Added files for wxNotebook and wxCocoaNSTabView

[wxWidgets.git] / src / msw / dialup.cpp

diff --git a/src/msw/dialup.cpp b/src/msw/dialup.cpp
index b3ac982fcfe9aadb425cc5b0bef8af57a9b61c5c..3ef963a5f5ab6f04570dc341761fe0f3ad186d74 100644 (file)
--- a/src/msw/dialup.cpp
+++ b/src/msw/dialup.cpp
@@ -24,12 +24,6 @@
     #pragma hdrstop
 #endif
 
     #pragma hdrstop
 #endif
 

-// these functions require Win32
-#if defined(__WIN16__) && wxUSE_DIALUP_MANAGER
-    #undef wxUSE_DIALUP_MANAGER
-    #define wxUSE_DIALUP_MANAGER 0
-#endif // wxUSE_DIALUP_MANAGER && Win16
-

 #if wxUSE_DIALUP_MANAGER
 
 #ifndef WX_PRECOMP
 #if wxUSE_DIALUP_MANAGER
 
 #ifndef WX_PRECOMP


@@ -42,24 +36,19 @@
 #include "wx/app.h"
 #include "wx/generic/choicdgg.h"
 
 #include "wx/app.h"
 #include "wx/generic/choicdgg.h"
 

-#include "wx/msw/private.h"  // must be before #include "dynlib.h"
-
-#if wxUSE_DYNAMIC_LOADER || wxUSE_DYNLIB_CLASS

 #include "wx/dynlib.h"
 #include "wx/dynlib.h"

-#else
-#error You need wxUSE_DYNAMIC_LOADER to be 1 to compile dialup.cpp.
-#endif
-

 #include "wx/dialup.h"
 
 DEFINE_EVENT_TYPE(wxEVT_DIALUP_CONNECTED)
 DEFINE_EVENT_TYPE(wxEVT_DIALUP_DISCONNECTED)
 
 #include "wx/dialup.h"
 
 DEFINE_EVENT_TYPE(wxEVT_DIALUP_CONNECTED)
 DEFINE_EVENT_TYPE(wxEVT_DIALUP_DISCONNECTED)
 

-// Doesn't yet compile under VC++ 4, BC++, Watcom C++: no wininet.h
-#if !defined(__BORLANDC__) && \
+// Doesn't yet compile under VC++ 4, BC++, Watcom C++,
+// Wine: no wininet.h
+#if (!defined(__BORLANDC__) || (__BORLANDC__>=0x550)) && \

     (!defined(__GNUWIN32__) || wxCHECK_W32API_VERSION(0, 5)) && \
     !defined(__GNUWIN32_OLD__) && \
     !defined(__WATCOMC__) && \
     (!defined(__GNUWIN32__) || wxCHECK_W32API_VERSION(0, 5)) && \
     !defined(__GNUWIN32_OLD__) && \
     !defined(__WATCOMC__) && \

+    !defined(__WINE__) && \

     (!defined(__VISUALC__) || (__VISUALC__ >= 1020))
 
 #include <ras.h>
     (!defined(__VISUALC__) || (__VISUALC__ >= 1020))
 
 #include <ras.h>


@@ -144,13 +133,26 @@ struct WXDLLEXPORT wxRasThreadData
     wxRasThreadData()
     {
         hWnd = 0;
     wxRasThreadData()
     {
         hWnd = 0;

-        hEventRas = hEventQuit = INVALID_HANDLE_VALUE;
+        hEventRas =
+        hEventQuit = 0;

         dialUpManager = NULL;
     }
 
         dialUpManager = NULL;
     }
 

+    ~wxRasThreadData()
+    {
+        if ( hWnd )
+            DestroyWindow(hWnd);
+
+        if ( hEventQuit )
+            CloseHandle(hEventQuit);
+
+        if ( hEventRas )
+            CloseHandle(hEventRas);
+    }
+

     HWND    hWnd;       // window to send notifications to
     HWND    hWnd;       // window to send notifications to

-    HANDLE  hEventRas,  // event which RAS signals when status changes
-            hEventQuit; // event which we signal when we terminate
+    HANDLE  hEventRas,  // automatic event which RAS signals when status changes
+            hEventQuit; // manual event which we signal when we terminate

 
     class WXDLLEXPORT wxDialUpManagerMSW *dialUpManager;  // the owner
 };
 
     class WXDLLEXPORT wxDialUpManagerMSW *dialUpManager;  // the owner
 };


@@ -209,6 +211,10 @@ private:
     // destroy the thread data and the thread itself
     void CleanUpThreadData();
 
     // destroy the thread data and the thread itself
     void CleanUpThreadData();
 

