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& WXUNUSED(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 != (DWORD)-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 // ----------------------------------------------------------------------------
 461 // env vars
 462 // ----------------------------------------------------------------------------
 463
 464 bool wxGetEnv(const wxString& var, wxString *value)
 465 {
 466     // first get the size of the buffer
 467     DWORD dwRet = ::GetEnvironmentVariable(var, NULL, 0);
 468     if ( !dwRet )
 469     {
 470         // this means that there is no such variable
 471         return FALSE;
 472     }
 473
 474     if ( value )
 475     {
 476         (void)::GetEnvironmentVariable(var, value->GetWriteBuf(dwRet), dwRet);
 477         value->UngetWriteBuf();
 478     }
 479
 480     return TRUE;
 481 }
 482
 483 bool wxSetEnv(const wxString& var, const wxChar *value)
 484 {
 485     // some compilers have putenv() or _putenv() or _wputenv() but it's better
 486     // to always use Win32 function directly instead of dealing with them
 487 #if defined(__WIN32__)
 488     if ( !::SetEnvironmentVariable(var, value) )
 489     {
 490         wxLogLastError(_T("SetEnvironmentVariable"));
 491
 492         return FALSE;
 493     }
 494
 495     return TRUE;
 496 #else // no way to set env vars
 497     return FALSE;
 498 #endif
 499 }
 500
 501 // ----------------------------------------------------------------------------
 502 // process management
 503 // ----------------------------------------------------------------------------
 504
 505 int wxKill(long WXUNUSED(pid), int WXUNUSED(sig))
 506 {
 507     // TODO use SendMessage(WM_QUIT) and TerminateProcess() if needed
 508
 509     return 0;
 510 }
 511
 512 // Execute a program in an Interactive Shell
 513 bool wxShell(const wxString& command)
 514 {
 515     wxChar *shell = wxGetenv(wxT("COMSPEC"));
 516     if ( !shell )
 517         shell = wxT("\\COMMAND.COM");
 518
 519     wxString cmd;
 520     if ( !command )
 521     {
 522         // just the shell
 523         cmd = shell;
 524     }
 525     else
 526     {
 527         // pass the command to execute to the command processor
 528         cmd.Printf(wxT("%s /c %s"), shell, command.c_str());
 529     }
 530
 531     return wxExecute(cmd, TRUE /* sync */) != 0;
 532 }
 533
 534 // ----------------------------------------------------------------------------
 535 // misc
 536 // ----------------------------------------------------------------------------
 537
 538 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 539 long wxGetFreeMemory()
 540 {
 541 #if defined(__WIN32__) && !defined(__BORLANDC__) && !defined(__TWIN32__)
 542     MEMORYSTATUS memStatus;
 543     memStatus.dwLength = sizeof(MEMORYSTATUS);
 544     GlobalMemoryStatus(&memStatus);
 545     return memStatus.dwAvailPhys;
 546 #else
 547     return (long)GetFreeSpace(0);
 548 #endif
 549 }
 550
 551 // Emit a beeeeeep
 552 void wxBell()
 553 {
 554     ::MessageBeep((UINT)-1);        // default sound
 555 }
 556
 557 wxString wxGetOsDescription()
 558 {
 559 #ifdef __WIN32__
 560     wxString str;
 561
 562     OSVERSIONINFO info;
 563     wxZeroMemory(info);
 564
 565     info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 566     if ( ::GetVersionEx(&info) )
 567     {
 568         switch ( info.dwPlatformId )
 569         {
 570             case VER_PLATFORM_WIN32s:
 571                 str = _("Win32s on Windows 3.1");
 572                 break;
 573
 574             case VER_PLATFORM_WIN32_WINDOWS:
 575                 str.Printf(_("Windows 9%c"),
 576                            info.dwMinorVersion == 0 ? _T('5') : _T('8'));
 577                 if ( !wxIsEmpty(info.szCSDVersion) )
 578                 {
 579                     str << _T(" (") << info.szCSDVersion << _T(')');
 580                 }
 581                 break;
 582
 583             case VER_PLATFORM_WIN32_NT:
 584                 str.Printf(_T("Windows NT %lu.%lu (build %lu"),
 585                            info.dwMajorVersion,
 586                            info.dwMinorVersion,
