src/msw/dialup.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/dialup.cpp
   3 // Purpose:     MSW implementation of network/dialup classes and functions
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     07.07.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vadim Zeitlin
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_DIALUP_MANAGER
  28
  29 #include "wx/dialup.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/log.h"
  33     #include "wx/intl.h"
  34     #include "wx/event.h"
  35     #include "wx/app.h"
  36     #include "wx/timer.h"
  37     #include "wx/module.h"
  38 #endif
  39
  40 #include "wx/generic/choicdgg.h"
  41
  42 #include "wx/dynlib.h"
  43
  44 DEFINE_EVENT_TYPE(wxEVT_DIALUP_CONNECTED)
  45 DEFINE_EVENT_TYPE(wxEVT_DIALUP_DISCONNECTED)
  46
  47 // Doesn't yet compile under VC++ 4, BC++, Watcom C++,
  48 // Wine: no wininet.h
  49 #if (!defined(__BORLANDC__) || (__BORLANDC__>=0x550)) && \
  50     (!defined(__GNUWIN32__) || wxCHECK_W32API_VERSION(0, 5)) && \
  51     !defined(__GNUWIN32_OLD__) && \
  52     !defined(__WINE__) && \
  53     (!defined(__VISUALC__) || (__VISUALC__ >= 1020))
  54
  55 #include <ras.h>
  56 #include <raserror.h>
  57
  58 #include <wininet.h>
  59
  60 // Not in VC++ 5
  61 #ifndef INTERNET_CONNECTION_LAN
  62 #define INTERNET_CONNECTION_LAN 2
  63 #endif
  64 #ifndef INTERNET_CONNECTION_PROXY
  65 #define INTERNET_CONNECTION_PROXY 4
  66 #endif
  67
  68 // implemented in utils.cpp
  69 extern "C" WXDLLIMPEXP_BASE HWND
  70 wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc);
  71
  72 static const wxChar *
  73     wxMSWDIALUP_WNDCLASSNAME = wxT("_wxDialUpManager_Internal_Class");
  74 static const wxChar *gs_classForDialUpWindow = NULL;
  75
  76 // ----------------------------------------------------------------------------
  77 // constants
  78 // ----------------------------------------------------------------------------
  79
  80 // this message is sent by the secondary thread when RAS status changes
  81 #define wxWM_RAS_STATUS_CHANGED (WM_USER + 10010)
  82 #define wxWM_RAS_DIALING_PROGRESS (WM_USER + 10011)
  83
  84 // ----------------------------------------------------------------------------
  85 // types
  86 // ----------------------------------------------------------------------------
  87
  88 // the signatures of RAS functions: all this is quite heavy, but we must do it
  89 // to allow running wxWin programs on machine which don't have RAS installed
  90 // (this does exist) - if we link with rasapi32.lib, the program will fail on
  91 // startup because of the missing DLL...
  92
  93 #ifndef UNICODE
  94     typedef DWORD (APIENTRY * RASDIAL)( LPRASDIALEXTENSIONS, LPCSTR, LPRASDIALPARAMSA, DWORD, LPVOID, LPHRASCONN );
  95     typedef DWORD (APIENTRY * RASENUMCONNECTIONS)( LPRASCONNA, LPDWORD, LPDWORD );
  96     typedef DWORD (APIENTRY * RASENUMENTRIES)( LPCSTR, LPCSTR, LPRASENTRYNAMEA, LPDWORD, LPDWORD );
  97     typedef DWORD (APIENTRY * RASGETCONNECTSTATUS)( HRASCONN, LPRASCONNSTATUSA );
  98     typedef DWORD (APIENTRY * RASGETERRORSTRING)( UINT, LPSTR, DWORD );
  99     typedef DWORD (APIENTRY * RASHANGUP)( HRASCONN );
 100     typedef DWORD (APIENTRY * RASGETPROJECTIONINFO)( HRASCONN, RASPROJECTION, LPVOID, LPDWORD );
 101     typedef DWORD (APIENTRY * RASCREATEPHONEBOOKENTRY)( HWND, LPCSTR );
 102     typedef DWORD (APIENTRY * RASEDITPHONEBOOKENTRY)( HWND, LPCSTR, LPCSTR );
 103     typedef DWORD (APIENTRY * RASSETENTRYDIALPARAMS)( LPCSTR, LPRASDIALPARAMSA, BOOL );
 104     typedef DWORD (APIENTRY * RASGETENTRYDIALPARAMS)( LPCSTR, LPRASDIALPARAMSA, LPBOOL );
 105     typedef DWORD (APIENTRY * RASENUMDEVICES)( LPRASDEVINFOA, LPDWORD, LPDWORD );
 106     typedef DWORD (APIENTRY * RASGETCOUNTRYINFO)( LPRASCTRYINFOA, LPDWORD );
 107     typedef DWORD (APIENTRY * RASGETENTRYPROPERTIES)( LPCSTR, LPCSTR, LPRASENTRYA, LPDWORD, LPBYTE, LPDWORD );
 108     typedef DWORD (APIENTRY * RASSETENTRYPROPERTIES)( LPCSTR, LPCSTR, LPRASENTRYA, DWORD, LPBYTE, DWORD );
 109     typedef DWORD (APIENTRY * RASRENAMEENTRY)( LPCSTR, LPCSTR, LPCSTR );
 110     typedef DWORD (APIENTRY * RASDELETEENTRY)( LPCSTR, LPCSTR );
 111     typedef DWORD (APIENTRY * RASVALIDATEENTRYNAME)( LPCSTR, LPCSTR );
 112     typedef DWORD (APIENTRY * RASCONNECTIONNOTIFICATION)( HRASCONN, HANDLE, DWORD );
 113
 114     static const wxChar gs_funcSuffix = _T('A');
 115 #else // Unicode
 116     typedef DWORD (APIENTRY * RASDIAL)( LPRASDIALEXTENSIONS, LPCWSTR, LPRASDIALPARAMSW, DWORD, LPVOID, LPHRASCONN );
 117     typedef DWORD (APIENTRY * RASENUMCONNECTIONS)( LPRASCONNW, LPDWORD, LPDWORD );
 118     typedef DWORD (APIENTRY * RASENUMENTRIES)( LPCWSTR, LPCWSTR, LPRASENTRYNAMEW, LPDWORD, LPDWORD );
 119     typedef DWORD (APIENTRY * RASGETCONNECTSTATUS)( HRASCONN, LPRASCONNSTATUSW );
 120     typedef DWORD (APIENTRY * RASGETERRORSTRING)( UINT, LPWSTR, DWORD );
 121     typedef DWORD (APIENTRY * RASHANGUP)( HRASCONN );
 122     typedef DWORD (APIENTRY * RASGETPROJECTIONINFO)( HRASCONN, RASPROJECTION, LPVOID, LPDWORD );
 123     typedef DWORD (APIENTRY * RASCREATEPHONEBOOKENTRY)( HWND, LPCWSTR );
 124     typedef DWORD (APIENTRY * RASEDITPHONEBOOKENTRY)( HWND, LPCWSTR, LPCWSTR );
 125     typedef DWORD (APIENTRY * RASSETENTRYDIALPARAMS)( LPCWSTR, LPRASDIALPARAMSW, BOOL );
 126     typedef DWORD (APIENTRY * RASGETENTRYDIALPARAMS)( LPCWSTR, LPRASDIALPARAMSW, LPBOOL );