+    // number of times EnableAutoCheckOnlineStatus() had been called minus the
+    // number of times DisableAutoCheckOnlineStatus() had been called
+    int m_autoCheckLevel;
+

     // timer used for polling RAS status
     class WXDLLEXPORT RasTimer : public wxTimer
     {
     // timer used for polling RAS status
     class WXDLLEXPORT RasTimer : public wxTimer
     {


@@ -220,6 +226,8 @@ private:
 
     private:
         wxDialUpManagerMSW *m_dialUpManager;
 
     private:
         wxDialUpManagerMSW *m_dialUpManager;

+
+        DECLARE_NO_COPY_CLASS(RasTimer)

     } m_timerStatusPolling;
 
     // thread handle for the thread sitting on connection change event
     } m_timerStatusPolling;
 
     // thread handle for the thread sitting on connection change event


@@ -227,7 +235,10 @@ private:
 
     // data used by this thread and our hidden window to send messages between
     // each other
 
     // data used by this thread and our hidden window to send messages between
     // each other

-    wxRasThreadData m_data;
+    wxRasThreadData *m_data;
+
+    // the handle of rasapi32.dll when it's loaded
+    wxDynamicLibrary m_dllRas;

 
     // the hidden window we use for passing messages between threads
     static HWND ms_hwndRas;
 
     // the hidden window we use for passing messages between threads
     static HWND ms_hwndRas;


@@ -235,12 +246,6 @@ private:
     // the handle of the connection we initiated or 0 if none
     static HRASCONN ms_hRasConnection;
 
     // the handle of the connection we initiated or 0 if none
     static HRASCONN ms_hRasConnection;
 

-    // the use count of rasapi32.dll
-    static int ms_nDllCount;
-
-    // the handle of rasapi32.dll when it's loaded
-    static wxDllType ms_dllRas;
-

     // the pointers to RAS functions
     static RASDIAL ms_pfnRasDial;
     static RASENUMCONNECTIONS ms_pfnRasEnumConnections;
     // the pointers to RAS functions
     static RASDIAL ms_pfnRasDial;
     static RASENUMCONNECTIONS ms_pfnRasEnumConnections;


@@ -270,12 +275,10 @@ private:
     // this flag tells us if we're online
     static int ms_isConnected;
 
     // this flag tells us if we're online
     static int ms_isConnected;
 

-    // this flag is the result of the call to IsAlwaysOnline() (-1 if not
-    // called yet)
-    static int ms_isAlwaysOnline;
-

     // this flag tells us whether a call to RasDial() is in progress
     static wxDialUpManagerMSW *ms_dialer;
     // this flag tells us whether a call to RasDial() is in progress
     static wxDialUpManagerMSW *ms_dialer;

+
+    DECLARE_NO_COPY_CLASS(wxDialUpManagerMSW)

 };
 
 // ----------------------------------------------------------------------------
 };
 
 // ----------------------------------------------------------------------------


@@ -303,9 +306,6 @@ HRASCONN wxDialUpManagerMSW::ms_hRasConnection = 0;
 
 HWND wxDialUpManagerMSW::ms_hwndRas = 0;
 
 
 HWND wxDialUpManagerMSW::ms_hwndRas = 0;
 

-int wxDialUpManagerMSW::ms_nDllCount = 0;
-wxDllType wxDialUpManagerMSW::ms_dllRas = 0;
-

 RASDIAL wxDialUpManagerMSW::ms_pfnRasDial = 0;
 RASENUMCONNECTIONS wxDialUpManagerMSW::ms_pfnRasEnumConnections = 0;
 RASENUMENTRIES wxDialUpManagerMSW::ms_pfnRasEnumEntries = 0;
 RASDIAL wxDialUpManagerMSW::ms_pfnRasDial = 0;
 RASENUMCONNECTIONS wxDialUpManagerMSW::ms_pfnRasEnumConnections = 0;
 RASENUMENTRIES wxDialUpManagerMSW::ms_pfnRasEnumEntries = 0;


@@ -328,7 +328,6 @@ RASCONNECTIONNOTIFICATION wxDialUpManagerMSW::ms_pfnRasConnectionNotification =
 
 int wxDialUpManagerMSW::ms_userSpecifiedOnlineStatus = -1;
 int wxDialUpManagerMSW::ms_isConnected = -1;
 
 int wxDialUpManagerMSW::ms_userSpecifiedOnlineStatus = -1;
 int wxDialUpManagerMSW::ms_isConnected = -1;

-int wxDialUpManagerMSW::ms_isAlwaysOnline = -1;

 wxDialUpManagerMSW *wxDialUpManagerMSW::ms_dialer = NULL;
 
