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     DWORD attribs = GetFileAttributes(dir);
 440     return ((attribs != -1) && (attribs & FILE_ATTRIBUTE_DIRECTORY));
 441 #else // Win16
 442     #ifdef __BORLANDC__
 443         struct ffblk fileInfo;
 444     #else
 445         struct find_t fileInfo;
 446     #endif
 447     // In Borland findfirst has a different argument
 448     // ordering from _dos_findfirst. But _dos_findfirst
 449     // _should_ be ok in both MS and Borland... why not?
 450     #ifdef __BORLANDC__
 451         return (findfirst(dir, &fileInfo, _A_SUBDIR) == 0 &&
 452                (fileInfo.ff_attrib & _A_SUBDIR) != 0);
 453     #else
 454         return (_dos_findfirst(dir, _A_SUBDIR, &fileInfo) == 0) &&
 455                ((fileInfo.attrib & _A_SUBDIR) != 0);
 456     #endif
 457 #endif // Win32/16
 458 }
 459
 460 bool wxSetEnv(const wxString& var, const wxChar *value)
 461 {
 462     // some compilers have putenv() or _putenv() or _wputenv() but it's better
 463     // to always use Win32 function directly instead of dealing with them
 464 #if defined(__WIN32__)
 465     if ( !::SetEnvironmentVariable(var, value) )
 466     {
 467         wxLogLastError(_T("SetEnvironmentVariable"));
 468
 469         return FALSE;
 470     }
 471
 472     return TRUE;
 473 #else // no way to set env vars
 474     return FALSE;
 475 #endif
 476 }
 477
 478 // ----------------------------------------------------------------------------
 479 // process management
 480 // ----------------------------------------------------------------------------
 481
 482 int wxKill(long pid, int sig)
 483 {
 484     // TODO use SendMessage(WM_QUIT) and TerminateProcess() if needed
 485
 486     return 0;
 487 }
 488
 489 // Execute a program in an Interactive Shell
 490 bool wxShell(const wxString& command)
 491 {
 492     wxChar *shell = wxGetenv(wxT("COMSPEC"));
 493     if ( !shell )
 494         shell = wxT("\\COMMAND.COM");
 495
 496     wxString cmd;
 497     if ( !command )
 498     {
 499         // just the shell
 500         cmd = shell;
 501     }
 502     else
 503     {
 504         // pass the command to execute to the command processor
 505         cmd.Printf(wxT("%s /c %s"), shell, command.c_str());
 506     }
 507
 508     return wxExecute(cmd, TRUE /* sync */) != 0;
 509 }
 510
 511 // ----------------------------------------------------------------------------
 512 // misc
 513 // ----------------------------------------------------------------------------
 514
 515 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 516 long wxGetFreeMemory()
 517 {
 518 #if defined(__WIN32__) && !defined(__BORLANDC__) && !defined(__TWIN32__)
 519     MEMORYSTATUS memStatus;
 520     memStatus.dwLength = sizeof(MEMORYSTATUS);
 521     GlobalMemoryStatus(&memStatus);
 522     return memStatus.dwAvailPhys;
 523 #else
 524     return (long)GetFreeSpace(0);
 525 #endif
 526 }
 527
 528 // Emit a beeeeeep
 529 void wxBell()
 530 {
 531     ::MessageBeep((UINT)-1);        // default sound
 532 }
 533
 534 wxString wxGetOsDescription()
 535 {
 536 #ifdef __WIN32__
 537     wxString str;
 538
 539     OSVERSIONINFO info;