 127     typedef DWORD (APIENTRY * RASENUMDEVICES)( LPRASDEVINFOW, LPDWORD, LPDWORD );
 128     typedef DWORD (APIENTRY * RASGETCOUNTRYINFO)( LPRASCTRYINFOW, LPDWORD );
 129     typedef DWORD (APIENTRY * RASGETENTRYPROPERTIES)( LPCWSTR, LPCWSTR, LPRASENTRYW, LPDWORD, LPBYTE, LPDWORD );
 130     typedef DWORD (APIENTRY * RASSETENTRYPROPERTIES)( LPCWSTR, LPCWSTR, LPRASENTRYW, DWORD, LPBYTE, DWORD );
 131     typedef DWORD (APIENTRY * RASRENAMEENTRY)( LPCWSTR, LPCWSTR, LPCWSTR );
 132     typedef DWORD (APIENTRY * RASDELETEENTRY)( LPCWSTR, LPCWSTR );
 133     typedef DWORD (APIENTRY * RASVALIDATEENTRYNAME)( LPCWSTR, LPCWSTR );
 134     typedef DWORD (APIENTRY * RASCONNECTIONNOTIFICATION)( HRASCONN, HANDLE, DWORD );
 135
 136     static const wxChar gs_funcSuffix = _T('W');
 137 #endif // ASCII/Unicode
 138
 139 // structure passed to the secondary thread
 140 struct WXDLLEXPORT wxRasThreadData
 141 {
 142     wxRasThreadData()
 143     {
 144         hWnd = 0;
 145         hEventRas =
 146         hEventQuit = 0;
 147         dialUpManager = NULL;
 148     }
 149
 150     ~wxRasThreadData()
 151     {
 152         if ( hWnd )
 153             DestroyWindow(hWnd);
 154
 155         if ( hEventQuit )
 156             CloseHandle(hEventQuit);
 157
 158         if ( hEventRas )
 159             CloseHandle(hEventRas);
 160     }
 161
 162     HWND    hWnd;       // window to send notifications to
 163     HANDLE  hEventRas,  // automatic event which RAS signals when status changes
 164             hEventQuit; // manual event which we signal when we terminate
 165
 166     class WXDLLEXPORT wxDialUpManagerMSW *dialUpManager;  // the owner
 167 };
 168
 169 // ----------------------------------------------------------------------------
 170 // wxDialUpManager class for MSW
 171 // ----------------------------------------------------------------------------
 172
 173 class WXDLLEXPORT wxDialUpManagerMSW : public wxDialUpManager
 174 {
 175 public:
 176     // ctor & dtor
 177     wxDialUpManagerMSW();
 178     virtual ~wxDialUpManagerMSW();
 179
 180     // implement base class pure virtuals
 181     virtual bool IsOk() const;
 182     virtual size_t GetISPNames(wxArrayString& names) const;
 183     virtual bool Dial(const wxString& nameOfISP,
 184                       const wxString& username,
 185                       const wxString& password,
 186                       bool async);
 187     virtual bool IsDialing() const;
 188     virtual bool CancelDialing();
 189     virtual bool HangUp();
 190     virtual bool IsAlwaysOnline() const;
 191     virtual bool IsOnline() const;
 192     virtual void SetOnlineStatus(bool isOnline = true);
 193     virtual bool EnableAutoCheckOnlineStatus(size_t nSeconds);
 194     virtual void DisableAutoCheckOnlineStatus();
 195     virtual void SetWellKnownHost(const wxString& hostname, int port);
 196     virtual void SetConnectCommand(const wxString& commandDial,
 197                                    const wxString& commandHangup);
 198
 199     // for RasTimer
 200     void CheckRasStatus();
 201
 202     // for wxRasStatusWindowProc
 203     void OnConnectStatusChange();
 204     void OnDialProgress(RASCONNSTATE rasconnstate, DWORD dwError);
 205
 206     // for wxRasDialFunc
 207     static HWND GetRasWindow() { return ms_hwndRas; }
 208     static void ResetRasWindow() { ms_hwndRas = NULL; }
 209     static wxDialUpManagerMSW *GetDialer() { return ms_dialer; }
 210
 211 private:
 212     // return the error string for the given RAS error code
 213     static wxString GetErrorString(DWORD error);
 214
 215     // find the (first) handle of the active connection
 216     static HRASCONN FindActiveConnection();
 217
 218     // notify the application about status change
 219     void NotifyApp(bool connected, bool fromOurselves = false) const;
 220
 221     // destroy the thread data and the thread itself
 222     void CleanUpThreadData();
 223
 224     // number of times EnableAutoCheckOnlineStatus() had been called minus the
 225     // number of times DisableAutoCheckOnlineStatus() had been called
 226     int m_autoCheckLevel;
 227
 228     // timer used for polling RAS status
 229     class WXDLLEXPORT RasTimer : public wxTimer
 230     {
 231     public:
 232         RasTimer(wxDialUpManagerMSW *dialUpManager)
 233             { m_dialUpManager = dialUpManager; }
 234
 235         virtual void Notify() { m_dialUpManager->CheckRasStatus(); }
 236
 237     private:
 238         wxDialUpManagerMSW *m_dialUpManager;
 239
 240         DECLARE_NO_COPY_CLASS(RasTimer)
 241     } m_timerStatusPolling;
 242
 243     // thread handle for the thread sitting on connection change event
 244     HANDLE m_hThread;
 245
 246     // data used by this thread and our hidden window to send messages between
 247     // each other
 248     wxRasThreadData *m_data;
 249
 250     // the handle of rasapi32.dll when it's loaded
 251     wxDynamicLibrary m_dllRas;
 252
 253     // the hidden window we use for passing messages between threads
 254     static HWND ms_hwndRas;
 255
 256     // the handle of the connection we initiated or 0 if none
 257     static HRASCONN ms_hRasConnection;
 258
 259     // the pointers to RAS functions
 260     static RASDIAL ms_pfnRasDial;
 261     static RASENUMCONNECTIONS ms_pfnRasEnumConnections;
 262     static RASENUMENTRIES ms_pfnRasEnumEntries;
 263     static RASGETCONNECTSTATUS ms_pfnRasGetConnectStatus;