 587                            info.dwBuildNumber);
 588                 if ( !wxIsEmpty(info.szCSDVersion) )
 589                 {
 590                     str << _T(", ") << info.szCSDVersion;
 591                 }
 592                 str << _T(')');
 593                 break;
 594         }
 595     }
 596     else
 597     {
 598         wxFAIL_MSG( _T("GetVersionEx() failed") ); // should never happen
 599     }
 600
 601     return str;
 602 #else // Win16
 603     return _("Windows 3.1");
 604 #endif // Win32/16
 605 }
 606
 607 int wxGetOsVersion(int *majorVsn, int *minorVsn)
 608 {
 609 #if defined(__WIN32__) && !defined(__SC__)
 610     OSVERSIONINFO info;
 611     wxZeroMemory(info);
 612
 613     info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 614     if ( ::GetVersionEx(&info) )
 615     {
 616         if (majorVsn)
 617             *majorVsn = info.dwMajorVersion;
 618         if (minorVsn)
 619             *minorVsn = info.dwMinorVersion;
 620
 621         switch ( info.dwPlatformId )
 622         {
 623             case VER_PLATFORM_WIN32s:
 624                 return wxWIN32S;
 625
 626             case VER_PLATFORM_WIN32_WINDOWS:
 627                 return wxWIN95;
 628
 629             case VER_PLATFORM_WIN32_NT:
 630                 return wxWINDOWS_NT;
 631         }
 632     }
 633
 634     return wxWINDOWS; // error if we get here, return generic value
 635 #else // Win16
 636     int retValue = wxWINDOWS;
 637     #ifdef __WINDOWS_386__
 638         retValue = wxWIN386;
 639     #else
 640         #if !defined(__WATCOMC__) && !defined(GNUWIN32) && wxUSE_PENWINDOWS
 641             extern HANDLE g_hPenWin;
 642             retValue = g_hPenWin ? wxPENWINDOWS : wxWINDOWS;
 643         #endif
 644     #endif
 645
 646     if (majorVsn)
 647         *majorVsn = 3;
 648     if (minorVsn)
 649         *minorVsn = 1;
 650
 651     return retValue;
 652 #endif
 653 }
 654
 655 // ----------------------------------------------------------------------------
 656 // sleep functions
 657 // ----------------------------------------------------------------------------
 658
 659 #if wxUSE_GUI
 660
 661 // Sleep for nSecs seconds. Attempt a Windows implementation using timers.
 662 static bool gs_inTimer = FALSE;
 663
 664 class wxSleepTimer: public wxTimer
 665 {
 666 public:
 667     virtual void Notify()
 668     {
 669         gs_inTimer = FALSE;
 670         Stop();
 671     }
 672 };
 673
 674 static wxTimer *wxTheSleepTimer = NULL;
 675
 676 void wxUsleep(unsigned long milliseconds)
 677 {
 678 #ifdef __WIN32__
 679     ::Sleep(milliseconds);
 680 #else
 681     if (gs_inTimer)
 682         return;
 683
 684     wxTheSleepTimer = new wxSleepTimer;
 685     gs_inTimer = TRUE;
 686     wxTheSleepTimer->Start(milliseconds);
 687     while (gs_inTimer)
 688     {
 689         if (wxTheApp->Pending())
 690             wxTheApp->Dispatch();
 691     }
 692     delete wxTheSleepTimer;
 693     wxTheSleepTimer = NULL;
 694 #endif
 695 }
 696
 697 void wxSleep(int nSecs)
 698 {
 699     if (gs_inTimer)
 700         return;
 701
 702     wxTheSleepTimer = new wxSleepTimer;
 703     gs_inTimer = TRUE;
 704     wxTheSleepTimer->Start(nSecs*1000);
 705     while (gs_inTimer)
 706     {
 707         if (wxTheApp->Pending())
 708             wxTheApp->Dispatch();
 709     }
 710     delete wxTheSleepTimer;
 711     wxTheSleepTimer = NULL;
 712 }
 713
 714 // Consume all events until no more left
 715 void wxFlushEvents()
 716 {
 717 //  wxYield();
 718 }
 719
 720 #elif defined(__WIN32__) // wxUSE_GUI
 721
 722 void wxUsleep(unsigned long milliseconds)
 723 {
 724     ::Sleep(milliseconds);
 725 }
 726
 727 void wxSleep(int nSecs)
 728 {
 729     wxUsleep(1000*nSecs);
 730 }
 731
 732 #endif // wxUSE_GUI/!wxUSE_GUI
 733
 734 // ----------------------------------------------------------------------------
 735 // deprecated (in favour of wxLog) log functions
 736 // ----------------------------------------------------------------------------
 737
 738 #if wxUSE_GUI
 739
 740 // Output a debug mess., in a system dependent fashion.
