <> '' do
begin
DataThread.ListBuffer.Add(s);
s := ClientSocket.Receiveln;
end;
DataThread.ListBuffer.Add('===== End of message =====');
// Call Resume which will execute and synch the
// ListBuffer with the TargetList
DataThread.Resume;
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
TcpClient1.Disconnect;
end;
end.