 264     static RASGETERRORSTRING ms_pfnRasGetErrorString;
 265     static RASHANGUP ms_pfnRasHangUp;
 266     static RASGETPROJECTIONINFO ms_pfnRasGetProjectionInfo;
 267     static RASCREATEPHONEBOOKENTRY ms_pfnRasCreatePhonebookEntry;
 268     static RASEDITPHONEBOOKENTRY ms_pfnRasEditPhonebookEntry;
 269     static RASSETENTRYDIALPARAMS ms_pfnRasSetEntryDialParams;
 270     static RASGETENTRYDIALPARAMS ms_pfnRasGetEntryDialParams;
 271     static RASENUMDEVICES ms_pfnRasEnumDevices;
 272     static RASGETCOUNTRYINFO ms_pfnRasGetCountryInfo;
 273     static RASGETENTRYPROPERTIES ms_pfnRasGetEntryProperties;
 274     static RASSETENTRYPROPERTIES ms_pfnRasSetEntryProperties;
 275     static RASRENAMEENTRY ms_pfnRasRenameEntry;
 276     static RASDELETEENTRY ms_pfnRasDeleteEntry;
 277     static RASVALIDATEENTRYNAME ms_pfnRasValidateEntryName;
 278
 279     // this function is not supported by Win95
 280     static RASCONNECTIONNOTIFICATION ms_pfnRasConnectionNotification;
 281
 282     // if this flag is different from -1, it overrides IsOnline()
 283     static int ms_userSpecifiedOnlineStatus;
 284
 285     // this flag tells us if we're online
 286     static int ms_isConnected;
 287
 288     // this flag tells us whether a call to RasDial() is in progress
 289     static wxDialUpManagerMSW *ms_dialer;
 290
 291     DECLARE_NO_COPY_CLASS(wxDialUpManagerMSW)
 292 };
 293
 294 // module to destroy helper window created by wxDialUpManagerMSW
 295 class wxDialUpManagerModule : public wxModule
 296 {
 297 public:
 298     bool OnInit() { return true; }
 299     void OnExit()
 300     {
 301         HWND hwnd = wxDialUpManagerMSW::GetRasWindow();
 302         if ( hwnd )
 303         {
 304             ::DestroyWindow(hwnd);
 305             wxDialUpManagerMSW::ResetRasWindow();
 306         }
 307
 308         if ( gs_classForDialUpWindow )
 309         {
 310             ::UnregisterClass(wxMSWDIALUP_WNDCLASSNAME, wxGetInstance());
 311             gs_classForDialUpWindow = NULL;
 312         }
 313     }
 314
 315 private:
 316     DECLARE_DYNAMIC_CLASS(wxDialUpManagerModule)
 317 };
 318
 319 IMPLEMENT_DYNAMIC_CLASS(wxDialUpManagerModule, wxModule)
 320
 321 // ----------------------------------------------------------------------------
 322 // private functions
 323 // ----------------------------------------------------------------------------
 324
 325 static LRESULT WINAPI wxRasStatusWindowProc(HWND hWnd, UINT message,
 326                                             WPARAM wParam, LPARAM lParam);
 327
 328 static DWORD wxRasMonitorThread(wxRasThreadData *data);
 329
 330 static void WINAPI wxRasDialFunc(UINT unMsg,
 331                                  RASCONNSTATE rasconnstate,
 332                                  DWORD dwError);
 333
 334 // ============================================================================
 335 // implementation
 336 // ============================================================================
 337
 338 // ----------------------------------------------------------------------------
 339 // init the static variables
 340 // ----------------------------------------------------------------------------
 341
 342 HRASCONN wxDialUpManagerMSW::ms_hRasConnection = 0;
 343
 344 HWND wxDialUpManagerMSW::ms_hwndRas = 0;
 345
 346 RASDIAL wxDialUpManagerMSW::ms_pfnRasDial = 0;
 347 RASENUMCONNECTIONS wxDialUpManagerMSW::ms_pfnRasEnumConnections = 0;
 348 RASENUMENTRIES wxDialUpManagerMSW::ms_pfnRasEnumEntries = 0;
 349 RASGETCONNECTSTATUS wxDialUpManagerMSW::ms_pfnRasGetConnectStatus = 0;
 350 RASGETERRORSTRING wxDialUpManagerMSW::ms_pfnRasGetErrorString = 0;
 351 RASHANGUP wxDialUpManagerMSW::ms_pfnRasHangUp = 0;
 352 RASGETPROJECTIONINFO wxDialUpManagerMSW::ms_pfnRasGetProjectionInfo = 0;
 353 RASCREATEPHONEBOOKENTRY wxDialUpManagerMSW::ms_pfnRasCreatePhonebookEntry = 0;
 354 RASEDITPHONEBOOKENTRY wxDialUpManagerMSW::ms_pfnRasEditPhonebookEntry = 0;
 355 RASSETENTRYDIALPARAMS wxDialUpManagerMSW::ms_pfnRasSetEntryDialParams = 0;
 356 RASGETENTRYDIALPARAMS wxDialUpManagerMSW::ms_pfnRasGetEntryDialParams = 0;
 357 RASENUMDEVICES wxDialUpManagerMSW::ms_pfnRasEnumDevices = 0;
 358 RASGETCOUNTRYINFO wxDialUpManagerMSW::ms_pfnRasGetCountryInfo = 0;
 359 RASGETENTRYPROPERTIES wxDialUpManagerMSW::ms_pfnRasGetEntryProperties = 0;
 360 RASSETENTRYPROPERTIES wxDialUpManagerMSW::ms_pfnRasSetEntryProperties = 0;
 361 RASRENAMEENTRY wxDialUpManagerMSW::ms_pfnRasRenameEntry = 0;
 362 RASDELETEENTRY wxDialUpManagerMSW::ms_pfnRasDeleteEntry = 0;
 363 RASVALIDATEENTRYNAME wxDialUpManagerMSW::ms_pfnRasValidateEntryName = 0;
 364 RASCONNECTIONNOTIFICATION wxDialUpManagerMSW::ms_pfnRasConnectionNotification = 0;
 365
 366 int wxDialUpManagerMSW::ms_userSpecifiedOnlineStatus = -1;
 367 int wxDialUpManagerMSW::ms_isConnected = -1;
 368 wxDialUpManagerMSW *wxDialUpManagerMSW::ms_dialer = NULL;
 369
 370 // ----------------------------------------------------------------------------
 371 // ctor and dtor: the dynamic linking happens here
 372 // ----------------------------------------------------------------------------
 373
 374 // the static creator function is implemented here
 375 wxDialUpManager *wxDialUpManager::Create()
 376 {
 377     return new wxDialUpManagerMSW;
 378 }
 379
 380 #ifdef __VISUALC__
 381     // warning about "'this' : used in base member initializer list" - so what?