 741 void wxDebugMsg(const wxChar *fmt ...)
 742 {
 743   va_list ap;
 744   static wxChar buffer[512];
 745
 746   if (!wxTheApp->GetWantDebugOutput())
 747     return ;
 748
 749   va_start(ap, fmt);
 750
 751   wvsprintf(buffer,fmt,ap) ;
 752   OutputDebugString((LPCTSTR)buffer) ;
 753
 754   va_end(ap);
 755 }
 756
 757 // Non-fatal error: pop up message box and (possibly) continue
 758 void wxError(const wxString& msg, const wxString& title)
 759 {
 760   wxSprintf(wxBuffer, wxT("%s\nContinue?"), WXSTRINGCAST msg);
 761   if (MessageBox(NULL, (LPCTSTR)wxBuffer, (LPCTSTR)WXSTRINGCAST title,
 762              MB_ICONSTOP | MB_YESNO) == IDNO)
 763     wxExit();
 764 }
 765
 766 // Fatal error: pop up message box and abort
 767 void wxFatalError(const wxString& msg, const wxString& title)
 768 {
 769   wxSprintf(wxBuffer, wxT("%s: %s"), WXSTRINGCAST title, WXSTRINGCAST msg);
 770   FatalAppExit(0, (LPCTSTR)wxBuffer);
 771 }
 772
 773 // ----------------------------------------------------------------------------
 774 // functions to work with .INI files
 775 // ----------------------------------------------------------------------------
 776
 777 // Reading and writing resources (eg WIN.INI, .Xdefaults)
 778 #if wxUSE_RESOURCES
 779 bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file)
 780 {
 781   if (file != wxT(""))
 782 // Don't know what the correct cast should be, but it doesn't
 783 // compile in BC++/16-bit without this cast.
 784 #if !defined(__WIN32__)
 785     return (WritePrivateProfileString((const char*) section, (const char*) entry, (const char*) value, (const char*) file) != 0);
 786 #else
 787     return (WritePrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)value, (LPCTSTR)WXSTRINGCAST file) != 0);
 788 #endif
 789   else
 790     return (WriteProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)WXSTRINGCAST value) != 0);
 791 }
 792
 793 bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file)
 794 {
 795     wxString buf;
 796     buf.Printf(wxT("%.4f"), value);
 797
 798     return wxWriteResource(section, entry, buf, file);
 799 }
 800
 801 bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file)
 802 {
 803     wxString buf;
 804     buf.Printf(wxT("%ld"), value);
 805
 806     return wxWriteResource(section, entry, buf, file);
 807 }
 808
 809 bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file)
 810 {
 811     wxString buf;
 812     buf.Printf(wxT("%d"), value);
 813
 814     return wxWriteResource(section, entry, buf, file);
 815 }
 816
 817 bool wxGetResource(const wxString& section, const wxString& entry, wxChar **value, const wxString& file)
 818 {
 819     static const wxChar defunkt[] = wxT("$$default");
 820     if (file != wxT(""))
 821     {
 822         int n = GetPrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
 823                 (LPTSTR)wxBuffer, 1000, (LPCTSTR)WXSTRINGCAST file);
 824         if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
 825             return FALSE;
 826     }
 827     else
 828     {
 829         int n = GetProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
 830                 (LPTSTR)wxBuffer, 1000);
 831         if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
 832             return FALSE;
 833     }
 834     if (*value) delete[] (*value);
 835     *value = copystring(wxBuffer);
 836     return TRUE;
 837 }
 838
 839 bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file)
 840 {
 841     wxChar *s = NULL;