 // ----------------------------------------------------------------------------
 wxDialUpManagerMSW *wxDialUpManagerMSW::ms_dialer = NULL;
 
 // ----------------------------------------------------------------------------


@@ -347,90 +346,83 @@ wxDialUpManager *wxDialUpManager::Create()
 #endif // VC++
 
 wxDialUpManagerMSW::wxDialUpManagerMSW()
 #endif // VC++
 
 wxDialUpManagerMSW::wxDialUpManagerMSW()

-                  : m_timerStatusPolling(this)
+                  : m_timerStatusPolling(this),
+                    m_dllRas(_T("RASAPI32"))

 {
     // initialize our data
 {
     // initialize our data

+    m_autoCheckLevel = 0;

     m_hThread = 0;
     m_hThread = 0;

+    m_data = new wxRasThreadData;

 
 

-    if ( !ms_nDllCount++ )
+    if ( !m_dllRas.IsLoaded() )

     {
     {

-        // load the RAS library
-        ms_dllRas = wxDllLoader::LoadLibrary(_T("RASAPI32"));
-        if ( !ms_dllRas )
+        wxLogError(_("Dial up functions are unavailable because the remote access service (RAS) is not installed on this machine. Please install it."));
+    }
+    else if ( !ms_pfnRasDial )
+    {
+        // resolve the functions we need
+
+        // this will contain the name of the function we failed to resolve
+        // if any at the end
+        const char *funcName = NULL;
+
+        // get the function from rasapi32.dll and abort if it's not found
+        #define RESOLVE_RAS_FUNCTION(type, name)                          \
+            ms_pfn##name = (type)m_dllRas.GetSymbol( wxString(_T(#name))  \
+                                                     + gs_funcSuffix);    \
+            if ( !ms_pfn##name )                                          \
+            {                                                             \
+                funcName = #name;                                         \
+                goto exit;                                                \
+            }
+
+        // a variant of above macro which doesn't abort if the function is
+        // not found in the DLL
+        #define RESOLVE_OPTIONAL_RAS_FUNCTION(type, name)                 \
+            ms_pfn##name = (type)m_dllRas.GetSymbol( wxString(_T(#name))  \
+                                                     + gs_funcSuffix);
+
+        RESOLVE_RAS_FUNCTION(RASDIAL, RasDial);
+        RESOLVE_RAS_FUNCTION(RASENUMCONNECTIONS, RasEnumConnections);
+        RESOLVE_RAS_FUNCTION(RASENUMENTRIES, RasEnumEntries);
+        RESOLVE_RAS_FUNCTION(RASGETCONNECTSTATUS, RasGetConnectStatus);
+        RESOLVE_RAS_FUNCTION(RASGETERRORSTRING, RasGetErrorString);
+        RESOLVE_RAS_FUNCTION(RASHANGUP, RasHangUp);
+        RESOLVE_RAS_FUNCTION(RASGETENTRYDIALPARAMS, RasGetEntryDialParams);
+
+        // suppress error messages about missing (non essential) functions

         {
         {

-            wxLogError(_("Dial up functions are unavailable because the remote access service (RAS) is not installed on this machine. Please install it."));
+            wxLogNull noLog;
+
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETPROJECTIONINFO, RasGetProjectionInfo);
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASCREATEPHONEBOOKENTRY, RasCreatePhonebookEntry);
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASEDITPHONEBOOKENTRY, RasEditPhonebookEntry);
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYDIALPARAMS, RasSetEntryDialParams);
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETENTRYPROPERTIES, RasGetEntryProperties);
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYPROPERTIES, RasSetEntryProperties);
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASRENAMEENTRY, RasRenameEntry);
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASDELETEENTRY, RasDeleteEntry);
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASVALIDATEENTRYNAME, RasValidateEntryName);
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETCOUNTRYINFO, RasGetCountryInfo);
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASENUMDEVICES, RasEnumDevices);
+            RESOLVE_OPTIONAL_RAS_FUNCTION(RASCONNECTIONNOTIFICATION, RasConnectionNotification);

