CDDEConnection *CDDEClient::MakeConnection(const CString& /* host */, const CString& server_name, const CString& topic)
{
HSZ serviceName = DdeCreateStringHandle(DDEIdInst, (const char *)server_name, CP_WINANSI);
HSZ topic_atom = DdeCreateStringHandle(DDEIdInst, (const char *)topic, CP_WINANSI);
HCONV hConv = DdeConnect(DDEIdInst, serviceName, topic_atom, (PCONVCONTEXT)NULL);
BOOL rt = DdeFreeStringHandle(DDEIdInst, serviceName);
rt = DdeFreeStringHandle(DDEIdInst, topic_atom);
if (hConv == NULL)
return NULL;
else
{
CDDEConnection *connection = OnMakeConnection();
if (connection)
{
connection->hConv = hConv;
connection->topic_name = topic;
connection->client = this;
connections.AddTail(connection);
// bDisconnected = true;
return connection;
}
else return NULL;
}
}
wxConnectionBase *wxTCPClient::MakeConnection (const wxString& host,
const wxString& serverName,
const wxString& topic)
{
wxSockAddress *addr = GetAddressFromName(serverName, host);
if ( !addr )
return NULL;
wxSocketClient *client = new wxSocketClient(SCKIPC_FLAGS);
wxSocketStream *stream = new wxSocketStream(*client);
wxDataInputStream *data_is = new wxDataInputStream(*stream);
wxDataOutputStream *data_os = new wxDataOutputStream(*stream);
bool ok = client->Connect(*addr);
delete addr;
if ( ok )
{
unsigned char msg;
// Send topic name, and enquire whether this has succeeded
data_os->Write8(IPC_CONNECT);
data_os->WriteString(topic);
msg = data_is->Read8();
// OK! Confirmation.
if (msg == IPC_CONNECT)
{
wxTCPConnection *connection = (wxTCPConnection *)OnMakeConnection ();
if (connection)
{
if (connection->IsKindOf(CLASSINFO(wxTCPConnection)))
{
connection->m_topic = topic;
connection->m_sock = client;
connection->m_sockstrm = stream;
connection->m_codeci = data_is;
connection->m_codeco = data_os;
client->SetEventHandler(*gs_handler, _CLIENT_ONREQUEST_ID);
client->SetClientData(connection);
client->SetNotify(wxSOCKET_INPUT_FLAG | wxSOCKET_LOST_FLAG);
client->Notify(true);
return connection;
}
else
{
delete connection;
// and fall through to delete everything else
}
}
}
}
// Something went wrong, delete everything
delete data_is;
delete data_os;
delete stream;
client->Destroy();
return NULL;
}