 540     wxZeroMemory(info);
 541
 542     info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 543     if ( ::GetVersionEx(&info) )
 544     {
 545         switch ( info.dwPlatformId )
 546         {
 547             case VER_PLATFORM_WIN32s:
 548                 str = _("Win32s on Windows 3.1");
 549                 break;
 550
 551             case VER_PLATFORM_WIN32_WINDOWS:
 552                 str.Printf(_("Windows 9%c"),
 553                            info.dwMinorVersion == 0 ? _T('5') : _T('9'));
 554                 if ( !wxIsEmpty(info.szCSDVersion) )
 555                 {
 556                     str << _T(" (") << info.szCSDVersion << _T(')');
 557                 }
 558                 break;
 559
 560             case VER_PLATFORM_WIN32_NT:
 561                 str.Printf(_T("Windows NT %lu.%lu (build %lu"),
 562                            info.dwMajorVersion,
 563                            info.dwMinorVersion,
 564                            info.dwBuildNumber);
 565                 if ( !wxIsEmpty(info.szCSDVersion) )
 566                 {
 567                     str << _T(", ") << info.szCSDVersion;
 568                 }
 569                 str << _T(')');
 570                 break;
 571         }
 572     }
 573     else
 574     {
 575         wxFAIL_MSG( _T("GetVersionEx() failed") ); // should never happen
 576     }
 577
 578     return str;
 579 #else // Win16
 580     return _("Windows 3.1");
 581 #endif // Win32/16
 582 }
 583
 584 int wxGetOsVersion(int *majorVsn, int *minorVsn)
 585 {
 586 #if defined(__WIN32__) && !defined(__SC__)
 587     OSVERSIONINFO info;
 588     wxZeroMemory(info);
 589
 590     info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 591     if ( ::GetVersionEx(&info) )
 592     {
 593         if (majorVsn)
 594             *majorVsn = info.dwMajorVersion;
 595         if (minorVsn)
 596             *minorVsn = info.dwMinorVersion;
 597
 598         switch ( info.dwPlatformId )
 599         {
 600             case VER_PLATFORM_WIN32s:
 601                 return wxWIN32S;
 602
 603             case VER_PLATFORM_WIN32_WINDOWS:
 604                 return wxWIN95;
 605
 606             case VER_PLATFORM_WIN32_NT:
 607                 return wxWINDOWS_NT;
 608         }
 609     }
 610
 611     return wxWINDOWS; // error if we get here, return generic value
 612 #else // Win16
 613     int retValue = wxWINDOWS;
 614     #ifdef __WINDOWS_386__
 615         retValue = wxWIN386;
 616     #else
 617         #if !defined(__WATCOMC__) && !defined(GNUWIN32) && wxUSE_PENWINDOWS
 618             extern HANDLE g_hPenWin;
 619             retValue = g_hPenWin ? wxPENWINDOWS : wxWINDOWS;
 620         #endif
 621     #endif
 622
 623     if (majorVsn)
 624         *majorVsn = 3;
 625     if (minorVsn)
 626         *minorVsn = 1;
 627
 628     return retValue;
 629 #endif
 630 }
 631
 632 // ----------------------------------------------------------------------------
 633 // sleep functions
 634 // ----------------------------------------------------------------------------
 635
 636 #if wxUSE_GUI
 637
 638 // Sleep for nSecs seconds. Attempt a Windows implementation using timers.