 842     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 843     if (succ)
 844     {
 845         *value = (float)wxStrtod(s, NULL);
 846         delete[] s;
 847         return TRUE;
 848     }
 849     else return FALSE;
 850 }
 851
 852 bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file)
 853 {
 854     wxChar *s = NULL;
 855     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 856     if (succ)
 857     {
 858         *value = wxStrtol(s, NULL, 10);
 859         delete[] s;
 860         return TRUE;
 861     }
 862     else return FALSE;
 863 }
 864
 865 bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file)
 866 {
 867     wxChar *s = NULL;
 868     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 869     if (succ)
 870     {
 871         *value = (int)wxStrtol(s, NULL, 10);
 872         delete[] s;
 873         return TRUE;
 874     }
 875     else return FALSE;
 876 }
 877 #endif // wxUSE_RESOURCES
 878
 879 // ---------------------------------------------------------------------------
 880 // helper functions for showing a "busy" cursor
 881 // ---------------------------------------------------------------------------
 882
 883 static HCURSOR gs_wxBusyCursor = 0;     // new, busy cursor
 884 static HCURSOR gs_wxBusyCursorOld = 0;  // old cursor
 885 static int gs_wxBusyCursorCount = 0;
 886
 887 extern HCURSOR wxGetCurrentBusyCursor()
 888 {
 889     return gs_wxBusyCursor;
 890 }
 891
 892 // Set the cursor to the busy cursor for all windows
 893 void wxBeginBusyCursor(wxCursor *cursor)
 894 {
 895     if ( gs_wxBusyCursorCount++ == 0 )
 896     {
 897         gs_wxBusyCursor = (HCURSOR)cursor->GetHCURSOR();
 898         gs_wxBusyCursorOld = ::SetCursor(gs_wxBusyCursor);
 899     }
 900     //else: nothing to do, already set
 901 }
 902
 903 // Restore cursor to normal
 904 void wxEndBusyCursor()
 905 {
 906     wxCHECK_RET( gs_wxBusyCursorCount > 0,
 907                  wxT("no matching wxBeginBusyCursor() for wxEndBusyCursor()") );
 908
 909     if ( --gs_wxBusyCursorCount == 0 )
 910     {
 911         ::SetCursor(gs_wxBusyCursorOld);
 912
 913         gs_wxBusyCursorOld = 0;
 914     }
 915 }
 916
 917 // TRUE if we're between the above two calls
 918 bool wxIsBusy()
 919 {
 920   return (gs_wxBusyCursorCount > 0);
 921 }
 922
 923 // Check whether this window wants to process messages, e.g. Stop button
 924 // in long calculations.
 925 bool wxCheckForInterrupt(wxWindow *wnd)
 926 {
 927     wxCHECK( wnd, FALSE );
 928
 929     MSG msg;
 930     while ( ::PeekMessage(&msg, GetHwndOf(wnd), 0, 0, PM_REMOVE) )
 931     {
 932         ::TranslateMessage(&msg);
 933         ::DispatchMessage(&msg);
 934     }
 935
 936     return TRUE;
 937 }
 938
 939 // MSW only: get user-defined resource from the .res file.
 940 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
 941
 942 wxChar *wxLoadUserResource(const wxString& resourceName, const wxString& resourceType)
 943 {
 944     HRSRC hResource = ::FindResource(wxGetInstance(), resourceName, resourceType);
 945     if ( hResource == 0 )
 946         return NULL;
 947
 948     HGLOBAL hData = ::LoadResource(wxGetInstance(), hResource);
 949     if ( hData == 0 )
 950         return NULL;
 951
 952     wxChar *theText = (wxChar *)::LockResource(hData);
 953     if ( !theText )
 954         return NULL;
 955
 956     // Not all compilers put a zero at the end of the resource (e.g. BC++ doesn't).
 957     // so we need to find the length of the resource.
