src/msw/utils.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/utils.cpp
   3 // Purpose:     Various utilities
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21 // #pragma implementation "utils.h"   // Note: this is done in utilscmn.cpp now.
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/utils.h"
  33     #include "wx/app.h"
  34     #include "wx/cursor.h"
  35     #include "wx/intl.h"
  36     #include "wx/log.h"
  37 #endif  //WX_PRECOMP
  38
  39 // In some mingws there is a missing extern "C" int the winsock header,
  40 // so we put it here just to be safe. Note that this must appear _before_
  41 // #include "wx/msw/private.h" which itself includes <windows.h>, as this
  42 // one in turn includes <winsock.h> unless we define WIN32_LEAN_AND_MEAN.
  43 //
  44 #if defined(__WIN32__) && !defined(__TWIN32__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__))
  45 extern "C" {
  46     #include <winsock.h>    // we use socket functions in wxGetFullHostName()
  47 }
  48 #endif
  49
  50 #include "wx/msw/private.h"     // includes <windows.h>
  51
  52 #include "wx/timer.h"
  53
  54 #include <ctype.h>
  55
  56 #if !defined(__GNUWIN32__) && !defined(__WXWINE__) && !defined(__SALFORDC__)
  57     #include <direct.h>
  58
  59     #ifndef __MWERKS__
  60         #include <dos.h>
  61     #endif
  62 #endif  //GNUWIN32
  63
  64 #if defined(__GNUWIN32__) && !defined(__TWIN32__)
  65     #include <sys/unistd.h>
  66     #include <sys/stat.h>
  67 #endif  //GNUWIN32
  68
  69 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  70                     // this (3.1 I believe) and how to test for it.
  71                     // If this works for Borland 4.0 as well, then no worries.
  72     #include <dir.h>
  73 #endif
  74
  75 // VZ: there is some code using NetXXX() functions to get the full user name:
  76 //     I don't think it's a good idea because they don't work under Win95 and
  77 //     seem to return the same as wxGetUserId() under NT. If you really want
  78 //     to use them, just #define USE_NET_API
  79 #undef USE_NET_API
  80
  81 #ifdef USE_NET_API
  82     #include <lm.h>
  83 #endif // USE_NET_API
  84
  85 #if defined(__WIN32__) && !defined(__WXWINE__)
  86     #include <io.h>
  87
  88     #ifndef __GNUWIN32__
  89         #include <shellapi.h>
  90     #endif
  91 #endif
  92
  93 #include <stdio.h>
  94 #include <stdlib.h>
  95 #include <string.h>
  96 #ifndef __WATCOMC__
  97     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  98         #include <errno.h>
  99     #endif
 100 #endif
 101 #include <stdarg.h>
 102
 103 //// BEGIN for console support: VC++ only
 104 #ifdef __VISUALC__
 105
 106 #include "wx/msw/msvcrt.h"
 107
 108 #include <fcntl.h>
 109
 110 #include "wx/ioswrap.h"
 111
 112 #if wxUSE_IOSTREAMH
 113 // N.B. BC++ doesn't have istream.h, ostream.h
 114 #  include <io.h>
 115 #  include <fstream.h>
 116 #else
 117 #  include <fstream>
 118 #endif
 119
 120 /* Need to undef new if including crtdbg.h */
 121 #  ifdef new
 122 #  undef new
 123 #  endif
 124
 125 #ifndef __WIN16__
 126 #  include <crtdbg.h>
 127 #endif
 128
 129 #  if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
 130 #  define new new(__TFILE__,__LINE__)
 131 #  endif
 132
 133 #endif
 134   // __VISUALC__
 135 /// END for console support
 136
 137 // ----------------------------------------------------------------------------
 138 // constants
 139 // ----------------------------------------------------------------------------
 140
 141 // In the WIN.INI file
 142 static const wxChar WX_SECTION[] = wxT("wxWindows");
 143 static const wxChar eUSERNAME[]  = wxT("UserName");
 144
 145 // these are only used under Win16
 146 #ifndef __WIN32__
 147 static const wxChar eHOSTNAME[]  = wxT("HostName");
 148 static const wxChar eUSERID[]    = wxT("UserId");
 149 #endif // !Win32
 150
 151 // ============================================================================
 152 // implementation
 153 // ============================================================================
 154
 155 // ----------------------------------------------------------------------------
 156 // get host name and related
 157 // ----------------------------------------------------------------------------
 158
 159 // Get hostname only (without domain name)
 160 bool wxGetHostName(wxChar *buf, int maxSize)
 161 {
 162 #if defined(__WIN32__) && !defined(__TWIN32__)
 163     DWORD nSize = maxSize;
 164     if ( !::GetComputerName(buf, &nSize) )
 165     {
 166         wxLogLastError(wxT("GetComputerName"));
 167
 168         return FALSE;