 639 static bool gs_inTimer = FALSE;
 640
 641 class wxSleepTimer: public wxTimer
 642 {
 643 public:
 644     virtual void Notify()
 645     {
 646         gs_inTimer = FALSE;
 647         Stop();
 648     }
 649 };
 650
 651 static wxTimer *wxTheSleepTimer = NULL;
 652
 653 void wxUsleep(unsigned long milliseconds)
 654 {
 655 #ifdef __WIN32__
 656     ::Sleep(milliseconds);
 657 #else
 658     if (gs_inTimer)
 659         return;
 660
 661     wxTheSleepTimer = new wxSleepTimer;
 662     gs_inTimer = TRUE;
 663     wxTheSleepTimer->Start(milliseconds);
 664     while (gs_inTimer)
 665     {
 666         if (wxTheApp->Pending())
 667             wxTheApp->Dispatch();
 668     }
 669     delete wxTheSleepTimer;
 670     wxTheSleepTimer = NULL;
 671 #endif
 672 }
 673
 674 void wxSleep(int nSecs)
 675 {
 676     if (gs_inTimer)
 677         return;
 678
 679     wxTheSleepTimer = new wxSleepTimer;
 680     gs_inTimer = TRUE;
 681     wxTheSleepTimer->Start(nSecs*1000);
 682     while (gs_inTimer)
 683     {
 684         if (wxTheApp->Pending())
 685             wxTheApp->Dispatch();
 686     }
 687     delete wxTheSleepTimer;
 688     wxTheSleepTimer = NULL;
 689 }
 690
 691 // Consume all events until no more left
 692 void wxFlushEvents()
 693 {
 694 //  wxYield();
 695 }
 696
 697 #elif defined(__WIN32__) // wxUSE_GUI
 698
 699 void wxUsleep(unsigned long milliseconds)
 700 {
 701     ::Sleep(milliseconds);
 702 }
 703
 704 void wxSleep(int nSecs)
 705 {
 706     wxUsleep(1000*nSecs);
 707 }
 708
 709 #endif // wxUSE_GUI/!wxUSE_GUI
 710
 711 // ----------------------------------------------------------------------------
 712 // deprecated (in favour of wxLog) log functions
 713 // ----------------------------------------------------------------------------
 714
 715 #if wxUSE_GUI
 716
 717 // Output a debug mess., in a system dependent fashion.
 718 void wxDebugMsg(const wxChar *fmt ...)
 719 {
 720   va_list ap;
 721   static wxChar buffer[512];
 722
 723   if (!wxTheApp->GetWantDebugOutput())
 724     return ;
 725
 726   va_start(ap, fmt);
 727
 728   wvsprintf(buffer,fmt,ap) ;
 729   OutputDebugString((LPCTSTR)buffer) ;
 730
 731   va_end(ap);
 732 }
 733
 734 // Non-fatal error: pop up message box and (possibly) continue
 735 void wxError(const wxString& msg, const wxString& title)
 736 {
 737   wxSprintf(wxBuffer, wxT("%s\nContinue?"), WXSTRINGCAST msg);
 738   if (MessageBox(NULL, (LPCTSTR)wxBuffer, (LPCTSTR)WXSTRINGCAST title,
 739              MB_ICONSTOP | MB_YESNO) == IDNO)
 740     wxExit();
 741 }
 742
 743 // Fatal error: pop up message box and abort
 744 void wxFatalError(const wxString& msg, const wxString& title)
 745 {
 746   wxSprintf(wxBuffer, wxT("%s: %s"), WXSTRINGCAST title, WXSTRINGCAST msg);
 747   FatalAppExit(0, (LPCTSTR)wxBuffer);
 748 }
 749
 750 // ----------------------------------------------------------------------------
 751 // functions to work with .INI files
 752 // ----------------------------------------------------------------------------
 753
 754 // Reading and writing resources (eg WIN.INI, .Xdefaults)
 755 #if wxUSE_RESOURCES
 756 bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file)
 757 {
 758   if (file != wxT(""))
 759 // Don't know what the correct cast should be, but it doesn't
 760 // compile in BC++/16-bit without this cast.