 382     #pragma warning(disable:4355)
 383 #endif // VC++
 384
 385 wxDialUpManagerMSW::wxDialUpManagerMSW()
 386                   : m_timerStatusPolling(this),
 387                     m_dllRas(_T("RASAPI32"))
 388 {
 389     // initialize our data
 390     m_autoCheckLevel = 0;
 391     m_hThread = 0;
 392     m_data = new wxRasThreadData;
 393
 394     if ( !m_dllRas.IsLoaded() )
 395     {
 396         wxLogError(_("Dial up functions are unavailable because the remote access service (RAS) is not installed on this machine. Please install it."));
 397     }
 398     else if ( !ms_pfnRasDial )
 399     {
 400         // resolve the functions we need
 401
 402         // this will contain the name of the function we failed to resolve
 403         // if any at the end
 404         const char *funcName = NULL;
 405
 406         // get the function from rasapi32.dll and abort if it's not found
 407         #define RESOLVE_RAS_FUNCTION(type, name)                          \
 408             ms_pfn##name = (type)m_dllRas.GetSymbol( wxString(_T(#name))  \
 409                                                      + gs_funcSuffix);    \
 410             if ( !ms_pfn##name )                                          \
 411             {                                                             \
 412                 funcName = #name;                                         \
 413                 goto exit;                                                \
 414             }
 415
 416         // a variant of above macro which doesn't abort if the function is
 417         // not found in the DLL
 418         #define RESOLVE_OPTIONAL_RAS_FUNCTION(type, name)                 \
 419             ms_pfn##name = (type)m_dllRas.GetSymbol( wxString(_T(#name))  \
 420                                                      + gs_funcSuffix);
 421
 422         RESOLVE_RAS_FUNCTION(RASDIAL, RasDial);
 423         RESOLVE_RAS_FUNCTION(RASENUMCONNECTIONS, RasEnumConnections);
 424         RESOLVE_RAS_FUNCTION(RASENUMENTRIES, RasEnumEntries);
 425         RESOLVE_RAS_FUNCTION(RASGETCONNECTSTATUS, RasGetConnectStatus);
 426         RESOLVE_RAS_FUNCTION(RASGETERRORSTRING, RasGetErrorString);
 427         RESOLVE_RAS_FUNCTION(RASHANGUP, RasHangUp);
 428         RESOLVE_RAS_FUNCTION(RASGETENTRYDIALPARAMS, RasGetEntryDialParams);
 429
 430         // suppress error messages about missing (non essential) functions
 431         {
 432             wxLogNull noLog;
 433
 434             RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETPROJECTIONINFO, RasGetProjectionInfo);
 435             RESOLVE_OPTIONAL_RAS_FUNCTION(RASCREATEPHONEBOOKENTRY, RasCreatePhonebookEntry);
 436             RESOLVE_OPTIONAL_RAS_FUNCTION(RASEDITPHONEBOOKENTRY, RasEditPhonebookEntry);
 437             RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYDIALPARAMS, RasSetEntryDialParams);
 438             RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETENTRYPROPERTIES, RasGetEntryProperties);
 439             RESOLVE_OPTIONAL_RAS_FUNCTION(RASSETENTRYPROPERTIES, RasSetEntryProperties);
 440             RESOLVE_OPTIONAL_RAS_FUNCTION(RASRENAMEENTRY, RasRenameEntry);
 441             RESOLVE_OPTIONAL_RAS_FUNCTION(RASDELETEENTRY, RasDeleteEntry);
 442             RESOLVE_OPTIONAL_RAS_FUNCTION(RASVALIDATEENTRYNAME, RasValidateEntryName);
 443             RESOLVE_OPTIONAL_RAS_FUNCTION(RASGETCOUNTRYINFO, RasGetCountryInfo);
 444             RESOLVE_OPTIONAL_RAS_FUNCTION(RASENUMDEVICES, RasEnumDevices);
 445             RESOLVE_OPTIONAL_RAS_FUNCTION(RASCONNECTIONNOTIFICATION, RasConnectionNotification);
 446         }
 447
 448         // keep your preprocessor name space clean
 449         #undef RESOLVE_RAS_FUNCTION
 450         #undef RESOLVE_OPTIONAL_RAS_FUNCTION
 451
 452 exit:
 453         if ( funcName )
 454         {
 455             wxLogError(_("The version of remote access service (RAS) installed "
 456                           "on this machine is too old, please upgrade (the "
 457                           "following required function is missing: %s)."),
 458                        funcName);
 459             m_dllRas.Unload();
 460             return;
 461         }
 462     }
 463
 464     // enable auto check by default
 465     EnableAutoCheckOnlineStatus(0);
 466 }
 467
 468 wxDialUpManagerMSW::~wxDialUpManagerMSW()
 469 {
 470     CleanUpThreadData();
 471 }
 472
 473 // ----------------------------------------------------------------------------
 474 // helper functions
 475 // ----------------------------------------------------------------------------
 476
 477 wxString wxDialUpManagerMSW::GetErrorString(DWORD error)
 478 {
 479     wxChar buffer[512]; // this should be more than enough according to MS docs
 480     DWORD dwRet = ms_pfnRasGetErrorString(error, buffer, WXSIZEOF(buffer));
 481     switch ( dwRet )
 482     {
 483         case ERROR_INVALID_PARAMETER:
 484             // this was a standard Win32 error probably
 485             return wxString(wxSysErrorMsg(error));
 486
 487         default:
 488             {
 489                 wxLogSysError(dwRet,
 490                       _("Failed to retrieve text of RAS error message"));
 491
 492                 wxString msg;
 493                 msg.Printf(_("unknown error (error code %08x)."), error);
 494                 return msg;
 495             }
 496
 497         case 0:
 498             // we want the error message to start from a lower case letter
 499             buffer[0] = (wxChar)wxTolower(buffer[0]);
 500
 501             return wxString(buffer);
 502     }
 503 }
 504
 505 HRASCONN wxDialUpManagerMSW::FindActiveConnection()
 506 {
 507     // enumerate connections
 508     DWORD cbBuf = sizeof(RASCONN);
 509     LPRASCONN lpRasConn = (LPRASCONN)malloc(cbBuf);
 510     if ( !lpRasConn )
 511     {
 512         // out of memory
 513         return 0;
 514     }
 515
 516     lpRasConn->dwSize = sizeof(RASCONN);
 517
 518     DWORD nConnections = 0;
 519     DWORD dwRet = ERROR_BUFFER_TOO_SMALL;
 520
 521     while ( dwRet == ERROR_BUFFER_TOO_SMALL )
 522     {
 523         dwRet = ms_pfnRasEnumConnections(lpRasConn, &cbBuf, &nConnections);
 524
 525         if ( dwRet == ERROR_BUFFER_TOO_SMALL )
 526         {
 527             LPRASCONN lpRasConnOld = lpRasConn;
 528             lpRasConn = (LPRASCONN)realloc(lpRasConn, cbBuf);
 529             if ( !lpRasConn )
 530             {
 531                 // out of memory
 532                 free(lpRasConnOld);
 533
 534                 return 0;
 535             }
 536         }
 537         else if ( dwRet == 0 )
 538         {
 539             // ok, success
 540             break;
 541         }
 542         else
 543         {
 544             // an error occurred
 545             wxLogError(_("Cannot find active dialup connection: %s"),
 546                        GetErrorString(dwRet).c_str());
 547             return 0;
 548         }
 549     }
 550
 551     HRASCONN hrasconn;
 552
 553     switch ( nConnections )
 554     {
 555         case 0:
 556             // no connections
 557             hrasconn = 0;
 558             break;
 559
 560         default:
 561             // more than 1 connection - we don't know what to do with this
 562             // case, so give a warning but continue (taking the first
 563             // connection) - the warning is really needed because this function
 564             // is used, for example, to select the connection to hang up and so
 565             // we may hang up the wrong connection here...