 169     }
 170
 171     return TRUE;
 172 #else
 173     wxChar *sysname;
 174     const wxChar *default_host = wxT("noname");
 175
 176     if ((sysname = wxGetenv(wxT("SYSTEM_NAME"))) == NULL) {
 177         GetProfileString(WX_SECTION, eHOSTNAME, default_host, buf, maxSize - 1);
 178     } else
 179         wxStrncpy(buf, sysname, maxSize - 1);
 180     buf[maxSize] = wxT('\0');
 181     return *buf ? TRUE : FALSE;
 182 #endif
 183 }
 184
 185 // get full hostname (with domain name if possible)
 186 bool wxGetFullHostName(wxChar *buf, int maxSize)
 187 {
 188 #if defined(__WIN32__) && !defined(__TWIN32__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__))
 189     // TODO should use GetComputerNameEx() when available
 190     WSADATA wsa;
 191     if ( WSAStartup(MAKEWORD(1, 1), &wsa) == 0 )
 192     {
 193         wxString host;
 194         char bufA[256];
 195         if ( gethostname(bufA, WXSIZEOF(bufA)) == 0 )
 196         {
 197             // gethostname() won't usually include the DNS domain name, for
 198             // this we need to work a bit more
 199             if ( !strchr(bufA, '.') )
 200             {
 201                 struct hostent *pHostEnt =  gethostbyname(bufA);
 202
 203                 if ( pHostEnt )
 204                 {
 205                     // Windows will use DNS internally now
 206                     pHostEnt = gethostbyaddr(pHostEnt->h_addr, 4, PF_INET);
 207                 }
 208
 209                 if ( pHostEnt )
 210                 {
 211                     host = pHostEnt->h_name;
 212                 }
 213             }
 214         }
 215
 216         WSACleanup();
 217
 218         if ( !!host )
 219         {
 220             wxStrncpy(buf, host, maxSize);
 221
 222             return TRUE;
 223         }
 224     }
 225 #endif // Win32
 226
 227     return wxGetHostName(buf, maxSize);
 228 }
 229
 230 // Get user ID e.g. jacs
 231 bool wxGetUserId(wxChar *buf, int maxSize)
 232 {
 233 #if defined(__WIN32__) && !defined(__win32s__) && !defined(__TWIN32__)
 234     DWORD nSize = maxSize;
 235     if ( ::GetUserName(buf, &nSize) == 0 )
 236     {
 237         // actually, it does happen on Win9x if the user didn't log on
 238         DWORD res = ::GetEnvironmentVariable(wxT("username"), buf, maxSize);
 239         if ( res == 0 )
 240         {
 241             // not found
 242             return FALSE;
 243         }
 244     }
 245
 246     return TRUE;
 247 #else   // Win16 or Win32s
 248     wxChar *user;
 249     const wxChar *default_id = wxT("anonymous");
 250
 251     // Can't assume we have NIS (PC-NFS) or some other ID daemon
 252     // So we ...
 253     if (  (user = wxGetenv(wxT("USER"))) == NULL &&
 254             (user = wxGetenv(wxT("LOGNAME"))) == NULL )
 255     {
 256         // Use wxWindows configuration data (comming soon)
 257         GetProfileString(WX_SECTION, eUSERID, default_id, buf, maxSize - 1);
 258     }
 259     else
 260     {
 261         wxStrncpy(buf, user, maxSize - 1);
 262     }
 263
 264     return *buf ? TRUE : FALSE;
 265 #endif
 266 }
 267
 268 // Get user name e.g. Julian Smart
 269 bool wxGetUserName(wxChar *buf, int maxSize)
 270 {
 271 #if wxUSE_PENWINDOWS && !defined(__WATCOMC__) && !defined(__GNUWIN32__)
 272     extern HANDLE g_hPenWin; // PenWindows Running?
 273     if (g_hPenWin)
 274     {
 275         // PenWindows Does have a user concept!
 276         // Get the current owner of the recognizer
 277         GetPrivateProfileString("Current", "User", default_name, wxBuffer, maxSize - 1, "PENWIN.INI");
 278         strncpy(buf, wxBuffer, maxSize - 1);
 279     }
 280     else
 281 #endif
 282     {
 283 #ifdef USE_NET_API
 284         CHAR szUserName[256];
 285         if ( !wxGetUserId(szUserName, WXSIZEOF(szUserName)) )
 286             return FALSE;
 287
 288         // TODO how to get the domain name?
 289         CHAR *szDomain = "";
 290
 291         // the code is based on the MSDN example (also see KB article Q119670)
 292         WCHAR wszUserName[256];          // Unicode user name
 293         WCHAR wszDomain[256];
 294         LPBYTE ComputerName;
 295
 296         USER_INFO_2 *ui2;         // User structure
 297
 298         // Convert ANSI user name and domain to Unicode
 299         MultiByteToWideChar( CP_ACP, 0, szUserName, strlen(szUserName)+1,
 300                 wszUserName, WXSIZEOF(wszUserName) );
 301         MultiByteToWideChar( CP_ACP, 0, szDomain, strlen(szDomain)+1,
 302                 wszDomain, WXSIZEOF(wszDomain) );
 303
 304         // Get the computer name of a DC for the domain.
