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