 566             wxLogWarning(_("Several active dialup connections found, choosing one randomly."));
 567             // fall through
 568
 569         case 1:
 570             // exactly 1 connection, great
 571             hrasconn = lpRasConn->hrasconn;
 572     }
 573
 574     free(lpRasConn);
 575
 576     return hrasconn;
 577 }
 578
 579 void wxDialUpManagerMSW::CleanUpThreadData()
 580 {
 581     if ( m_hThread )
 582     {
 583         if ( !SetEvent(m_data->hEventQuit) )
 584         {
 585             wxLogLastError(_T("SetEvent(RasThreadQuit)"));
 586         }
 587         else // sent quit request to the background thread
 588         {
 589             // the thread still needs m_data so we can't free it here, rather
 590             // let the thread do it itself
 591             m_data = NULL;
 592         }
 593
 594         CloseHandle(m_hThread);
 595
 596         m_hThread = 0;
 597     }
 598
 599     if ( m_data )
 600     {
 601         delete m_data;
 602         m_data = NULL;
 603     }
 604 }
 605
 606 // ----------------------------------------------------------------------------
 607 // connection status
 608 // ----------------------------------------------------------------------------
 609
 610 void wxDialUpManagerMSW::CheckRasStatus()
 611 {
 612     // use int, not bool to compare with -1
 613     int isConnected = FindActiveConnection() != 0;
 614     if ( isConnected != ms_isConnected )
 615     {
 616         if ( ms_isConnected != -1 )
 617         {
 618             // notify the program
 619             NotifyApp(isConnected != 0);
 620         }
 621         // else: it's the first time we're called, just update the flag
 622
 623         ms_isConnected = isConnected;
 624     }
 625 }
 626
 627 void wxDialUpManagerMSW::NotifyApp(bool connected, bool fromOurselves) const
 628 {
 629     wxDialUpEvent event(connected, fromOurselves);
 630     (void)wxTheApp->ProcessEvent(event);
 631 }
 632
 633 // this function is called whenever the status of any RAS connection on this
 634 // machine changes by RAS itself
 635 void wxDialUpManagerMSW::OnConnectStatusChange()
 636 {
 637     // we know that status changed, but we don't know whether we're connected
 638     // or not - so find it out
 639     CheckRasStatus();
 640 }
 641
 642 // this function is called by our callback which we give to RasDial() when
 643 // calling it asynchronously
 644 void wxDialUpManagerMSW::OnDialProgress(RASCONNSTATE rasconnstate,
 645                                         DWORD dwError)
 646 {
 647     if ( !GetDialer() )
 648     {
 649         // this probably means that CancelDialing() was called and we get
 650         // "disconnected" notification
 651         return;
 652     }
 653
 654     // we're only interested in 2 events: connected and disconnected
 655     if ( dwError )
 656     {
 657         wxLogError(_("Failed to establish dialup connection: %s"),
 658                    GetErrorString(dwError).c_str());
 659
 660         // we should still call RasHangUp() if we got a non 0 connection
 661         if ( ms_hRasConnection )
 662         {
 663             ms_pfnRasHangUp(ms_hRasConnection);
 664             ms_hRasConnection = 0;
 665         }
 666
 667         ms_dialer = NULL;
 668
 669         NotifyApp(false /* !connected */, true /* we dialed ourselves */);
 670     }
 671     else if ( rasconnstate == RASCS_Connected )
 672     {
 673         ms_isConnected = true;
 674         ms_dialer = NULL;
 675
 676         NotifyApp(true /* connected */, true /* we dialed ourselves */);
 677     }
 678 }
 679
 680 // ----------------------------------------------------------------------------
 681 // implementation of wxDialUpManager functions
 682 // ----------------------------------------------------------------------------
 683
 684 bool wxDialUpManagerMSW::IsOk() const
 685 {
 686     return m_dllRas.IsLoaded();
 687 }
 688
 689 size_t wxDialUpManagerMSW::GetISPNames(wxArrayString& names) const
 690 {
 691     // fetch the entries
 692     DWORD size = sizeof(RASENTRYNAME);
 693     RASENTRYNAME *rasEntries = (RASENTRYNAME *)malloc(size);
 694     rasEntries->dwSize = sizeof(RASENTRYNAME);
 695
 696     DWORD nEntries;
 697     DWORD dwRet;
 698     do
 699     {
 700         dwRet = ms_pfnRasEnumEntries
 701                   (
 702                    NULL,                // reserved
 703                    NULL,                // default phone book (or all)
 704                    rasEntries,          // [out] buffer for the entries
 705                    &size,               // [in/out] size of the buffer
 706                    &nEntries            // [out] number of entries fetched
 707                   );
 708
 709         if ( dwRet == ERROR_BUFFER_TOO_SMALL )
 710         {
 711             // reallocate the buffer
 712             rasEntries = (RASENTRYNAME *)realloc(rasEntries, size);
 713         }
 714         else if ( dwRet != 0 )
 715         {
 716             // some other error - abort
 717             wxLogError(_("Failed to get ISP names: %s"),
 718                        GetErrorString(dwRet).c_str());
 719
 720             free(rasEntries);
 721
 722             return 0u;
 723         }
 724     }
 725     while ( dwRet != 0 );
 726
 727     // process them
 728     names.Empty();
 729     for ( size_t n = 0; n < (size_t)nEntries; n++ )
 730     {
 731         names.Add(rasEntries[n].szEntryName);
 732     }
 733
 734     free(rasEntries);
 735
 736     // return the number of entries
 737     return names.GetCount();
 738 }
 739
 740 bool wxDialUpManagerMSW::Dial(const wxString& nameOfISP,
 741                               const wxString& username,
 742                               const wxString& password,
 743                               bool async)
 744 {
 745     // check preconditions
 746     wxCHECK_MSG( IsOk(), false, wxT("using uninitialized wxDialUpManager") );
 747
 748     if ( ms_hRasConnection )
 749     {
 750         wxFAIL_MSG(wxT("there is already an active connection"));
 751
 752         return true;
 753     }
 754
 755     // get the default ISP if none given
 756     wxString entryName(nameOfISP);
 757     if ( !entryName )
 758     {
 759         wxArrayString names;
 760         size_t count = GetISPNames(names);
 761         switch ( count )
 762         {
 763             case 0:
 764                 // no known ISPs, abort
 765                 wxLogError(_("Failed to connect: no ISP to dial."));
 766
 767                 return false;
 768
 769             case 1:
 770                 // only one ISP, choose it
 771                 entryName = names[0u];