 305         if ( NetGetDCName( NULL, wszDomain, &ComputerName ) != NERR_Success )
 306         {
 307             wxLogError(wxT("Can not find domain controller"));
 308
 309             goto error;
 310         }
 311
 312         // Look up the user on the DC
 313         NET_API_STATUS status = NetUserGetInfo( (LPWSTR)ComputerName,
 314                 (LPWSTR)&wszUserName,
 315                 2, // level - we want USER_INFO_2
 316                 (LPBYTE *) &ui2 );
 317         switch ( status )
 318         {
 319             case NERR_Success:
 320                 // ok
 321                 break;
 322
 323             case NERR_InvalidComputer:
 324                 wxLogError(wxT("Invalid domain controller name."));
 325
 326                 goto error;
 327
 328             case NERR_UserNotFound:
 329                 wxLogError(wxT("Invalid user name '%s'."), szUserName);
 330
 331                 goto error;
 332
 333             default:
 334                 wxLogSysError(wxT("Can't get information about user"));
 335
 336                 goto error;
 337         }
 338
 339         // Convert the Unicode full name to ANSI
 340         WideCharToMultiByte( CP_ACP, 0, ui2->usri2_full_name, -1,
 341                 buf, maxSize, NULL, NULL );
 342
 343         return TRUE;
 344
 345 error:
 346         wxLogError(wxT("Couldn't look up full user name."));
 347
 348         return FALSE;
 349 #else  // !USE_NET_API
 350         // Could use NIS, MS-Mail or other site specific programs
 351         // Use wxWindows configuration data
 352         bool ok = GetProfileString(WX_SECTION, eUSERNAME, wxT(""), buf, maxSize - 1) != 0;
 353         if ( !ok )
 354         {
 355             ok = wxGetUserId(buf, maxSize);
 356         }
 357
 358         if ( !ok )
 359         {
 360             wxStrncpy(buf, wxT("Unknown User"), maxSize);
 361         }
 362 #endif // Win32/16
 363     }
 364
 365     return TRUE;
 366 }
 367
 368 const wxChar* wxGetHomeDir(wxString *pstr)
 369 {
 370   wxString& strDir = *pstr;
 371
 372   #if defined(__UNIX__) && !defined(__TWIN32__)
 373     const wxChar *szHome = wxGetenv("HOME");
 374     if ( szHome == NULL ) {
 375       // we're homeless...
 376       wxLogWarning(_("can't find user's HOME, using current directory."));
 377       strDir = wxT(".");
 378     }
 379     else
 380        strDir = szHome;
 381
 382     // add a trailing slash if needed
 383     if ( strDir.Last() != wxT('/') )
 384       strDir << wxT('/');
 385   #else   // Windows
 386     #ifdef  __WIN32__
 387       const wxChar *szHome = wxGetenv(wxT("HOMEDRIVE"));
 388       if ( szHome != NULL )
 389         strDir << szHome;
 390       szHome = wxGetenv(wxT("HOMEPATH"));
 391       if ( szHome != NULL ) {
 392         strDir << szHome;
 393
 394         // the idea is that under NT these variables have default values
 395         // of "%systemdrive%:" and "\\". As we don't want to create our
 396         // config files in the root directory of the system drive, we will
 397         // create it in our program's dir. However, if the user took care
 398         // to set HOMEPATH to something other than "\\", we suppose that he
 399         // knows what he is doing and use the supplied value.
 400         if ( wxStrcmp(szHome, wxT("\\")) != 0 )
 401           return strDir.c_str();
 402       }
 403
 404     #else   // Win16
 405       // Win16 has no idea about home, so use the working directory instead
 406     #endif  // WIN16/32
 407
 408     // 260 was taken from windef.h
 409     #ifndef MAX_PATH
 410       #define MAX_PATH  260
 411     #endif
 412
 413     wxString strPath;
 414     ::GetModuleFileName(::GetModuleHandle(NULL),
 415                         strPath.GetWriteBuf(MAX_PATH), MAX_PATH);
 416     strPath.UngetWriteBuf();
 417
 418     // extract the dir name
 419     wxSplitPath(strPath, &strDir, NULL, NULL);
 420
 421   #endif  // UNIX/Win
 422
 423   return strDir.c_str();
 424 }
 425
 426 wxChar *wxGetUserHome(const wxString& user)
 427 {
 428     // VZ: the old code here never worked for user != "" anyhow! Moreover, it
 429     //     returned sometimes a malloc()'d pointer, sometimes a pointer to a
 430     //     static buffer and sometimes I don't even know what.
 431     static wxString s_home;
 432
 433     return (wxChar *)wxGetHomeDir(&s_home);
 434 }
 435
 436 bool wxDirExists(const wxString& dir)
 437 {
 438 #if defined(__WIN32__)
 439     WIN32_FIND_DATA fileInfo;
 440 #else // Win16
 441     #ifdef __BORLANDC__
 442         struct ffblk fileInfo;
 443     #else
 444         struct find_t fileInfo;
 445     #endif
 446 #endif // Win32/16
 447
 448 #if defined(__WIN32__)
 449     HANDLE h = ::FindFirstFile(dir, &fileInfo);
 450
 451     if ( h == INVALID_HANDLE_VALUE )
 452     {
 453         wxLogLastError(wxT("FindFirstFile"));
 454
 455         return FALSE;
 456     }
 457
 458     ::FindClose(h);
 459
 460     return (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
 461 #else // Win16
 462     // In Borland findfirst has a different argument
 463     // ordering from _dos_findfirst. But _dos_findfirst
 464     // _should_ be ok in both MS and Borland... why not?
