Question

TcpServer and Client

Asked by: Putri

Got the following line in client window (C++ Builder 6.0) :

TcpClient1->Sendln(Memo2->Text);

And in server on accept I 've got the following line:

s=ClientSocket->Receiveln();
Memo1->Lines->Add(s);
And that works fine but when i try to send some more text from Client to server, nothing happens. What to do?
Thanks

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Asked On
2009-11-22 at 01:58:34ID24921260
Tags

C++ Builder

Topics

C Programming Language

,

C++ Programming Language

Participating Experts
2
Points
250
Comments
7

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Answers

 

by: BrianGEFF719Posted on 2009-11-22 at 12:56:01ID: 25883601

you might try:

while(s=ClientSocket->Receiveln())
 Memo1->Lines->Add(s);

 

by: PutriPosted on 2009-11-22 at 13:14:15ID: 25883694

Nope.

 

by: vhpgomesPosted on 2009-11-23 at 05:06:32ID: 25887172

Care to show us some more code? Would be easier to help.

 

by: PutriPosted on 2009-11-23 at 05:15:07ID: 25887225

Client is already connected and working
Button1 on client form:

TcpClient1->Sendln(Memo2->Text);

On servers page:

void __fastcall TForm1::TcpServer1Accept(TObject *Sender,
      TCustomIpClient *ClientSocket)
{
String s;
Memo1->Lines->Add("Connected");
s=ClientSocket->Receiveln()
 Memo1->Lines->Add(s);
}

It just sends the first line and displays in memo on server window.
After that, nothing happens.

 

by: vhpgomesPosted on 2009-11-23 at 05:33:46ID: 25887321

The Sendln method only sends one line, so you only receives one. Try changing it to SendBuf, to send the entire buffer.

And then you'll probably need to do what BrianGEFF719 suggested.

 

by: PutriPosted on 2009-11-23 at 05:39:32ID: 25887372

Can someone please give me a working example on how to send the entire memo1->text from client to server using TcpClient1->SendBuf ?
Thanks.

 

by: vhpgomesPosted on 2009-11-23 at 06:34:35ID: 25887777

What is Memo2 ? If Memo2->Text returns a AnsiString as I suspect, then one of  the following should work:


TcpClient1->SendBuf(Memo2->Text,Memo2->Text.Length(),0);
 
// or the one bellow... not sure ;)
 
TcpClient1->SendBuf(Memo2->Text.c_str(),Memo2->Text.Length(),0);
                                              
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