 772                 break;
 773
 774             default:
 775                 // several ISPs, let the user choose
 776                 {
 777                     wxString *strings = new wxString[count];
 778                     for ( size_t i = 0; i < count; i++ )
 779                     {
 780                         strings[i] = names[i];
 781                     }
 782
 783                     entryName = wxGetSingleChoice
 784                                 (
 785                                  _("Choose ISP to dial"),
 786                                  _("Please choose which ISP do you want to connect to"),
 787                                  count,
 788                                  strings
 789                                 );
 790
 791                     delete [] strings;
 792
 793                     if ( !entryName )
 794                     {
 795                         // cancelled by user
 796                         return false;
 797                     }
 798                 }
 799         }
 800     }
 801
 802     RASDIALPARAMS rasDialParams;
 803     rasDialParams.dwSize = sizeof(rasDialParams);
 804     wxStrncpy(rasDialParams.szEntryName, entryName, RAS_MaxEntryName);
 805
 806     // do we have the username and password?
 807     if ( !username || !password )
 808     {
 809         BOOL gotPassword;
 810         DWORD dwRet = ms_pfnRasGetEntryDialParams
 811                       (
 812                        NULL,            // default phonebook
 813                        &rasDialParams,  // [in/out] the params of this entry
 814                        &gotPassword     // [out] did we get password?
 815                       );
 816
 817         if ( dwRet != 0 )
 818         {
 819             wxLogError(_("Failed to connect: missing username/password."));
 820
 821             return false;
 822         }
 823     }
 824     else
 825     {
 826         wxStrncpy(rasDialParams.szUserName, username, UNLEN);
 827         wxStrncpy(rasDialParams.szPassword, password, PWLEN);
 828     }
 829
 830     // default values for other fields
 831     rasDialParams.szPhoneNumber[0] = '\0';
 832     rasDialParams.szCallbackNumber[0] = '\0';
 833     rasDialParams.szCallbackNumber[0] = '\0';
 834
 835     rasDialParams.szDomain[0] = '*';
 836     rasDialParams.szDomain[1] = '\0';
 837
 838     // apparently, this is not really necessary - passing NULL instead of the
 839     // phone book has the same effect
 840 #if 0
 841     wxString phoneBook;
 842     if ( wxGetOsVersion() == wxWINDOWS_NT )
 843     {
 844         // first get the length
 845         UINT nLen = ::GetSystemDirectory(NULL, 0);
 846         nLen++;
 847
 848         if ( !::GetSystemDirectory(phoneBook.GetWriteBuf(nLen), nLen) )
 849         {
 850             wxLogSysError(_("Cannot find the location of address book file"));
 851         }
 852
 853         phoneBook.UngetWriteBuf();
 854
 855         // this is the default phone book
 856         phoneBook << "\\ras\\rasphone.pbk";
 857     }
 858 #endif // 0
 859
 860     // TODO may be we should disable auto check while async dialing is in
 861     //      progress?
 862
 863     ms_dialer = this;
 864
 865     DWORD dwRet = ms_pfnRasDial
 866                   (
 867                    NULL,                    // no extended features
 868                    NULL,                    // default phone book file (NT only)
 869                    &rasDialParams,
 870                    0,                       // use callback for notifications
 871                    async ? (void *)wxRasDialFunc  // cast needed for gcc 3.1
 872                          : 0,               // no notifications, sync operation
 873                    &ms_hRasConnection
 874                   );
 875
 876     if ( dwRet != 0 )
 877     {
 878         // can't pass a wxWCharBuffer through ( ... )
 879         if ( async )
 880             wxLogError(_("Failed to initiate dialup connection: %s"),
 881                        GetErrorString(dwRet).c_str());
 882         else
 883             wxLogError(_("Failed to establish dialup connection: %s"),
 884                        GetErrorString(dwRet).c_str());
 885
 886         // we should still call RasHangUp() if we got a non 0 connection
 887         if ( ms_hRasConnection )
 888         {
 889             ms_pfnRasHangUp(ms_hRasConnection);
 890             ms_hRasConnection = 0;
 891         }
 892
 893         ms_dialer = NULL;
 894
 895         return false;
 896     }
 897
 898     // for async dialing, we're not yet connected
 899     if ( !async )
 900     {
 901         ms_isConnected = true;
 902     }
 903
 904     return true;
 905 }
 906
 907 bool wxDialUpManagerMSW::IsDialing() const
 908 {
 909     return GetDialer() != NULL;
 910 }
 911
 912 bool wxDialUpManagerMSW::CancelDialing()
 913 {
 914     if ( !GetDialer() )
 915     {
 916         // silently ignore
 917         return false;
 918     }
 919
 920     wxASSERT_MSG( ms_hRasConnection, wxT("dialing but no connection?") );
 921
 922     ms_dialer = NULL;
 923
 924     return HangUp();
 925 }
 926
 927 bool wxDialUpManagerMSW::HangUp()
 928 {
 929     wxCHECK_MSG( IsOk(), false, wxT("using uninitialized wxDialUpManager") );
 930
 931     // we may terminate either the connection we initiated or another one which
 932     // is active now
 933     HRASCONN hRasConn;
 934     if ( ms_hRasConnection )
 935     {
 936         hRasConn = ms_hRasConnection;
 937
 938         ms_hRasConnection = 0;
 939     }
 940     else
 941     {
 942         hRasConn = FindActiveConnection();
 943     }
 944
 945     if ( !hRasConn )
 946     {
 947         wxLogError(_("Cannot hang up - no active dialup connection."));
 948
 949         return false;
 950     }
 951
 952     // note that it's not an error if the connection had been already
 953     // terminated
 954     const DWORD dwRet = ms_pfnRasHangUp(hRasConn);
 955     if ( dwRet != 0 && dwRet != ERROR_NO_CONNECTION )
 956     {
 957         wxLogError(_("Failed to terminate the dialup connection: %s"),
 958                    GetErrorString(dwRet).c_str());
 959     }
 960
 961     ms_isConnected = false;
 962
 963     return true;
 964 }
 965
 966 bool wxDialUpManagerMSW::IsAlwaysOnline() const
 967 {
 968     // assume no permanent connection by default
 969     bool isAlwaysOnline = false;
 970
 971     // try to use WinInet functions
 972
 973     // NB: we could probably use wxDynamicLibrary here just as well,
 974     //     but we allow multiple instances of wxDialUpManagerMSW so
 975     //     we might as well use the ref counted version here too.