 465     #ifdef __BORLANDC__
 466         return (findfirst(dir, &fileInfo, _A_SUBDIR) == 0 &&
 467                (fileInfo.ff_attrib & _A_SUBDIR) != 0);
 468     #else
 469         return (_dos_findfirst(dir, _A_SUBDIR, &fileInfo) == 0) &&
 470                ((fileInfo.attrib & _A_SUBDIR) != 0);
 471     #endif
 472 #endif // Win32/16
 473 }
 474
 475 // ----------------------------------------------------------------------------
 476 // process management
 477 // ----------------------------------------------------------------------------
 478
 479 int wxKill(long pid, int sig)
 480 {
 481     // TODO use SendMessage(WM_QUIT) and TerminateProcess() if needed
 482
 483     return 0;
 484 }
 485
 486 // Execute a program in an Interactive Shell
 487 bool wxShell(const wxString& command)
 488 {
 489     wxChar *shell = wxGetenv(wxT("COMSPEC"));
 490     if ( !shell )
 491         shell = wxT("\\COMMAND.COM");
 492
 493     wxString cmd;
 494     if ( !command )
 495     {
 496         // just the shell
 497         cmd = shell;
 498     }
 499     else
 500     {
 501         // pass the command to execute to the command processor
 502         cmd.Printf(wxT("%s /c %s"), shell, command.c_str());
 503     }
 504
 505     return wxExecute(cmd, TRUE /* sync */) != 0;
 506 }
 507
 508 // ----------------------------------------------------------------------------
 509 // misc
 510 // ----------------------------------------------------------------------------
 511
 512 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 513 long wxGetFreeMemory()
 514 {
 515 #if defined(__WIN32__) && !defined(__BORLANDC__) && !defined(__TWIN32__)
 516     MEMORYSTATUS memStatus;
 517     memStatus.dwLength = sizeof(MEMORYSTATUS);
 518     GlobalMemoryStatus(&memStatus);
 519     return memStatus.dwAvailPhys;
 520 #else
 521     return (long)GetFreeSpace(0);
 522 #endif
 523 }
 524
 525 // Emit a beeeeeep
 526 void wxBell()
 527 {
 528     ::MessageBeep((UINT)-1);        // default sound
 529 }
 530
 531 wxString wxGetOsDescription()
 532 {
 533 #ifdef __WIN32__
 534     wxString str;
 535
 536     OSVERSIONINFO info;
 537     wxZeroMemory(info);
 538
 539     info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 540     if ( ::GetVersionEx(&info) )
 541     {
 542         switch ( info.dwPlatformId )
 543         {
 544             case VER_PLATFORM_WIN32s:
 545                 str = _("Win32s on Windows 3.1");
 546                 break;
 547
 548             case VER_PLATFORM_WIN32_WINDOWS:
 549                 str.Printf(_("Windows 9%c"),
 550                            info.dwMinorVersion == 0 ? _T('5') : _T('9'));
 551                 if ( !wxIsEmpty(info.szCSDVersion) )
 552                 {
 553                     str << _T(" (") << info.szCSDVersion << _T(')');
 554                 }
 555                 break;
 556
 557             case VER_PLATFORM_WIN32_NT:
 558                 str.Printf(_T("Windows NT %lu.%lu (build %lu"),
 559                            info.dwMajorVersion,
 560                            info.dwMinorVersion,
 561                            info.dwBuildNumber);
 562                 if ( !wxIsEmpty(info.szCSDVersion) )
 563                 {
 564                     str << _T(", ") << info.szCSDVersion;
 565                 }
 566                 str << _T(')');
 567                 break;
 568         }
 569     }
 570     else
 571     {
 572         wxFAIL_MSG( _T("GetVersionEx() failed") ); // should never happen
 573     }
 574
 575     return str;
 576 #else // Win16
 577     return _("Windows 3.1");
 578 #endif // Win32/16
 579 }
 580
 581 int wxGetOsVersion(int *majorVsn, int *minorVsn)
 582 {
 583 #if defined(__WIN32__) && !defined(__SC__)
 584     OSVERSIONINFO info;
 585     wxZeroMemory(info);
 586
 587     info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 588     if ( ::GetVersionEx(&info) )
 589     {
 590         if (majorVsn)
 591             *majorVsn = info.dwMajorVersion;
 592         if (minorVsn)
 593             *minorVsn = info.dwMinorVersion;
 594
 595         switch ( info.dwPlatformId )
 596         {
 597             case VER_PLATFORM_WIN32s:
 598                 return wxWIN32S;
 599
 600             case VER_PLATFORM_WIN32_WINDOWS:
 601                 return wxWIN95;
 602
 603             case VER_PLATFORM_WIN32_NT:
 604                 return wxWINDOWS_NT;
 605         }
 606     }
 607
 608     return wxWINDOWS; // error if we get here, return generic value
 609 #else // Win16
 610     int retValue = wxWINDOWS;
 611     #ifdef __WINDOWS_386__
 612         retValue = wxWIN386;
 613     #else
 614         #if !defined(__WATCOMC__) && !defined(GNUWIN32) && wxUSE_PENWINDOWS
 615             extern HANDLE g_hPenWin;
 616             retValue = g_hPenWin ? wxPENWINDOWS : wxWINDOWS;
 617         #endif
 618     #endif
 619
 620     if (majorVsn)
 621         *majorVsn = 3;
 622     if (minorVsn)
 623         *minorVsn = 1;
 624
 625     return retValue;
 626 #endif
 627 }
 628
 629 // ----------------------------------------------------------------------------
 630 // sleep functions
 631 // ----------------------------------------------------------------------------
 632
 633 #if wxUSE_GUI
 634
 635 // Sleep for nSecs seconds. Attempt a Windows implementation using timers.