         }
         }

-        else
-        {
-            // resolve the functions we need
-
-            // this will contain the name of the function we failed to resolve
-            // if any at the end
-            const char *funcName = NULL;
-
-            // get the function from rasapi32.dll and abort if it's not found
-            #define RESOLVE_RAS_FUNCTION(type, name)                    \
-                ms_pfn##name = (type)wxDllLoader::GetSymbol(ms_dllRas,  \
-                               wxString(_T(#name)) + gs_funcSuffix);    \
-                if ( !ms_pfn##name )                                    \
-                {                                                       \
-                    funcName = #name;                                   \
-                    goto exit;                                          \
-                }
-
-            // a variant of above macro which doesn't abort if the function is
-            // not found in the DLL
-            #define RESOLVE_OPTIONAL_RAS_FUNCTION(type, name)           \
-                ms_pfn##name = (type)wxDllLoader::GetSymbol(ms_dllRas,  \
-                               wxString(_T(#name)) + gs_funcSuffix);
-
-            RESOLVE_RAS_FUNCTION(RASDIAL, RasDial);
-            RESOLVE_RAS_FUNCTION(RASENUMCONNECTIONS, RasEnumConnections);
-            RESOLVE_RAS_FUNCTION(RASENUMENTRIES, RasEnumEntries);
-            RESOLVE_RAS_FUNCTION(RASGETCONNECTSTATUS, RasGetConnectStatus);
-            RESOLVE_RAS_FUNCTION(RASGETERRORSTRING, RasGetErrorString);
-            RESOLVE_RAS_FUNCTION(RASHANGUP, RasHangUp);
-            RESOLVE_RAS_FUNCTION(RASGETENTRYDIALPARAMS, RasGetEntryDialParams);
-
-            // suppress wxDllLoader messages about missing (non essential)
-            // functions
-            {
-                wxLogNull noLog;
-
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETPROJECTIONINFO, RasGetProjectionInfo);
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASCREATEPHONEBOOKENTRY, RasCreatePhonebookEntry);
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASEDITPHONEBOOKENTRY, RasEditPhonebookEntry);
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYDIALPARAMS, RasSetEntryDialParams);
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETENTRYPROPERTIES, RasGetEntryProperties);
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYPROPERTIES, RasSetEntryProperties);
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASRENAMEENTRY, RasRenameEntry);
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASDELETEENTRY, RasDeleteEntry);
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASVALIDATEENTRYNAME, RasValidateEntryName);
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETCOUNTRYINFO, RasGetCountryInfo);
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASENUMDEVICES, RasEnumDevices);
-                RESOLVE_OPTIONAL_RAS_FUNCTION(RASCONNECTIONNOTIFICATION, RasConnectionNotification);
-            }

 
 

-            // keep your preprocessor name space clean
-            #undef RESOLVE_RAS_FUNCTION
-            #undef RESOLVE_OPTIONAL_RAS_FUNCTION
+        // keep your preprocessor name space clean
+        #undef RESOLVE_RAS_FUNCTION
+        #undef RESOLVE_OPTIONAL_RAS_FUNCTION

 
 exit:
 
 exit:

-            if ( funcName )
-            {
-                static const wxChar *msg = wxTRANSLATE(
+        if ( funcName )
+        {
+            static const wxChar *msg = wxTRANSLATE(

 "The version of remote access service (RAS) installed on this machine is too\
 old, please upgrade (the following required function is missing: %s)."
 "The version of remote access service (RAS) installed on this machine is too\
 old, please upgrade (the following required function is missing: %s)."

-                                                       );
-
-                wxLogError(wxGetTranslation(msg), funcName);
-
-                wxDllLoader::UnloadLibrary(ms_dllRas);
-                ms_dllRas = 0;
-                ms_nDllCount = 0;
+                                                   );

 
 

-                return;
-            }
+            wxLogError(wxGetTranslation(msg), funcName);
+            m_dllRas.Unload();
+            return;

         }
     }
 
         }
     }
 


@@ -441,13 +433,6 @@ old, please upgrade (the following required function is missing: %s)."
 wxDialUpManagerMSW::~wxDialUpManagerMSW()
 {
     CleanUpThreadData();
 wxDialUpManagerMSW::~wxDialUpManagerMSW()
 {
     CleanUpThreadData();

-
-    if ( !--ms_nDllCount )
-    {
-        // unload the RAS library
-        wxDllLoader::UnloadLibrary(ms_dllRas);
-        ms_dllRas = 0;
-    }

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -560,35 +545,26 @@ void wxDialUpManagerMSW::CleanUpThreadData()
 {
     if ( m_hThread )
     {
 {
     if ( m_hThread )
     {

-        if ( !SetEvent(m_data.hEventQuit) )
+        if ( !SetEvent(m_data->hEventQuit) )

         {
             wxLogLastError(_T("SetEvent(RasThreadQuit)"));
         }
         {
             wxLogLastError(_T("SetEvent(RasThreadQuit)"));
         }

+        else // sent quit request to the background thread
+        {
+            // the thread still needs m_data so we can't free it here, rather
+            // let the thread do it itself
+            m_data = NULL;
+        }