 958     int len = ::SizeofResource(wxGetInstance(), hResource);
 959     wxChar  *s = new wxChar[len+1];
 960     wxStrncpy(s,theText,len);
 961     s[len]=0;
 962
 963     // wxChar *s = copystring(theText);
 964
 965     // Obsolete in WIN32
 966 #ifndef __WIN32__
 967     UnlockResource(hData);
 968 #endif
 969
 970     // No need??
 971     //  GlobalFree(hData);
 972
 973     return s;
 974 }
 975
 976 // ----------------------------------------------------------------------------
 977 // get display info
 978 // ----------------------------------------------------------------------------
 979
 980 // See also the wxGetMousePosition in window.cpp
 981 // Deprecated: use wxPoint wxGetMousePosition() instead
 982 void wxGetMousePosition( int* x, int* y )
 983 {
 984     POINT pt;
 985     GetCursorPos( & pt );
 986     if ( x ) *x = pt.x;
 987     if ( y ) *y = pt.y;
 988 };
 989
 990 // Return TRUE if we have a colour display
 991 bool wxColourDisplay()
 992 {
 993     // this function is called from wxDC ctor so it is called a *lot* of times
 994     // hence we optimize it a bit but doign the check only once
 995     //
 996     // this should be MT safe as only the GUI thread (holding the GUI mutex)
 997     // can call us
 998     static int s_isColour = -1;
 999
1000     if ( s_isColour == -1 )
1001     {
1002         ScreenHDC dc;
1003         int noCols = ::GetDeviceCaps(dc, NUMCOLORS);
1004
1005         s_isColour = (noCols == -1) || (noCols > 2);
1006     }
1007
1008     return s_isColour != 0;
1009 }
1010
1011 // Returns depth of screen
1012 int wxDisplayDepth()
1013 {
1014     ScreenHDC dc;
1015     return GetDeviceCaps(dc, PLANES) * GetDeviceCaps(dc, BITSPIXEL);
1016 }
1017
1018 // Get size of display
1019 void wxDisplaySize(int *width, int *height)
1020 {
1021     ScreenHDC dc;
1022
1023     if ( width ) *width = GetDeviceCaps(dc, HORZRES);
1024     if ( height ) *height = GetDeviceCaps(dc, VERTRES);
1025 }
1026
1027 void wxDisplaySizeMM(int *width, int *height)
1028 {
1029     ScreenHDC dc;
1030
1031     if ( width ) *width = GetDeviceCaps(dc, HORZSIZE);
1032     if ( height ) *height = GetDeviceCaps(dc, VERTSIZE);
1033 }
1034
1035 void wxClientDisplayRect(int *x, int *y, int *width, int *height)
1036 {
1037     // Determine the desktop dimensions minus the taskbar and any other
1038     // special decorations...
1039     RECT r;
1040     SystemParametersInfo(SPI_GETWORKAREA, 0, &r, 0);
1041     if (x)      *x = r.left;
1042     if (y)      *y = r.top;
1043     if (width)  *width = r.right - r.left;
1044     if (height) *height = r.bottom - r.top;
1045 }
1046
1047
1048 // ---------------------------------------------------------------------------
1049 // window information functions
1050 // ---------------------------------------------------------------------------
1051
1052 wxString WXDLLEXPORT wxGetWindowText(WXHWND hWnd)
1053 {
1054     wxString str;
1055     int len = GetWindowTextLength((HWND)hWnd) + 1;
1056     GetWindowText((HWND)hWnd, str.GetWriteBuf(len), len);
1057     str.UngetWriteBuf();
1058
1059     return str;
1060 }
1061
1062 wxString WXDLLEXPORT wxGetWindowClass(WXHWND hWnd)
1063 {
1064     wxString str;
1065
1066     int len = 256; // some starting value
1067
1068     for ( ;; )
1069     {
1070         // as we've #undefined GetClassName we must now manually choose the
1071         // right function to call
1072         int count =
1073
1074         #ifndef __WIN32__
1075             GetClassName
1076         #else // Win32
1077             #ifdef UNICODE
1078                 GetClassNameW
1079             #else // !Unicode
1080                 #ifdef __TWIN32__
1081                     GetClassName