 976
 977     wxDynamicLibrary hDll(_T("WININET"));
 978     if ( hDll.IsLoaded() )
 979     {
 980         typedef BOOL (WINAPI *INTERNETGETCONNECTEDSTATE)(LPDWORD, DWORD);
 981         INTERNETGETCONNECTEDSTATE pfnInternetGetConnectedState;
 982
 983         #define RESOLVE_FUNCTION(type, name) \
 984             pfn##name = (type)hDll.GetSymbol(_T(#name))
 985
 986         RESOLVE_FUNCTION(INTERNETGETCONNECTEDSTATE, InternetGetConnectedState);
 987
 988         if ( pfnInternetGetConnectedState )
 989         {
 990             DWORD flags = 0;
 991             if ( pfnInternetGetConnectedState(&flags, 0 /* reserved */) )
 992             {
 993                 // there is some connection to the net, see of which type
 994                 isAlwaysOnline = (flags & (INTERNET_CONNECTION_LAN |
 995                                            INTERNET_CONNECTION_PROXY)) != 0;
 996             }
 997             //else: no Internet connection at all
 998         }
 999     }
1000
1001     return isAlwaysOnline;
1002 }
1003
1004 bool wxDialUpManagerMSW::IsOnline() const
1005 {
1006     wxCHECK_MSG( IsOk(), false, wxT("using uninitialized wxDialUpManager") );
1007
1008     if ( IsAlwaysOnline() )
1009     {
1010         // always => now
1011         return true;
1012     }
1013
1014     if ( ms_userSpecifiedOnlineStatus != -1 )
1015     {
1016         // user specified flag overrides our logic
1017         return ms_userSpecifiedOnlineStatus != 0;
1018     }
1019     else
1020     {
1021         // return true if there is at least one active connection
1022         return FindActiveConnection() != 0;
1023     }
1024 }
1025
1026 void wxDialUpManagerMSW::SetOnlineStatus(bool isOnline)
1027 {
1028     wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1029
1030     ms_userSpecifiedOnlineStatus = isOnline;
1031 }
1032
1033 bool wxDialUpManagerMSW::EnableAutoCheckOnlineStatus(size_t nSeconds)
1034 {
1035     wxCHECK_MSG( IsOk(), false, wxT("using uninitialized wxDialUpManager") );
1036
1037     if ( m_autoCheckLevel++ )
1038     {
1039         // already checking
1040         return true;
1041     }
1042
1043     bool ok = ms_pfnRasConnectionNotification != 0;
1044
1045     if ( ok )
1046     {
1047         // we're running under NT 4.0, Windows 98 or later and can use
1048         // RasConnectionNotification() to be notified by a secondary thread
1049
1050         // first, see if we don't have this thread already running
1051         if ( m_hThread != 0 )
1052         {
1053             if ( ::ResumeThread(m_hThread) != (DWORD)-1 )
1054                 return true;
1055
1056             // we're leaving a zombie thread... but what else can we do?
1057             wxLogLastError(wxT("ResumeThread(RasThread)"));
1058
1059             ok = false;
1060         }
1061     }
1062
1063     // create all the stuff we need to be notified about RAS connection
1064     // status change
1065
1066     if ( ok )
1067     {
1068         // first create an event to wait on
1069         m_data->hEventRas = ::CreateEvent
1070                             (
1071                              NULL,      // security attribute (default)
1072                              FALSE,     // manual reset (no, it is automatic)
1073                              FALSE,     // initial state (not signaled)
1074                              NULL       // name (no)
1075                             );
1076         if ( !m_data->hEventRas )
1077         {
1078             wxLogLastError(wxT("CreateEvent(RasStatus)"));
1079
1080             ok = false;
1081         }
1082     }
1083
1084     if ( ok )
1085     {
1086         // create the event we use to quit the thread: using a manual event
1087         // here avoids problems with missing the event if wxDialUpManagerMSW
1088         // is created and destroyed immediately, before wxRasStatusWindowProc
1089         // starts waiting on the event
1090         m_data->hEventQuit = ::CreateEvent
1091                              (
1092                                 NULL,   // default security
1093                                 TRUE,   // manual event
1094                                 FALSE,  // initially non signalled
1095                                 NULL    // nameless
1096                              );
1097         if ( !m_data->hEventQuit )
1098         {
1099             wxLogLastError(wxT("CreateEvent(RasThreadQuit)"));
1100
1101             CleanUpThreadData();
1102
1103             ok = false;
1104         }
1105     }
1106
1107     if ( ok && !ms_hwndRas )
1108     {
1109         // create a hidden window to receive notification about connections
1110         // status change
1111         ms_hwndRas = wxCreateHiddenWindow
1112                      (
1113                         &gs_classForDialUpWindow,
1114                         wxMSWDIALUP_WNDCLASSNAME,
1115                         wxRasStatusWindowProc
1116                      );
1117         if ( !ms_hwndRas )
1118         {
1119             wxLogLastError(wxT("CreateWindow(RasHiddenWindow)"));
1120
1121             CleanUpThreadData();
1122
1123             ok = false;
1124         }
1125     }
1126
1127     m_data->hWnd = ms_hwndRas;
1128
1129     if ( ok )
1130     {
1131         // start the secondary thread
1132         m_data->dialUpManager = this;
1133
1134         DWORD tid;
1135         m_hThread = CreateThread
1136                     (
1137                      NULL,
1138                      0,
1139                      (LPTHREAD_START_ROUTINE)wxRasMonitorThread,
1140                      (void *)m_data,
1141                      0,
1142                      &tid
1143                     );
1144
1145         if ( !m_hThread )
1146         {
1147             wxLogLastError(wxT("CreateThread(RasStatusThread)"));
1148
1149             CleanUpThreadData();
1150         }
1151     }
1152
1153     if ( ok )
1154     {
1155         // start receiving RAS notifications