 
         CloseHandle(m_hThread);
 
         m_hThread = 0;
     }
 
 
         CloseHandle(m_hThread);
 
         m_hThread = 0;
     }
 

-    if ( m_data.hWnd )
-    {
-        DestroyWindow(m_data.hWnd);
-
-        m_data.hWnd = 0;
-    }
-
-    if ( m_data.hEventQuit )
+    if ( m_data )

     {
     {

-        CloseHandle(m_data.hEventQuit);
-
-        m_data.hEventQuit = 0;
-    }
-
-    if ( m_data.hEventRas )
-    {
-        CloseHandle(m_data.hEventRas);
-
-        m_data.hEventRas = 0;
+        delete m_data;
+        m_data = NULL;

     }
 }
 
     }
 }
 


@@ -672,7 +648,7 @@ void wxDialUpManagerMSW::OnDialProgress(RASCONNSTATE rasconnstate,
 
 bool wxDialUpManagerMSW::IsOk() const
 {
 
 bool wxDialUpManagerMSW::IsOk() const
 {

-    return ms_dllRas != 0;
+    return m_dllRas.IsLoaded();

 }
 
 size_t wxDialUpManagerMSW::GetISPNames(wxArrayString& names) const
 }
 
 size_t wxDialUpManagerMSW::GetISPNames(wxArrayString& names) const


@@ -810,13 +786,13 @@ bool wxDialUpManagerMSW::Dial(const wxString& nameOfISP,
             return FALSE;
         }
     }
             return FALSE;
         }
     }

-       else
-       {
-               wxStrncpy(rasDialParams.szUserName, username, UNLEN);
-               wxStrncpy(rasDialParams.szPassword, password, PWLEN);
-       }
+    else
+    {
+        wxStrncpy(rasDialParams.szUserName, username, UNLEN);
+        wxStrncpy(rasDialParams.szPassword, password, PWLEN);
+    }

 
 

-       // default values for other fields
+    // default values for other fields

     rasDialParams.szPhoneNumber[0] = '\0';
     rasDialParams.szCallbackNumber[0] = '\0';
     rasDialParams.szCallbackNumber[0] = '\0';
     rasDialParams.szPhoneNumber[0] = '\0';
     rasDialParams.szCallbackNumber[0] = '\0';
     rasDialParams.szCallbackNumber[0] = '\0';


@@ -853,28 +829,21 @@ bool wxDialUpManagerMSW::Dial(const wxString& nameOfISP,
 
     DWORD dwRet = ms_pfnRasDial
                   (
 
     DWORD dwRet = ms_pfnRasDial
                   (

-                   (LPRASDIALEXTENSIONS)NULL,   // no extended features
-                   NULL,                  // default phone book file (NT only)
+                   NULL,                    // no extended features
+                   NULL,                    // default phone book file (NT only)

                    &rasDialParams,
                    &rasDialParams,

-                   0,                     // use callback for notifications
-                   async ? wxRasDialFunc  // the callback
-                         : 0,             // no notifications - sync operation
+                   0,                       // use callback for notifications
+                   async ? (void *)wxRasDialFunc  // cast needed for gcc 3.1
+                         : 0,               // no notifications, sync operation

                    &ms_hRasConnection
                   );
 
     if ( dwRet != 0 )
     {
                    &ms_hRasConnection
                   );
 
     if ( dwRet != 0 )
     {

-#if wxUSE_UNICODE
-        // can't pass a wxWCharBuffer through ( ... )
-        wxLogError(_("Failed to %s dialup connection: %s").data(),
-                   async ? _("initiate").data() : _("establish").data(),
-                   GetErrorString(dwRet).c_str());
-#else

         // can't pass a wxWCharBuffer through ( ... )
         wxLogError(_("Failed to %s dialup connection: %s"),
                    wxString(async ? _("initiate") : _("establish")).c_str(),
                    GetErrorString(dwRet).c_str());
         // can't pass a wxWCharBuffer through ( ... )
         wxLogError(_("Failed to %s dialup connection: %s"),
                    wxString(async ? _("initiate") : _("establish")).c_str(),
                    GetErrorString(dwRet).c_str());

-#endif

 
         // we should still call RasHangUp() if we got a non 0 connection
         if ( ms_hRasConnection )
 
         // we should still call RasHangUp() if we got a non 0 connection
         if ( ms_hRasConnection )


@@ -956,22 +925,23 @@ bool wxDialUpManagerMSW::HangUp()
 
 bool wxDialUpManagerMSW::IsAlwaysOnline() const
 {
 
 bool wxDialUpManagerMSW::IsAlwaysOnline() const
 {

-    // we cache the result (presumably this won't change while the program is
-    // running!)
-    if ( ms_isAlwaysOnline != -1 )
-    {
-        return ms_isAlwaysOnline != 0;
-    }
+    // assume no permanent connection by default
+    bool isAlwaysOnline = FALSE;
+
+    // try to use WinInet functions

