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