1156         DWORD dwRet = ms_pfnRasConnectionNotification
1157                       (
1158                         (HRASCONN)INVALID_HANDLE_VALUE,
1159                         m_data->hEventRas,
1160                         3 /* RASCN_Connection | RASCN_Disconnection */
1161                       );
1162
1163         if ( dwRet != 0 )
1164         {
1165             wxLogDebug(wxT("RasConnectionNotification() failed: %s"),
1166                        GetErrorString(dwRet).c_str());
1167
1168             CleanUpThreadData();
1169         }
1170         else
1171         {
1172             return true;
1173         }
1174     }
1175
1176     // we're running under Windows 95 and have to poll ourselves
1177     // (or, alternatively, the code above for NT/98 failed)
1178     m_timerStatusPolling.Stop();
1179     if ( nSeconds == 0 )
1180     {
1181         // default value
1182         nSeconds = 60;
1183     }
1184     m_timerStatusPolling.Start(nSeconds * 1000);
1185
1186     return true;
1187 }
1188
1189 void wxDialUpManagerMSW::DisableAutoCheckOnlineStatus()
1190 {
1191     wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1192
1193     if ( --m_autoCheckLevel != 0 )
1194     {
1195         // still checking
1196         return;
1197     }
1198
1199     if ( m_hThread )
1200     {
1201         // we have running secondary thread, it's just enough to suspend it
1202         if ( SuspendThread(m_hThread) == (DWORD)-1 )
1203         {
1204             wxLogLastError(wxT("SuspendThread(RasThread)"));
1205         }
1206     }
1207     else
1208     {
1209         // even simpler - just stop the timer
1210         m_timerStatusPolling.Stop();
1211     }
1212 }
1213
1214 // ----------------------------------------------------------------------------
1215 // stubs which don't do anything in MSW version
1216 // ----------------------------------------------------------------------------
1217
1218 void wxDialUpManagerMSW::SetWellKnownHost(const wxString& WXUNUSED(hostname),
1219                                           int WXUNUSED(port))
1220 {
1221     wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1222
1223     // nothing to do - we don't use this
1224 }
1225
1226 void wxDialUpManagerMSW::SetConnectCommand(const wxString& WXUNUSED(dial),
1227                                            const wxString& WXUNUSED(hangup))
1228 {
1229     wxCHECK_RET( IsOk(), wxT("using uninitialized wxDialUpManager") );
1230
1231     // nothing to do - we don't use this
1232 }
1233
1234 // ----------------------------------------------------------------------------
1235 // callbacks
1236 // ----------------------------------------------------------------------------
1237
1238 static DWORD wxRasMonitorThread(wxRasThreadData *data)
1239 {
1240     HANDLE handles[2];
1241     handles[0] = data->hEventRas;
1242     handles[1] = data->hEventQuit;
1243
1244     bool cont = true;
1245     while ( cont )
1246     {
1247         DWORD dwRet = ::WaitForMultipleObjects(2, handles, FALSE, INFINITE);
1248
1249         switch ( dwRet )
1250         {
1251             case WAIT_OBJECT_0:
1252                 // RAS connection status changed
1253                 SendMessage(data->hWnd, wxWM_RAS_STATUS_CHANGED,
1254                             0, (LPARAM)data);
1255                 break;
1256
1257             case WAIT_OBJECT_0 + 1:
1258                 cont = false;
1259                 break;
1260
1261             default:
1262                 wxFAIL_MSG( _T("unexpected return of WaitForMultipleObjects()") );
1263                 // fall through
1264
1265             case WAIT_FAILED:
1266 #ifdef __WXDEBUG__
1267                 // using wxLogLastError() from here is dangerous: we risk to
1268                 // deadlock the main thread if wxLog sends output to GUI
1269                 DWORD err = GetLastError();
1270                 wxMessageOutputDebug dbg;
1271                 dbg.Printf
1272                 (
1273                     wxT("WaitForMultipleObjects(RasMonitor) failed: 0x%08lx (%s)"),
1274                     err,
1275                     wxSysErrorMsg(err)
1276                 );
1277 #endif // __WXDEBUG__
1278
1279                 // no sense in continuing, who knows if the handles we're
1280                 // waiting for even exist yet...
1281                 return (DWORD)-1;
1282         }
1283     }
1284
1285     // we don't need it any more now and if this thread ran, it is our
1286     // responsability to free the data
1287     delete data;
1288
1289     return 0;
1290 }
1291
1292 static LRESULT APIENTRY wxRasStatusWindowProc(HWND hWnd, UINT message,
1293                                               WPARAM wParam, LPARAM lParam)
1294 {
1295     switch ( message )
1296     {
1297         case wxWM_RAS_STATUS_CHANGED:
1298             {
1299                 wxRasThreadData *data = (wxRasThreadData *)lParam;
1300                 data->dialUpManager->OnConnectStatusChange();
1301             }
1302             break;
1303
1304         case wxWM_RAS_DIALING_PROGRESS:
1305             {
1306                 wxDialUpManagerMSW *dialMan = wxDialUpManagerMSW::GetDialer();
1307
1308                 dialMan->OnDialProgress((RASCONNSTATE)wParam, lParam);
1309             }
1310             break;
1311
1312         default:
1313             return ::DefWindowProc(hWnd, message, wParam, lParam);
1314     }
1315
1316     return 0;
1317 }
1318
1319 static void WINAPI wxRasDialFunc(UINT WXUNUSED(unMsg),
1320                                  RASCONNSTATE rasconnstate,
1321                                  DWORD dwError)
1322 {
1323     wxDialUpManagerMSW *dialUpManager = wxDialUpManagerMSW::GetDialer();
1324
1325     wxCHECK_RET( dialUpManager, wxT("who started to dial then?") );
1326
1327     SendMessage(wxDialUpManagerMSW::GetRasWindow(), wxWM_RAS_DIALING_PROGRESS,
1328                 rasconnstate, dwError);
1329 }
1330
1331 #endif // __BORLANDC__
1332
1333 #endif // wxUSE_DIALUP_MANAGER