 
 

-    // try to use WinInet function first
-    wxDllType hDll = wxDllLoader::LoadLibrary(_T("WININET"));
-    if ( hDll )
+    // NB: we could probably use wxDynamicLibrary here just as well,
+    //     but we allow multiple instances of wxDialUpManagerMSW so
+    //     we might as well use the ref counted version here too.
+
+    wxDynamicLibrary hDll(_T("WININET"));
+    if ( hDll.IsLoaded() )

     {
         typedef BOOL (WINAPI *INTERNETGETCONNECTEDSTATE)(LPDWORD, DWORD);
         INTERNETGETCONNECTEDSTATE pfnInternetGetConnectedState;
 
         #define RESOLVE_FUNCTION(type, name) \
     {
         typedef BOOL (WINAPI *INTERNETGETCONNECTEDSTATE)(LPDWORD, DWORD);
         INTERNETGETCONNECTEDSTATE pfnInternetGetConnectedState;
 
         #define RESOLVE_FUNCTION(type, name) \

-            pfn##name = (type)wxDllLoader::GetSymbol(hDll, _T(#name))
+            pfn##name = (type)hDll.GetSymbol(_T(#name))

 
         RESOLVE_FUNCTION(INTERNETGETCONNECTEDSTATE, InternetGetConnectedState);
 
 
         RESOLVE_FUNCTION(INTERNETGETCONNECTEDSTATE, InternetGetConnectedState);
 


@@ -981,47 +951,26 @@ bool wxDialUpManagerMSW::IsAlwaysOnline() const
             if ( pfnInternetGetConnectedState(&flags, 0 /* reserved */) )
             {
                 // there is some connection to the net, see of which type
             if ( pfnInternetGetConnectedState(&flags, 0 /* reserved */) )
             {
                 // there is some connection to the net, see of which type

-                ms_isAlwaysOnline = (flags & INTERNET_CONNECTION_LAN != 0) ||
-                                    (flags & INTERNET_CONNECTION_PROXY != 0);
-            }
-            else
-            {
-                // no Internet connection at all
-                ms_isAlwaysOnline = FALSE;
+                isAlwaysOnline = (flags & (INTERNET_CONNECTION_LAN |
+                                           INTERNET_CONNECTION_PROXY)) != 0;

             }
             }

+            //else: no Internet connection at all

         }
         }

-
-        wxDllLoader::UnloadLibrary(hDll);

     }
 
     }
 

-    // did we succeed with WinInet? if not, try something else
-    if ( ms_isAlwaysOnline == -1 )
-    {
-        if ( !IsOnline() )
-        {
-            // definitely no permanent connection because we are not connected
-            // now
-            ms_isAlwaysOnline = FALSE;
-        }
-        else
-        {
-            // of course, having a modem doesn't prevent us from having a
-            // permanent connection as well, but we have to guess somehow and
-            // it's probably more common that a system connected via a modem
-            // doesn't have any other net access, so:
-            ms_isAlwaysOnline = FALSE;
-        }
-    }
-
-    wxASSERT_MSG( ms_isAlwaysOnline != -1, wxT("logic error") );
-
-    return ms_isAlwaysOnline != 0;
+    return isAlwaysOnline;

 }
 
 bool wxDialUpManagerMSW::IsOnline() const
 {
     wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
 
 }
 
 bool wxDialUpManagerMSW::IsOnline() const
 {
     wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
 

+    if ( IsAlwaysOnline() )
+    {
+        // always => now
+        return true;
+    }
+

     if ( ms_userSpecifiedOnlineStatus != -1 )
     {
         // user specified flag overrides our logic
     if ( ms_userSpecifiedOnlineStatus != -1 )
     {
         // user specified flag overrides our logic


@@ -1045,6 +994,12 @@ bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
 {
     wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
 
 {
     wxCHECK_MSG( IsOk(), FALSE, wxT("using uninitialized wxDialUpManager") );
 

+    if ( m_autoCheckLevel++ )
+    {
+        // already checking
+        return TRUE;
+    }
+

     bool ok = ms_pfnRasConnectionNotification != 0;
 
     if ( ok )
     bool ok = ms_pfnRasConnectionNotification != 0;
 
     if ( ok )


@@ -1055,22 +1010,13 @@ bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
         // first, see if we don't have this thread already running
         if ( m_hThread != 0 )
         {
         // first, see if we don't have this thread already running
         if ( m_hThread != 0 )
         {