1082                 #else // !Twin32
1083                     GetClassNameA
1084                 #endif // Twin32/!Twin32
1085             #endif // Unicode/ANSI
1086         #endif // Win16/32
1087                                     ((HWND)hWnd, str.GetWriteBuf(len), len);
1088
1089         str.UngetWriteBuf();
1090         if ( count == len )
1091         {
1092             // the class name might have been truncated, retry with larger
1093             // buffer
1094             len *= 2;
1095         }
1096         else
1097         {
1098             break;
1099         }
1100     }
1101
1102     return str;
1103 }
1104
1105 WXWORD WXDLLEXPORT wxGetWindowId(WXHWND hWnd)
1106 {
1107 #ifndef __WIN32__
1108     return (WXWORD)GetWindowWord((HWND)hWnd, GWW_ID);
1109 #else // Win32
1110     return (WXWORD)GetWindowLong((HWND)hWnd, GWL_ID);
1111 #endif // Win16/32
1112 }
1113
1114 #endif // wxUSE_GUI
1115
1116 #if 0
1117 //------------------------------------------------------------------------
1118 // wild character routines
1119 //------------------------------------------------------------------------
1120
1121 bool wxIsWild( const wxString& pattern )
1122 {
1123   wxString tmp = pattern;
1124   char *pat = WXSTRINGCAST(tmp);
1125     while (*pat) {
1126   switch (*pat++) {
1127   case '?': case '*': case '[': case '{':
1128       return TRUE;
1129   case '\\':
1130       if (!*pat++)
1131     return FALSE;
1132   }
1133     }
1134     return FALSE;
1135 };
1136
1137
1138 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
1139 {
1140   wxString tmp1 = pat;
1141   char *pattern = WXSTRINGCAST(tmp1);
1142   wxString tmp2 = text;
1143   char *str = WXSTRINGCAST(tmp2);
1144     char c;
1145     char *cp;
1146     bool done = FALSE, ret_code, ok;
1147     // Below is for vi fans
1148     const char OB = '{', CB = '}';
1149
1150     // dot_special means '.' only matches '.'
1151     if (dot_special && *str == '.' && *pattern != *str)
1152   return FALSE;
1153
1154     while ((*pattern != '\0') && (!done)
1155     && (((*str=='\0')&&((*pattern==OB)||(*pattern=='*')))||(*str!='\0'))) {
1156   switch (*pattern) {
1157   case '\\':
1158       pattern++;
1159       if (*pattern != '\0')
1160     pattern++;
1161       break;
1162   case '*':
1163       pattern++;
1164       ret_code = FALSE;
1165       while ((*str!='\0')
1166       && (!(ret_code=wxMatchWild(pattern, str++, FALSE))))
1167     /*loop*/;
1168       if (ret_code) {
1169     while (*str != '\0')
1170         str++;
1171     while (*pattern != '\0')
1172         pattern++;
1173       }
1174       break;
1175   case '[':
1176       pattern++;
1177     repeat:
1178       if ((*pattern == '\0') || (*pattern == ']')) {
1179     done = TRUE;
1180     break;
1181       }
1182       if (*pattern == '\\') {
1183     pattern++;
1184     if (*pattern == '\0') {
1185         done = TRUE;
1186         break;
1187     }
1188       }
1189       if (*(pattern + 1) == '-') {
1190     c = *pattern;
1191     pattern += 2;
1192     if (*pattern == ']') {
1193         done = TRUE;
1194         break;
1195     }
1196     if (*pattern == '\\') {
1197         pattern++;
1198         if (*pattern == '\0') {
1199       done = TRUE;
1200       break;
1201         }
1202     }
1203     if ((*str < c) || (*str > *pattern)) {
1204         pattern++;
1205         goto repeat;
1206     }
1207       } else if (*pattern != *str) {
1208     pattern++;
1209     goto repeat;
1210       }
1211       pattern++;
1212       while ((*pattern != ']') && (*pattern != '\0')) {
1213     if ((*pattern == '\\') && (*(pattern + 1) != '\0'))
1214         pattern++;
1215     pattern++;
1216       }
1217       if (*pattern != '\0') {