 761 #if !defined(__WIN32__)
 762     return (WritePrivateProfileString((const char*) section, (const char*) entry, (const char*) value, (const char*) file) != 0);
 763 #else
 764     return (WritePrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)value, (LPCTSTR)WXSTRINGCAST file) != 0);
 765 #endif
 766   else
 767     return (WriteProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)WXSTRINGCAST value) != 0);
 768 }
 769
 770 bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file)
 771 {
 772     wxString buf;
 773     buf.Printf(wxT("%.4f"), value);
 774
 775     return wxWriteResource(section, entry, buf, file);
 776 }
 777
 778 bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file)
 779 {
 780     wxString buf;
 781     buf.Printf(wxT("%ld"), value);
 782
 783     return wxWriteResource(section, entry, buf, file);
 784 }
 785
 786 bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file)
 787 {
 788     wxString buf;
 789     buf.Printf(wxT("%d"), value);
 790
 791     return wxWriteResource(section, entry, buf, file);
 792 }
 793
 794 bool wxGetResource(const wxString& section, const wxString& entry, wxChar **value, const wxString& file)
 795 {
 796     static const wxChar defunkt[] = wxT("$$default");
 797     if (file != wxT(""))
 798     {
 799         int n = GetPrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
 800                 (LPTSTR)wxBuffer, 1000, (LPCTSTR)WXSTRINGCAST file);
 801         if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
 802             return FALSE;
 803     }
 804     else
 805     {
 806         int n = GetProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
 807                 (LPTSTR)wxBuffer, 1000);
 808         if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
 809             return FALSE;
 810     }
 811     if (*value) delete[] (*value);
 812     *value = copystring(wxBuffer);
 813     return TRUE;
 814 }
 815
 816 bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file)
 817 {
 818     wxChar *s = NULL;
 819     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 820     if (succ)
 821     {
 822         *value = (float)wxStrtod(s, NULL);
 823         delete[] s;
 824         return TRUE;
 825     }
 826     else return FALSE;
 827 }
 828
 829 bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file)
 830 {
 831     wxChar *s = NULL;
 832     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 833     if (succ)
 834     {
 835         *value = wxStrtol(s, NULL, 10);
 836         delete[] s;
 837         return TRUE;
 838     }
 839     else return FALSE;
 840 }
 841
 842 bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file)
 843 {
 844     wxChar *s = NULL;
 845     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 846     if (succ)
 847     {
 848         *value = (int)wxStrtol(s, NULL, 10);
 849         delete[] s;
 850         return TRUE;
 851     }
 852     else return FALSE;
 853 }
 854 #endif // wxUSE_RESOURCES
 855
 856 // ---------------------------------------------------------------------------
 857 // helper functions for showing a "busy" cursor
 858 // ---------------------------------------------------------------------------
 859
 860 static HCURSOR gs_wxBusyCursor = 0;     // new, busy cursor
 861 static HCURSOR gs_wxBusyCursorOld = 0;  // old cursor
 862 static int gs_wxBusyCursorCount = 0;
 863
 864 extern HCURSOR wxGetCurrentBusyCursor()
 865 {
 866     return gs_wxBusyCursor;
 867 }
 868
 869 // Set the cursor to the busy cursor for all windows
 870 void wxBeginBusyCursor(wxCursor *cursor)
 871 {
 872     if ( gs_wxBusyCursorCount++ == 0 )
 873     {
 874         gs_wxBusyCursor = (HCURSOR)cursor->GetHCURSOR();
 875         gs_wxBusyCursorOld = ::SetCursor(gs_wxBusyCursor);
 876     }
 877     //else: nothing to do, already set
 878 }
 879
 880 // Restore cursor to normal
 881 void wxEndBusyCursor()
 882 {
 883     wxCHECK_RET( gs_wxBusyCursorCount > 0,
 884                  wxT("no matching wxBeginBusyCursor() for wxEndBusyCursor()") );
 885
 886     if ( --gs_wxBusyCursorCount == 0 )
 887     {
 888         ::SetCursor(gs_wxBusyCursorOld);
 889
 890         gs_wxBusyCursorOld = 0;
 891     }
 892 }
 893
 894 // TRUE if we're between the above two calls
 895 bool wxIsBusy()
 896 {
 897   return (gs_wxBusyCursorCount > 0);
 898 }
 899
 900 // Check whether this window wants to process messages, e.g. Stop button
 901 // in long calculations.
 902 bool wxCheckForInterrupt(wxWindow *wnd)
 903 {
 904     wxCHECK( wnd, FALSE );
 905
 906     MSG msg;
 907     while ( ::PeekMessage(&msg, GetHwndOf(wnd), 0, 0, PM_REMOVE) )
 908     {
 909         ::TranslateMessage(&msg);
 910         ::DispatchMessage(&msg);
 911     }
 912
 913     return TRUE;
 914 }
 915
 916 // MSW only: get user-defined resource from the .res file.