-            DWORD dwSuspendCount = 2;
-            while ( dwSuspendCount > 1 )
-            {
-                dwSuspendCount = ResumeThread(m_hThread);
-                if ( dwSuspendCount == (DWORD)-1 )
-                {
-                    wxLogLastError(wxT("ResumeThread(RasThread)"));
+            if ( ::ResumeThread(m_hThread) != (DWORD)-1 )
+                return TRUE;

 
 

-                    ok = FALSE;
-                }
-            }
+            // we're leaving a zombie thread... but what else can we do?
+            wxLogLastError(wxT("ResumeThread(RasThread)"));

 
 

-            if ( ok )
-            {
-                return TRUE;
-            }
+            ok = FALSE;

         }
     }
 
         }
     }
 


@@ -1080,14 +1026,14 @@ bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
     if ( ok )
     {
         // first create an event to wait on
     if ( ok )
     {
         // first create an event to wait on

-        m_data.hEventRas = CreateEvent
-                           (
+        m_data->hEventRas = CreateEvent
+                            (

                              NULL,      // security attribute (default)
                              NULL,      // security attribute (default)

-                             FALSE,     // manual reset (not)
+                             FALSE,     // manual reset (no, it is automatic)

                              FALSE,     // initial state (not signaled)
                              NULL       // name (no)
                              FALSE,     // initial state (not signaled)
                              NULL       // name (no)

-                           );
-        if ( !m_data.hEventRas )
+                            );
+        if ( !m_data->hEventRas )

         {
             wxLogLastError(wxT("CreateEvent(RasStatus)"));
 
         {
             wxLogLastError(wxT("CreateEvent(RasStatus)"));
 


@@ -1097,9 +1043,18 @@ bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
 
     if ( ok )
     {
 
     if ( ok )
     {

-        // create the event we use to quit the thread
-        m_data.hEventQuit = CreateEvent(NULL, FALSE, FALSE, NULL);
-        if ( !m_data.hEventQuit )
+        // create the event we use to quit the thread: using a manual event
+        // here avoids problems with missing the event if wxDialUpManagerMSW
+        // is created and destroyed immediately, before wxRasStatusWindowProc
+        // starts waiting on the event
+        m_data->hEventQuit = CreateEvent
+                             (
+                                NULL,   // default security
+                                TRUE,   // manual event
+                                FALSE,  // initially non signalled
+                                NULL    // nameless
+                             );
+        if ( !m_data->hEventQuit )

         {
             wxLogLastError(wxT("CreateEvent(RasThreadQuit)"));
 
         {
             wxLogLastError(wxT("CreateEvent(RasThreadQuit)"));
 


@@ -1113,8 +1068,8 @@ bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
     {
         // create a hidden window to receive notification about connections
         // status change
     {
         // create a hidden window to receive notification about connections
         // status change

-        extern const wxChar *wxPanelClassName;
-        ms_hwndRas = ::CreateWindow(wxPanelClassName, NULL,
+        extern const wxChar *wxCanvasClassName;
+        ms_hwndRas = ::CreateWindow(wxCanvasClassName, NULL,

                                     0, 0, 0, 0,
                                     0, NULL,
                                     (HMENU)NULL, wxGetInstance(), 0);
                                     0, 0, 0, 0,
                                     0, NULL,
                                     (HMENU)NULL, wxGetInstance(), 0);


@@ -1128,21 +1083,15 @@ bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
         }
 
         // and subclass it
         }
 
         // and subclass it

-        FARPROC windowProc = MakeProcInstance
-                             (
-                              (FARPROC)wxRasStatusWindowProc,
-                              wxGetInstance()
-                             );
-
-        ::SetWindowLong(ms_hwndRas, GWL_WNDPROC, (LONG) windowProc);
+        wxSetWindowProc(ms_hwndRas, wxRasStatusWindowProc);

     }
 
     }
 

-    m_data.hWnd = ms_hwndRas;
+    m_data->hWnd = ms_hwndRas;

 
     if ( ok )
     {
         // start the secondary thread
 
     if ( ok )
     {
         // start the secondary thread

-        m_data.dialUpManager = this;
+        m_data->dialUpManager = this;

 
         DWORD tid;
         m_hThread = CreateThread
 
         DWORD tid;
         m_hThread = CreateThread


@@ -1150,7 +1099,7 @@ bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
                      NULL,
                      0,
                      (LPTHREAD_START_ROUTINE)wxRasMonitorThread,
                      NULL,
                      0,
                      (LPTHREAD_START_ROUTINE)wxRasMonitorThread,

-                     (void *)&m_data,
+                     (void *)m_data,

                      0,
                      &tid
                     );
                      0,
                      &tid
                     );