1218     pattern++, str++;
1219       }
1220       break;
1221   case '?':
1222       pattern++;
1223       str++;
1224       break;
1225   case OB:
1226       pattern++;
1227       while ((*pattern != CB) && (*pattern != '\0')) {
1228     cp = str;
1229     ok = TRUE;
1230     while (ok && (*cp != '\0') && (*pattern != '\0')
1231     &&  (*pattern != ',') && (*pattern != CB)) {
1232         if (*pattern == '\\')
1233       pattern++;
1234         ok = (*pattern++ == *cp++);
1235     }
1236     if (*pattern == '\0') {
1237         ok = FALSE;
1238         done = TRUE;
1239         break;
1240     } else if (ok) {
1241         str = cp;
1242         while ((*pattern != CB) && (*pattern != '\0')) {
1243       if (*++pattern == '\\') {
1244           if (*++pattern == CB)
1245         pattern++;
1246       }
1247         }
1248     } else {
1249         while (*pattern!=CB && *pattern!=',' && *pattern!='\0') {
1250       if (*++pattern == '\\') {
1251                             if (*++pattern == CB || *pattern == ',')
1252         pattern++;
1253       }
1254         }
1255     }
1256     if (*pattern != '\0')
1257         pattern++;
1258       }
1259       break;
1260   default:
1261       if (*str == *pattern) {
1262     str++, pattern++;
1263       } else {
1264     done = TRUE;
1265       }
1266   }
1267     }
1268     while (*pattern == '*')
1269   pattern++;
1270     return ((*str == '\0') && (*pattern == '\0'));
1271 };
1272
1273 #endif // 0
1274
1275 #if 0
1276
1277 // maximum mumber of lines the output console should have
1278 static const WORD MAX_CONSOLE_LINES = 500;
1279
1280 BOOL WINAPI MyConsoleHandler( DWORD dwCtrlType ) {   //  control signal type
1281   FreeConsole();
1282   return TRUE;
1283 }
1284
1285 void wxRedirectIOToConsole()
1286 {
1287     int                        hConHandle;
1288     long                       lStdHandle;
1289     CONSOLE_SCREEN_BUFFER_INFO coninfo;
1290     FILE                       *fp;
1291
1292     // allocate a console for this app
1293     AllocConsole();
1294
1295     // set the screen buffer to be big enough to let us scroll text
1296     GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE),
1297                                &coninfo);
1298     coninfo.dwSize.Y = MAX_CONSOLE_LINES;
1299     SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE),
1300                                coninfo.dwSize);
1301
1302     // redirect unbuffered STDOUT to the console
1303     lStdHandle = (long)GetStdHandle(STD_OUTPUT_HANDLE);
1304     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1305     if(hConHandle <= 0) return;
1306     fp = _fdopen( hConHandle, "w" );
1307     *stdout = *fp;
1308     setvbuf( stdout, NULL, _IONBF, 0 );
1309
1310     // redirect unbuffered STDIN to the console
1311     lStdHandle = (long)GetStdHandle(STD_INPUT_HANDLE);
1312     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1313     if(hConHandle <= 0) return;
1314     fp = _fdopen( hConHandle, "r" );
1315     *stdin = *fp;
1316     setvbuf( stdin, NULL, _IONBF, 0 );
1317
1318     // redirect unbuffered STDERR to the console
1319     lStdHandle = (long)GetStdHandle(STD_ERROR_HANDLE);
1320     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1321     if(hConHandle <= 0) return;
1322     fp = _fdopen( hConHandle, "w" );
1323     *stderr = *fp;
1324     setvbuf( stderr, NULL, _IONBF, 0 );
1325
1326     // make cout, wcout, cin, wcin, wcerr, cerr, wclog and clog
1327     // point to console as well
1328     ios::sync_with_stdio();
1329
1330     SetConsoleCtrlHandler(MyConsoleHandler, TRUE);
1331 }
1332 #else
1333 // Not supported
1334 void wxRedirectIOToConsole()
1335 {
1336 }
1337 #endif
1338
1339