 636 static bool gs_inTimer = FALSE;
 637
 638 class wxSleepTimer: public wxTimer
 639 {
 640 public:
 641     virtual void Notify()
 642     {
 643         gs_inTimer = FALSE;
 644         Stop();
 645     }
 646 };
 647
 648 static wxTimer *wxTheSleepTimer = NULL;
 649
 650 void wxUsleep(unsigned long milliseconds)
 651 {
 652 #ifdef __WIN32__
 653     ::Sleep(milliseconds);
 654 #else
 655     if (gs_inTimer)
 656         return;
 657
 658     wxTheSleepTimer = new wxSleepTimer;
 659     gs_inTimer = TRUE;
 660     wxTheSleepTimer->Start(milliseconds);
 661     while (gs_inTimer)
 662     {
 663         if (wxTheApp->Pending())
 664             wxTheApp->Dispatch();
 665     }
 666     delete wxTheSleepTimer;
 667     wxTheSleepTimer = NULL;
 668 #endif
 669 }
 670
 671 void wxSleep(int nSecs)
 672 {
 673     if (gs_inTimer)
 674         return;
 675
 676     wxTheSleepTimer = new wxSleepTimer;
 677     gs_inTimer = TRUE;
 678     wxTheSleepTimer->Start(nSecs*1000);
 679     while (gs_inTimer)
 680     {
 681         if (wxTheApp->Pending())
 682             wxTheApp->Dispatch();
 683     }
 684     delete wxTheSleepTimer;
 685     wxTheSleepTimer = NULL;
 686 }
 687
 688 // Consume all events until no more left
 689 void wxFlushEvents()
 690 {
 691 //  wxYield();
 692 }
 693
 694 #elif defined(__WIN32__) // wxUSE_GUI
 695
 696 void wxUsleep(unsigned long milliseconds)
 697 {
 698     ::Sleep(milliseconds);
 699 }
 700
 701 void wxSleep(int nSecs)
 702 {
 703     wxUsleep(1000*nSecs);
 704 }
 705
 706 #endif // wxUSE_GUI/!wxUSE_GUI
 707
 708 // ----------------------------------------------------------------------------
 709 // deprecated (in favour of wxLog) log functions
 710 // ----------------------------------------------------------------------------
 711
 712 #if wxUSE_GUI
 713
 714 // Output a debug mess., in a system dependent fashion.
 715 void wxDebugMsg(const wxChar *fmt ...)
 716 {
 717   va_list ap;
 718   static wxChar buffer[512];
 719
 720   if (!wxTheApp->GetWantDebugOutput())
 721     return ;
 722
 723   va_start(ap, fmt);
 724
 725   wvsprintf(buffer,fmt,ap) ;
 726   OutputDebugString((LPCTSTR)buffer) ;
 727
 728   va_end(ap);
 729 }
 730
 731 // Non-fatal error: pop up message box and (possibly) continue
 732 void wxError(const wxString& msg, const wxString& title)
 733 {
 734   wxSprintf(wxBuffer, wxT("%s\nContinue?"), WXSTRINGCAST msg);
 735   if (MessageBox(NULL, (LPCTSTR)wxBuffer, (LPCTSTR)WXSTRINGCAST title,
 736              MB_ICONSTOP | MB_YESNO) == IDNO)
 737     wxExit();
 738 }
 739
 740 // Fatal error: pop up message box and abort
 741 void wxFatalError(const wxString& msg, const wxString& title)
 742 {
 743   wxSprintf(wxBuffer, wxT("%s: %s"), WXSTRINGCAST title, WXSTRINGCAST msg);
 744   FatalAppExit(0, (LPCTSTR)wxBuffer);
 745 }
 746
 747 // ----------------------------------------------------------------------------
 748 // functions to work with .INI files
 749 // ----------------------------------------------------------------------------
 750
 751 // Reading and writing resources (eg WIN.INI, .Xdefaults)
 752 #if wxUSE_RESOURCES
 753 bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file)
 754 {
 755   if (file != wxT(""))
 756 // Don't know what the correct cast should be, but it doesn't
 757 // compile in BC++/16-bit without this cast.
