The problem with sockets using Visual C++ windows form application
Darth-Cz-
I'm beginner in Visual C++ so I want to ask you a question. And I'm not good
in English:D
So I have the program which communicates over sockets. The program has to
connect to the server and send and receive data. But when I start the
program, there is one Socketexception - something like the program is unable
to connect to the server or the server didn't answer...
I apologize for my English... Thank you for advice...
I made this code:
private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^
e) {
try
{
Int32 port = 80;
TcpClient^ client = gcnew TcpClient( "www.centrum.cz",port );
// Translate the passed message into ASCII and store it as a Byte array.
array<Byte>^data = System::Text::Encoding::ASCII->GetBytes( "GET /
HTTP/1.1\n\n" );
// Get a client stream for reading and writing.
// Stream stream = client->GetStream();
NetworkStream^ stream = client->GetStream();
// Send the message to the connected TcpServer.
stream->Write( data, 0, data->Length );
String^ message;
MessageBox::Show( "Sent: {0}", message );
// Receive the TcpServer::response.
// Buffer to store the response bytes.
data = gcnew array<Byte>(256);
// String to store the response ASCII representation.
String^ responseData = String::Empty;
// Read the first batch of the TcpServer response bytes.
Int32 bytes = stream->Read( data, 0, data->Length );
responseData = System::Text::Encoding::ASCII->GetString( data, 0, bytes );
MessageBox::Show( "Received: {0}", responseData );
// Close everything.
client->Close();
}
catch ( ArgumentNullException^ e )
{
MessageBox::Show( e->ToString(),"ArgumentNullException: {0}" );
}
catch ( SocketException^ e )
{
MessageBox::Show( e->ToString(),"SocketException: {0}" );
}
}