bool CApp::Open()
{
// If not set yet, default title to application filename.
if (m_strTitle.Empty())
m_strTitle = CPath::Application().FileName().ToUpper();
const DWORD dwMinMajor = 4;
const DWORD dwMinMinor = 71;
DWORD dwMajor, dwMinor;
// Get COMCTL32.DLL version.
if (!m_oComCtl32.IsLoaded() || !m_oComCtl32.GetVersion(dwMajor, dwMinor))
{
FatalMsg(TXT("This application requires at least v%u.%u of COMCTL32.DLL."), dwMinMajor, dwMinMinor);
return false;
}
// Check COMCTL32.DLL version.
if ( (dwMajor < dwMinMajor) || ((dwMajor == dwMinMajor) && (dwMinor < dwMinMinor)) )
{
FatalMsg(TXT("This application requires at least v%u.%u of COMCTL32.DLL."), dwMinMajor, dwMinMinor);
return false;
}
DWORD dwICC = ICC_DATE_CLASSES | ICC_LISTVIEW_CLASSES | ICC_PROGRESS_CLASS | ICC_TAB_CLASSES;
// Initialise COMCTL32.DLL window classes.
if (!m_oComCtl32.Initialise(dwICC))
{
FatalMsg(TXT("Failed to initialise COMCTL32.DLL"));
return false;
}
// Call application method.
if (!OnOpen())
return false;
return true;
}
void CNetDDESvrApp::OnClosed(CSocket* pSocket, int /*nReason*/)
{
// NetDDE connection?
if (pSocket != &m_oSvrSocket)
{
CNetDDESvrSocket* pConnection = static_cast<CNetDDESvrSocket*>(pSocket);
if (App.m_bTraceNetConns)
App.Trace(TXT("SOCKET_STATUS: Connection closed from %s"), pConnection->Host());
}
// Listening socket.
else // (pSocket == &m_oSvrSocket)
{
FatalMsg(TXT("Server listening socket closed."));
m_AppWnd.Destroy();
}
// Cleanup later.
m_MainThread.PostMessage(WM_POLL_SOCKETS);
}
bool CNetDDESvrApp::OnOpen()
{
HWND hPrevWnd = NULL;
// Only allow a single instance.
if ((hPrevWnd = ::FindWindow(CAppWnd::WNDCLASS_NAME, NULL)) != NULL)
{
// If not visible OR minimised, restore it.
if (!::IsWindowVisible(hPrevWnd) || ::IsIconic(hPrevWnd))
{
::ShowWindow(hPrevWnd, SW_RESTORE);
::SetForegroundWindow(hPrevWnd);
}
return false;
}
// Set the app title.
m_strTitle = TXT("NetDDE Server");
// Load settings.
LoadConfig();
// Create the full trace file path.
m_strTracePath = CPath(CPath::ApplicationDir(), m_strTraceFile);
// Clear the trace file.
if (m_bTraceToFile)
{
try
{
m_fTraceFile.Create(m_strTracePath);
m_fTraceFile.Close();
}
catch (CFileException& e)
{
AlertMsg(TXT("Failed to truncate trace file:\n\n%s"), e.twhat());
m_bTraceToFile = false;
}
}
try
{
// Initialise WinSock.
int nResult = CWinSock::Startup(1, 1);
if (nResult != 0)
{
FatalMsg(TXT("Failed to initialise WinSock layer: %d."), nResult);
return false;
}
// Initialise the DDE client.
m_pDDEClient = DDE::ClientPtr(new CDDEClient);
m_pDDEClient->AddListener(this);
// Open the listening socket.
m_oSvrSocket.Listen(m_nServerPort);
// Attach event handler.
m_oSvrSocket.AddServerListener(this);
}
catch (Core::Exception& e)
{
FatalMsg(TXT("%s"), e.twhat());
return false;
}
// Create the main window.
if (!m_AppWnd.Create())
return false;
// Show it.
if (!m_rcLastPos.Empty())
m_AppWnd.Move(m_rcLastPos);
m_AppWnd.Show(m_iCmdShow);
// Update UI.
m_AppCmds.UpdateUI();
// Start the background timer.
m_nTimerID = StartTimer(BG_TIMER_FREQ);
App.Trace(TXT("SERVER_STATUS: Server started"));
App.Trace(TXT("SERVER_STATUS: Server listening on port: %d"), m_nServerPort);
return true;
}