 758 #if !defined(__WIN32__)
 759     return (WritePrivateProfileString((const char*) section, (const char*) entry, (const char*) value, (const char*) file) != 0);
 760 #else
 761     return (WritePrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)value, (LPCTSTR)WXSTRINGCAST file) != 0);
 762 #endif
 763   else
 764     return (WriteProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)WXSTRINGCAST value) != 0);
 765 }
 766
 767 bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file)
 768 {
 769     wxString buf;
 770     buf.Printf(wxT("%.4f"), value);
 771
 772     return wxWriteResource(section, entry, buf, file);
 773 }
 774
 775 bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file)
 776 {
 777     wxString buf;
 778     buf.Printf(wxT("%ld"), value);
 779
 780     return wxWriteResource(section, entry, buf, file);
 781 }
 782
 783 bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file)
 784 {
 785     wxString buf;
 786     buf.Printf(wxT("%d"), value);
 787
 788     return wxWriteResource(section, entry, buf, file);
 789 }
 790
 791 bool wxGetResource(const wxString& section, const wxString& entry, wxChar **value, const wxString& file)
 792 {
 793     static const wxChar defunkt[] = wxT("$$default");
 794     if (file != wxT(""))
 795     {
 796         int n = GetPrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
 797                 (LPTSTR)wxBuffer, 1000, (LPCTSTR)WXSTRINGCAST file);
 798         if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
 799             return FALSE;
 800     }
 801     else
 802     {
 803         int n = GetProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
 804                 (LPTSTR)wxBuffer, 1000);
 805         if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
 806             return FALSE;
 807     }
 808     if (*value) delete[] (*value);
 809     *value = copystring(wxBuffer);
 810     return TRUE;
 811 }
 812
 813 bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file)
 814 {
 815     wxChar *s = NULL;
 816     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 817     if (succ)
 818     {
 819         *value = (float)wxStrtod(s, NULL);
 820         delete[] s;
 821         return TRUE;
 822     }
 823     else return FALSE;
 824 }
 825
 826 bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file)
 827 {
 828     wxChar *s = NULL;
 829     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 830     if (succ)
 831     {
 832         *value = wxStrtol(s, NULL, 10);
 833         delete[] s;
 834         return TRUE;
 835     }
 836     else return FALSE;
 837 }
 838
 839 bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file)
 840 {
 841     wxChar *s = NULL;
 842     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 843     if (succ)
 844     {
 845         *value = (int)wxStrtol(s, NULL, 10);
 846         delete[] s;
 847         return TRUE;
 848     }
 849     else return FALSE;
 850 }
 851 #endif // wxUSE_RESOURCES
 852
 853 // ---------------------------------------------------------------------------
 854 // helper functions for showing a "busy" cursor
 855 // ---------------------------------------------------------------------------
 856
 857 static HCURSOR gs_wxBusyCursor = 0;     // new, busy cursor
 858 static HCURSOR gs_wxBusyCursorOld = 0;  // old cursor
 859 static int gs_wxBusyCursorCount = 0;
 860
 861 extern HCURSOR wxGetCurrentBusyCursor()
 862 {
 863     return gs_wxBusyCursor;
 864 }
 865
 866 // Set the cursor to the busy cursor for all windows
 867 void wxBeginBusyCursor(wxCursor *cursor)
 868 {
 869     if ( gs_wxBusyCursorCount++ == 0 )
 870     {
 871         gs_wxBusyCursor = (HCURSOR)cursor->GetHCURSOR();
 872         gs_wxBusyCursorOld = ::SetCursor(gs_wxBusyCursor);
 873     }
 874     //else: nothing to do, already set
 875 }
 876
 877 // Restore cursor to normal
 878 void wxEndBusyCursor()
 879 {
 880     wxCHECK_RET( gs_wxBusyCursorCount > 0,
 881                  wxT("no matching wxBeginBusyCursor() for wxEndBusyCursor()") );
 882
 883     if ( --gs_wxBusyCursorCount == 0 )
 884     {
 885         ::SetCursor(gs_wxBusyCursorOld);
 886
 887         gs_wxBusyCursorOld = 0;
 888     }
 889 }
 890
 891 // TRUE if we're between the above two calls
 892 bool wxIsBusy()
 893 {
 894   return (gs_wxBusyCursorCount > 0);
 895 }
 896
 897 // Check whether this window wants to process messages, e.g. Stop button
 898 // in long calculations.
 899 bool wxCheckForInterrupt(wxWindow *wnd)
 900 {
 901     wxCHECK( wnd, FALSE );
 902
 903     MSG msg;
 904     while ( ::PeekMessage(&msg, GetHwndOf(wnd), 0, 0, PM_REMOVE) )
 905     {
 906         ::TranslateMessage(&msg);
 907         ::DispatchMessage(&msg);
 908     }
 909
 910     return TRUE;
 911 }
 912
 913 // MSW only: get user-defined resource from the .res file.
 914 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
 915
 916 wxChar *wxLoadUserResource(const wxString& resourceName, const wxString& resourceType)
 917 {
 918     HRSRC hResource = ::FindResource(wxGetInstance(), resourceName, resourceType);
 919     if ( hResource == 0 )
 920         return NULL;
 921
 922     HGLOBAL hData = ::LoadResource(wxGetInstance(), hResource);
 923     if ( hData == 0 )
 924         return NULL;
 925
 926     wxChar *theText = (wxChar *)::LockResource(hData);
 927     if ( !theText )
 928         return NULL;
 929
 930     // Not all compilers put a zero at the end of the resource (e.g. BC++ doesn't).
 931     // so we need to find the length of the resource.
 932     int len = ::SizeofResource(wxGetInstance(), hResource);
 933     wxChar  *s = new wxChar[len+1];
 934     wxStrncpy(s,theText,len);
 935     s[len]=0;
 936
 937     // wxChar *s = copystring(theText);
 938
 939     // Obsolete in WIN32
 940 #ifndef __WIN32__
 941     UnlockResource(hData);
 942 #endif
 943
 944     // No need??