 917 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
 918
 919 wxChar *wxLoadUserResource(const wxString& resourceName, const wxString& resourceType)
 920 {
 921     HRSRC hResource = ::FindResource(wxGetInstance(), resourceName, resourceType);
 922     if ( hResource == 0 )
 923         return NULL;
 924
 925     HGLOBAL hData = ::LoadResource(wxGetInstance(), hResource);
 926     if ( hData == 0 )
 927         return NULL;
 928
 929     wxChar *theText = (wxChar *)::LockResource(hData);
 930     if ( !theText )
 931         return NULL;
 932
 933     // Not all compilers put a zero at the end of the resource (e.g. BC++ doesn't).
 934     // so we need to find the length of the resource.
 935     int len = ::SizeofResource(wxGetInstance(), hResource);
 936     wxChar  *s = new wxChar[len+1];
 937     wxStrncpy(s,theText,len);
 938     s[len]=0;
 939
 940     // wxChar *s = copystring(theText);
 941
 942     // Obsolete in WIN32
 943 #ifndef __WIN32__
 944     UnlockResource(hData);
 945 #endif
 946
 947     // No need??
 948     //  GlobalFree(hData);
 949
 950     return s;
 951 }
 952
 953 // ----------------------------------------------------------------------------
 954 // get display info
 955 // ----------------------------------------------------------------------------
 956
 957 // See also the wxGetMousePosition in window.cpp
 958 // Deprecated: use wxPoint wxGetMousePosition() instead
 959 void wxGetMousePosition( int* x, int* y )
 960 {
 961     POINT pt;
 962     GetCursorPos( & pt );
 963     if ( x ) *x = pt.x;
 964     if ( y ) *y = pt.y;
 965 };
 966
 967 // Return TRUE if we have a colour display
 968 bool wxColourDisplay()
 969 {
 970     ScreenHDC dc;
 971     int noCols = GetDeviceCaps(dc, NUMCOLORS);
 972
 973     return (noCols == -1) || (noCols > 2);
 974 }
 975
 976 // Returns depth of screen
 977 int wxDisplayDepth()
 978 {
 979     ScreenHDC dc;
 980     return GetDeviceCaps(dc, PLANES) * GetDeviceCaps(dc, BITSPIXEL);
 981 }
 982
 983 // Get size of display
 984 void wxDisplaySize(int *width, int *height)
 985 {
 986     ScreenHDC dc;
 987
 988     if ( width ) *width = GetDeviceCaps(dc, HORZRES);
 989     if ( height ) *height = GetDeviceCaps(dc, VERTRES);
 990 }
 991
 992 void wxDisplaySizeMM(int *width, int *height)
 993 {
 994     ScreenHDC dc;
 995
 996     if ( width ) *width = GetDeviceCaps(dc, HORZSIZE);
 997     if ( height ) *height = GetDeviceCaps(dc, VERTSIZE);
 998 }
 999
1000
1001 // ---------------------------------------------------------------------------
1002 // window information functions
1003 // ---------------------------------------------------------------------------
1004
1005 wxString WXDLLEXPORT wxGetWindowText(WXHWND hWnd)
1006 {
1007     wxString str;
1008     int len = GetWindowTextLength((HWND)hWnd) + 1;
1009     GetWindowText((HWND)hWnd, str.GetWriteBuf(len), len);
1010     str.UngetWriteBuf();
1011
1012     return str;
1013 }
1014
1015 wxString WXDLLEXPORT wxGetWindowClass(WXHWND hWnd)
1016 {
1017     wxString str;
1018
1019     int len = 256; // some starting value
1020
1021     for ( ;; )
1022     {
1023         // as we've #undefined GetClassName we must now manually choose the
1024         // right function to call
1025         int count =
1026
1027         #ifndef __WIN32__
1028             GetClassName
1029         #else // Win32
1030             #ifdef UNICODE
1031                 GetClassNameW
1032             #else // !Unicode
1033                 #ifdef __TWIN32__
1034                     GetClassName
1035                 #else // !Twin32