@@ -1169,7 +1118,7 @@ bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
         DWORD dwRet = ms_pfnRasConnectionNotification
                       (
                         (HRASCONN)INVALID_HANDLE_VALUE,
         DWORD dwRet = ms_pfnRasConnectionNotification
                       (
                         (HRASCONN)INVALID_HANDLE_VALUE,

-                        m_data.hEventRas,
+                        m_data->hEventRas,

                         3 /* RASCN_Connection | RASCN_Disconnection */
                       );
 
                         3 /* RASCN_Connection | RASCN_Disconnection */
                       );
 


@@ -1203,6 +1152,12 @@ void wxDialUpManagerMSW::DisableAutoCheckOnlineStatus()
 {
     wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
 
 {
     wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
 

+    if ( --m_autoCheckLevel )
+    {
+        // still checking
+        return;
+    }
+

     if ( m_hThread )
     {
         // we have running secondary thread, it's just enough to suspend it
     if ( m_hThread )
     {
         // we have running secondary thread, it's just enough to suspend it


@@ -1265,34 +1220,64 @@ static DWORD wxRasMonitorThread(wxRasThreadData *data)
                 cont = FALSE;
                 break;
 
                 cont = FALSE;
                 break;
 

+            default:
+                wxFAIL_MSG( _T("unexpected return of WaitForMultipleObjects()") );
+                // fall through
+

             case WAIT_FAILED:
             case WAIT_FAILED:

-                wxLogLastError(wxT("WaitForMultipleObjects(RasMonitor)"));
-                break;
+#ifdef __WXDEBUG__
+                // using wxLogLastError() from here is dangerous: we risk to
+                // deadlock the main thread if wxLog sends output to GUI
+                DWORD err = GetLastError();
+                wxMessageOutputDebug().Printf
+                (
+                    wxT("WaitForMultipleObjects(RasMonitor) failed: 0x%08lx (%s)"),
+                    err,
+                    wxSysErrorMsg(err)
+                );
+#endif // __WXDEBUG__
+
+                // no sense in continuing, who knows if the handles we're
+                // waiting for even exist yet...
+                return (DWORD)-1;

         }
     }
 
         }
     }
 

+    // we don't need it any more now and if this thread ran, it is our
+    // responsability to free the data
+    delete data;
+

     return 0;
 }
 
 static LRESULT APIENTRY wxRasStatusWindowProc(HWND hWnd, UINT message,
                                               WPARAM wParam, LPARAM lParam)
 {
     return 0;
 }
 
 static LRESULT APIENTRY wxRasStatusWindowProc(HWND hWnd, UINT message,
                                               WPARAM wParam, LPARAM lParam)
 {

-    if ( message == wxWM_RAS_STATUS_CHANGED )
-    {
-        wxRasThreadData *data = (wxRasThreadData *)lParam;
-        data->dialUpManager->OnConnectStatusChange();
-    }
-    else if ( message == wxWM_RAS_DIALING_PROGRESS )
+    switch ( message )

     {
     {

-        wxDialUpManagerMSW *dialUpManager = wxDialUpManagerMSW::GetDialer();
+        case wxWM_RAS_STATUS_CHANGED:
+            {
+                wxRasThreadData *data = (wxRasThreadData *)lParam;
+                data->dialUpManager->OnConnectStatusChange();
+            }
+            break;
+
+        case wxWM_RAS_DIALING_PROGRESS:
+            {
+                wxDialUpManagerMSW *dialMan = wxDialUpManagerMSW::GetDialer();
+
+                dialMan->OnDialProgress((RASCONNSTATE)wParam, lParam);
+            }
+            break;

 
 

-        dialUpManager->OnDialProgress((RASCONNSTATE)wParam, lParam);
+        default:
+            return ::DefWindowProc(hWnd, message, wParam, lParam);

     }
 
     return 0;
 }
 
     }
 
     return 0;
 }
 

-static void WINAPI wxRasDialFunc(UINT unMsg,
+static void WINAPI wxRasDialFunc(UINT WXUNUSED(unMsg),

                                  RASCONNSTATE rasconnstate,
                                  DWORD dwError)
 {
                                  RASCONNSTATE rasconnstate,
                                  DWORD dwError)
 {


@@ -1304,6 +1289,7 @@ static void WINAPI wxRasDialFunc(UINT unMsg,
                 rasconnstate, dwError);
 }
 
                 rasconnstate, dwError);
 }
 

-#endif
-  // __BORLANDC__
+#endif // __BORLANDC__
+

 #endif // wxUSE_DIALUP_MANAGER
 #endif // wxUSE_DIALUP_MANAGER

+