 945     //  GlobalFree(hData);
 946
 947     return s;
 948 }
 949
 950 // ----------------------------------------------------------------------------
 951 // get display info
 952 // ----------------------------------------------------------------------------
 953
 954 void wxGetMousePosition( int* x, int* y )
 955 {
 956     POINT pt;
 957     GetCursorPos( & pt );
 958     if ( x ) *x = pt.x;
 959     if ( y ) *y = pt.y;
 960 };
 961
 962 // Return TRUE if we have a colour display
 963 bool wxColourDisplay()
 964 {
 965     ScreenHDC dc;
 966     int noCols = GetDeviceCaps(dc, NUMCOLORS);
 967
 968     return (noCols == -1) || (noCols > 2);
 969 }
 970
 971 // Returns depth of screen
 972 int wxDisplayDepth()
 973 {
 974     ScreenHDC dc;
 975     return GetDeviceCaps(dc, PLANES) * GetDeviceCaps(dc, BITSPIXEL);
 976 }
 977
 978 // Get size of display
 979 void wxDisplaySize(int *width, int *height)
 980 {
 981     ScreenHDC dc;
 982
 983     if ( width ) *width = GetDeviceCaps(dc, HORZRES);
 984     if ( height ) *height = GetDeviceCaps(dc, VERTRES);
 985 }
 986
 987 // ---------------------------------------------------------------------------
 988 // window information functions
 989 // ---------------------------------------------------------------------------
 990
 991 wxString WXDLLEXPORT wxGetWindowText(WXHWND hWnd)
 992 {
 993     wxString str;
 994     int len = GetWindowTextLength((HWND)hWnd) + 1;
 995     GetWindowText((HWND)hWnd, str.GetWriteBuf(len), len);
 996     str.UngetWriteBuf();
 997
 998     return str;
 999 }
1000
1001 wxString WXDLLEXPORT wxGetWindowClass(WXHWND hWnd)
1002 {
1003     wxString str;
1004
1005     int len = 256; // some starting value
1006
1007     for ( ;; )
1008     {
1009         // as we've #undefined GetClassName we must now manually choose the
1010         // right function to call
1011         int count =
1012
1013         #ifndef __WIN32__
1014             GetClassName
1015         #else // Win32
1016             #ifdef UNICODE
1017                 GetClassNameW
1018             #else // !Unicode
1019                 #ifdef __TWIN32__
1020                     GetClassName
1021                 #else // !Twin32
1022                     GetClassNameA
1023                 #endif // Twin32/!Twin32
1024             #endif // Unicode/ANSI
1025         #endif // Win16/32
1026                                     ((HWND)hWnd, str.GetWriteBuf(len), len);
1027
1028         str.UngetWriteBuf();
1029         if ( count == len )
1030         {
1031             // the class name might have been truncated, retry with larger
1032             // buffer
1033             len *= 2;
1034         }
1035         else
1036         {
1037             break;
1038         }
1039     }
1040
1041     return str;
1042 }
1043
1044 WXWORD WXDLLEXPORT wxGetWindowId(WXHWND hWnd)
1045 {
1046 #ifndef __WIN32__
1047     return GetWindowWord((HWND)hWnd, GWW_ID);
1048 #else // Win32
1049     return GetWindowLong((HWND)hWnd, GWL_ID);
1050 #endif // Win16/32
1051 }
1052
1053 #endif // wxUSE_GUI
1054
1055 #if 0
1056 //------------------------------------------------------------------------
1057 // wild character routines
1058 //------------------------------------------------------------------------
1059
1060 bool wxIsWild( const wxString& pattern )
1061 {
1062   wxString tmp = pattern;
1063   char *pat = WXSTRINGCAST(tmp);
1064     while (*pat) {
1065   switch (*pat++) {
1066   case '?': case '*': case '[': case '{':
1067       return TRUE;
1068   case '\\':
1069       if (!*pat++)
1070     return FALSE;
1071   }
1072     }
1073     return FALSE;
1074 };
1075
1076
1077 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1078 {
1079   wxString tmp1 = pat;
1080   char *pattern = WXSTRINGCAST(tmp1);
1081   wxString tmp2 = text;
1082   char *str = WXSTRINGCAST(tmp2);
1083     char c;
1084     char *cp;
1085     bool done = FALSE, ret_code, ok;
1086     // Below is for vi fans
1087     const char OB = '{', CB = '}';
1088
1089     // dot_special means '.' only matches '.'