1036                     GetClassNameA
1037                 #endif // Twin32/!Twin32
1038             #endif // Unicode/ANSI
1039         #endif // Win16/32
1040                                     ((HWND)hWnd, str.GetWriteBuf(len), len);
1041
1042         str.UngetWriteBuf();
1043         if ( count == len )
1044         {
1045             // the class name might have been truncated, retry with larger
1046             // buffer
1047             len *= 2;
1048         }
1049         else
1050         {
1051             break;
1052         }
1053     }
1054
1055     return str;
1056 }
1057
1058 WXWORD WXDLLEXPORT wxGetWindowId(WXHWND hWnd)
1059 {
1060 #ifndef __WIN32__
1061     return GetWindowWord((HWND)hWnd, GWW_ID);
1062 #else // Win32
1063     return GetWindowLong((HWND)hWnd, GWL_ID);
1064 #endif // Win16/32
1065 }
1066
1067 #endif // wxUSE_GUI
1068
1069 #if 0
1070 //------------------------------------------------------------------------
1071 // wild character routines
1072 //------------------------------------------------------------------------
1073
1074 bool wxIsWild( const wxString& pattern )
1075 {
1076   wxString tmp = pattern;
1077   char *pat = WXSTRINGCAST(tmp);
1078     while (*pat) {
1079   switch (*pat++) {
1080   case '?': case '*': case '[': case '{':
1081       return TRUE;
1082   case '\\':
1083       if (!*pat++)
1084     return FALSE;
1085   }
1086     }
1087     return FALSE;
1088 };
1089
1090
1091 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1092 {
1093   wxString tmp1 = pat;
1094   char *pattern = WXSTRINGCAST(tmp1);
1095   wxString tmp2 = text;
1096   char *str = WXSTRINGCAST(tmp2);
1097     char c;
1098     char *cp;
1099     bool done = FALSE, ret_code, ok;
1100     // Below is for vi fans
1101     const char OB = '{', CB = '}';
1102
1103     // dot_special means '.' only matches '.'
1104     if (dot_special && *str == '.' && *pattern != *str)
1105   return FALSE;
1106
1107     while ((*pattern != '\0') && (!done)
1108     && (((*str=='\0')&&((*pattern==OB)||(*pattern=='*')))||(*str!='\0'))) {
1109   switch (*pattern) {
1110   case '\\':
1111       pattern++;
1112       if (*pattern != '\0')
1113     pattern++;
1114       break;
1115   case '*':
1116       pattern++;
1117       ret_code = FALSE;
1118       while ((*str!='\0')
1119       && (!(ret_code=wxMatchWild(pattern, str++, FALSE))))
1120     /*loop*/;
1121       if (ret_code) {
1122     while (*str != '\0')
1123         str++;
1124     while (*pattern != '\0')
1125         pattern++;
1126       }
1127       break;
1128   case '[':
1129       pattern++;
1130     repeat:
1131       if ((*pattern == '\0') || (*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 (*(pattern + 1) == '-') {
1143     c = *pattern;
1144     pattern += 2;
1145     if (*pattern == ']') {
1146         done = TRUE;
1147         break;
1148     }
1149     if (*pattern == '\\') {
1150         pattern++;
1151         if (*pattern == '\0') {
1152       done = TRUE;
1153       break;
1154         }
1155     }
1156     if ((*str < c) || (*str > *pattern)) {
1157         pattern++;
1158         goto repeat;
1159     }
1160       } else if (*pattern != *str) {
1161     pattern++;
1162     goto repeat;
1163       }
1164       pattern++;
1165       while ((*pattern != ']') && (*pattern != '\0')) {
1166     if ((*pattern == '\\') && (*(pattern + 1) != '\0'))
1167         pattern++;
1168     pattern++;
1169       }
1170       if (*pattern != '\0') {
1171     pattern++, str++;
1172       }
1173       break;
1174   case '?':
1175       pattern++;
1176       str++;
1177       break;
1178   case OB:
1179       pattern++;
1180       while ((*pattern != CB) && (*pattern != '\0')) {
1181     cp = str;
1182     ok = TRUE;
1183     while (ok && (*cp != '\0') && (*pattern != '\0')
1184     &&  (*pattern != ',') && (*pattern != CB)) {
1185         if (*pattern == '\\')
1186       pattern++;
1187         ok = (*pattern++ == *cp++);
1188     }
1189     if (*pattern == '\0') {
1190         ok = FALSE;
1191         done = TRUE;
1192         break;
1193     } else if (ok) {
1194         str = cp;
1195         while ((*pattern != CB) && (*pattern != '\0')) {
1196       if (*++pattern == '\\') {
1197           if (*++pattern == CB)
1198         pattern++;
1199       }
1200         }
1201     } else {
1202         while (*pattern!=CB && *pattern!=',' && *pattern!='\0') {
1203       if (*++pattern == '\\') {
1204                             if (*++pattern == CB || *pattern == ',')
1205         pattern++;
1206       }
1207         }
1208     }
1209     if (*pattern != '\0')
1210         pattern++;
1211       }
1212       break;
1213   default:
1214       if (*str == *pattern) {
1215     str++, pattern++;
1216       } else {
1217     done = TRUE;
1218       }
1219   }
1220     }
1221     while (*pattern == '*')
1222   pattern++;
1223     return ((*str == '\0') && (*pattern == '\0'));
1224 };
1225
1226 #endif // 0
1227
1228 #if 0
1229
1230 // maximum mumber of lines the output console should have
1231 static const WORD MAX_CONSOLE_LINES = 500;
1232
1233 BOOL WINAPI MyConsoleHandler( DWORD dwCtrlType ) {   //  control signal type
1234   FreeConsole();
1235   return TRUE;
1236 }
1237
1238 void wxRedirectIOToConsole()
1239 {
1240     int                        hConHandle;
1241     long                       lStdHandle;
1242     CONSOLE_SCREEN_BUFFER_INFO coninfo;
1243     FILE                       *fp;
1244
1245     // allocate a console for this app
1246     AllocConsole();
1247
1248     // set the screen buffer to be big enough to let us scroll text
1249     GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE),
1250                                &coninfo);
1251     coninfo.dwSize.Y = MAX_CONSOLE_LINES;
1252     SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE),
1253                                coninfo.dwSize);
1254
1255     // redirect unbuffered STDOUT to the console
1256     lStdHandle = (long)GetStdHandle(STD_OUTPUT_HANDLE);
1257     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1258     if(hConHandle <= 0) return;
1259     fp = _fdopen( hConHandle, "w" );
1260     *stdout = *fp;
1261     setvbuf( stdout, NULL, _IONBF, 0 );
1262
1263     // redirect unbuffered STDIN to the console
1264     lStdHandle = (long)GetStdHandle(STD_INPUT_HANDLE);
1265     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1266     if(hConHandle <= 0) return;
1267     fp = _fdopen( hConHandle, "r" );
1268     *stdin = *fp;
1269     setvbuf( stdin, NULL, _IONBF, 0 );
1270
1271     // redirect unbuffered STDERR to the console
1272     lStdHandle = (long)GetStdHandle(STD_ERROR_HANDLE);
1273     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1274     if(hConHandle <= 0) return;
1275     fp = _fdopen( hConHandle, "w" );
1276     *stderr = *fp;
1277     setvbuf( stderr, NULL, _IONBF, 0 );
1278
1279     // make cout, wcout, cin, wcin, wcerr, cerr, wclog and clog
1280     // point to console as well
1281     ios::sync_with_stdio();
1282
1283     SetConsoleCtrlHandler(MyConsoleHandler, TRUE);
1284 }
1285 #else
1286 // Not supported
1287 void wxRedirectIOToConsole()
1288 {
1289 }
1290 #endif
1291
1292