1090     if (dot_special && *str == '.' && *pattern != *str)
1091   return FALSE;
1092
1093     while ((*pattern != '\0') && (!done)
1094     && (((*str=='\0')&&((*pattern==OB)||(*pattern=='*')))||(*str!='\0'))) {
1095   switch (*pattern) {
1096   case '\\':
1097       pattern++;
1098       if (*pattern != '\0')
1099     pattern++;
1100       break;
1101   case '*':
1102       pattern++;
1103       ret_code = FALSE;
1104       while ((*str!='\0')
1105       && (!(ret_code=wxMatchWild(pattern, str++, FALSE))))
1106     /*loop*/;
1107       if (ret_code) {
1108     while (*str != '\0')
1109         str++;
1110     while (*pattern != '\0')
1111         pattern++;
1112       }
1113       break;
1114   case '[':
1115       pattern++;
1116     repeat:
1117       if ((*pattern == '\0') || (*pattern == ']')) {
1118     done = TRUE;
1119     break;
1120       }
1121       if (*pattern == '\\') {
1122     pattern++;
1123     if (*pattern == '\0') {
1124         done = TRUE;
1125         break;
1126     }
1127       }
1128       if (*(pattern + 1) == '-') {
1129     c = *pattern;
1130     pattern += 2;
1131     if (*pattern == ']') {
1132         done = TRUE;
1133         break;
1134     }
1135     if (*pattern == '\\') {
1136         pattern++;
1137         if (*pattern == '\0') {
1138       done = TRUE;
1139       break;
1140         }
1141     }
1142     if ((*str < c) || (*str > *pattern)) {
1143         pattern++;
1144         goto repeat;
1145     }
1146       } else if (*pattern != *str) {
1147     pattern++;
1148     goto repeat;
1149       }
1150       pattern++;
1151       while ((*pattern != ']') && (*pattern != '\0')) {
1152     if ((*pattern == '\\') && (*(pattern + 1) != '\0'))
1153         pattern++;
1154     pattern++;
1155       }
1156       if (*pattern != '\0') {
1157     pattern++, str++;
1158       }
1159       break;
1160   case '?':
1161       pattern++;
1162       str++;
1163       break;
1164   case OB:
1165       pattern++;
1166       while ((*pattern != CB) && (*pattern != '\0')) {
1167     cp = str;
1168     ok = TRUE;
1169     while (ok && (*cp != '\0') && (*pattern != '\0')
1170     &&  (*pattern != ',') && (*pattern != CB)) {
1171         if (*pattern == '\\')
1172       pattern++;
1173         ok = (*pattern++ == *cp++);
1174     }
1175     if (*pattern == '\0') {
1176         ok = FALSE;
1177         done = TRUE;
1178         break;
1179     } else if (ok) {
1180         str = cp;
1181         while ((*pattern != CB) && (*pattern != '\0')) {
1182       if (*++pattern == '\\') {
1183           if (*++pattern == CB)
1184         pattern++;
1185       }
1186         }
1187     } else {
1188         while (*pattern!=CB && *pattern!=',' && *pattern!='\0') {
1189       if (*++pattern == '\\') {
1190                             if (*++pattern == CB || *pattern == ',')
1191         pattern++;
1192       }
1193         }
1194     }
1195     if (*pattern != '\0')
1196         pattern++;
1197       }
1198       break;
1199   default:
1200       if (*str == *pattern) {
1201     str++, pattern++;
1202       } else {
1203     done = TRUE;
1204       }
1205   }
1206     }
1207     while (*pattern == '*')
1208   pattern++;
1209     return ((*str == '\0') && (*pattern == '\0'));
1210 };
1211
1212 #endif // 0
1213
1214 #if 0
1215
1216 // maximum mumber of lines the output console should have
1217 static const WORD MAX_CONSOLE_LINES = 500;
1218
1219 BOOL WINAPI MyConsoleHandler( DWORD dwCtrlType ) {   //  control signal type
1220   FreeConsole();
1221   return TRUE;
1222 }
1223
1224 void wxRedirectIOToConsole()
1225 {
1226     int                        hConHandle;
1227     long                       lStdHandle;
1228     CONSOLE_SCREEN_BUFFER_INFO coninfo;
1229     FILE                       *fp;
1230
1231     // allocate a console for this app
1232     AllocConsole();
1233
1234     // set the screen buffer to be big enough to let us scroll text
1235     GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE),
1236                                &coninfo);
1237     coninfo.dwSize.Y = MAX_CONSOLE_LINES;
1238     SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE),
1239                                coninfo.dwSize);
1240
1241     // redirect unbuffered STDOUT to the console
1242     lStdHandle = (long)GetStdHandle(STD_OUTPUT_HANDLE);
1243     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1244     if(hConHandle <= 0) return;
1245     fp = _fdopen( hConHandle, "w" );
1246     *stdout = *fp;
1247     setvbuf( stdout, NULL, _IONBF, 0 );
1248
1249     // redirect unbuffered STDIN to the console
1250     lStdHandle = (long)GetStdHandle(STD_INPUT_HANDLE);
1251     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1252     if(hConHandle <= 0) return;
1253     fp = _fdopen( hConHandle, "r" );
1254     *stdin = *fp;
1255     setvbuf( stdin, NULL, _IONBF, 0 );
1256
1257     // redirect unbuffered STDERR to the console
1258     lStdHandle = (long)GetStdHandle(STD_ERROR_HANDLE);
1259     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1260     if(hConHandle <= 0) return;
1261     fp = _fdopen( hConHandle, "w" );
1262     *stderr = *fp;
1263     setvbuf( stderr, NULL, _IONBF, 0 );
1264
1265     // make cout, wcout, cin, wcin, wcerr, cerr, wclog and clog
1266     // point to console as well
1267     ios::sync_with_stdio();
1268
1269     SetConsoleCtrlHandler(MyConsoleHandler, TRUE);
1270 }
1271 #else
1272 // Not supported
1273 void wxRedirectIOToConsole()
1274 {
1275 }
1276 #endif
1277
1278