src/msw/utils.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #ifdef __GNUG__
  13 // #pragma implementation "utils.h"   // Note: this is done in utilscmn.cpp now.
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/setup.h"
  25     #include "wx/utils.h"
  26     #include "wx/app.h"
  27     #include "wx/cursor.h"
  28 #endif  //WX_PRECOMP
  29
  30 #include "wx/msw/private.h"
  31 #include "wx/timer.h"
  32 #include "wx/intl.h"
  33
  34 #include <windows.h>
  35
  36 #include <ctype.h>
  37
  38 #if !defined(__GNUWIN32__) && !defined(__WXWINE__) && !defined(__SALFORDC__)
  39     #include <direct.h>
  40
  41     #ifndef __MWERKS__
  42         #include <dos.h>
  43     #endif
  44 #endif  //GNUWIN32
  45
  46 #if defined(__GNUWIN32__) && !defined(__TWIN32__)
  47     #include <sys/unistd.h>
  48     #include <sys/stat.h>
  49 #endif  //GNUWIN32
  50
  51 #include "wx/log.h"
  52
  53 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  54                     // this (3.1 I believe) and how to test for it.
  55                     // If this works for Borland 4.0 as well, then no worries.
  56     #include <dir.h>
  57 #endif
  58
  59 // VZ: there is some code using NetXXX() functions to get the full user name:
  60 //     I don't think it's a good idea because they don't work under Win95 and
  61 //     seem to return the same as wxGetUserId() under NT. If you really want
  62 //     to use them, just #define USE_NET_API
  63 #undef USE_NET_API
  64
  65 #ifdef USE_NET_API
  66     #include <lm.h>
  67 #endif // USE_NET_API
  68
  69 #if defined(__WIN32__) && !defined(__WXWINE__)
  70     #include <io.h>
  71
  72     #ifndef __GNUWIN32__
  73         #include <shellapi.h>
  74     #endif
  75 #endif
  76
  77 #include <stdio.h>
  78 #include <stdlib.h>
  79 #include <string.h>
  80 #ifndef __WATCOMC__
  81     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  82         #include <errno.h>
  83     #endif
  84 #endif
  85 #include <stdarg.h>
  86
  87 //// BEGIN for console support: VC++ only
  88 #ifdef __VISUALC__
  89
  90 #include "wx/msw/msvcrt.h"
  91
  92 #include <fcntl.h>
  93
  94 #include "wx/ioswrap.h"
  95
  96 #if wxUSE_IOSTREAMH
  97 // N.B. BC++ doesn't have istream.h, ostream.h
  98 #  include <io.h>
  99 #  include <fstream.h>
 100 #else
 101 #  include <fstream>
 102 #endif
 103
 104 /* Need to undef new if including crtdbg.h */
 105 #  ifdef new
 106 #  undef new
 107 #  endif
 108
 109 #ifndef __WIN16__
 110 #  include <crtdbg.h>
 111 #endif
 112
 113 #  if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
 114 #  define new new(__FILE__,__LINE__)
 115 #  endif
 116
 117 #endif
 118   // __VISUALC__
 119 /// END for console support
 120
 121 // In the WIN.INI file
 122 static const wxChar WX_SECTION[] = wxT("wxWindows");
 123 static const wxChar eHOSTNAME[]  = wxT("HostName");
 124 static const wxChar eUSERID[]    = wxT("UserId");
 125 static const wxChar eUSERNAME[]  = wxT("UserName");
 126
 127 // For the following functions we SHOULD fill in support
 128 // for Windows-NT (which I don't know) as I assume it begin
 129 // a POSIX Unix (so claims MS) that it has some special
 130 // functions beyond those provided by WinSock
 131
 132 // Get full hostname (eg. DoDo.BSn-Germany.crg.de)
 133 bool wxGetHostName(wxChar *buf, int maxSize)
 134 {
 135 #if defined(__WIN32__) && !defined(__TWIN32__)
 136   DWORD nSize = maxSize;
 137   return (::GetComputerName(buf, &nSize) != 0);
 138 #else
 139   wxChar *sysname;
 140   const wxChar *default_host = wxT("noname");
 141
 142   if ((sysname = wxGetenv(wxT("SYSTEM_NAME"))) == NULL) {
 143      GetProfileString(WX_SECTION, eHOSTNAME, default_host, buf, maxSize - 1);
 144   } else
 145     wxStrncpy(buf, sysname, maxSize - 1);
 146   buf[maxSize] = wxT('\0');
 147   return *buf ? TRUE : FALSE;
 148 #endif
 149 }
 150
 151 // Get user ID e.g. jacs
 152 bool wxGetUserId(wxChar *buf, int maxSize)
 153 {
 154 #if defined(__WIN32__) && !defined(__win32s__) && !defined(__TWIN32__)
 155     DWORD nSize = maxSize;
 156     if ( ::GetUserName(buf, &nSize) == 0 )
 157     {
 158         // actually, it does happen on Win9x if the user didn't log on
 159         DWORD res = ::GetEnvironmentVariable(wxT("username"), buf, maxSize);
 160         if ( res == 0 )
 161         {
 162             // not found
 163             return FALSE;
 164         }
 165     }
 166
 167     return TRUE;
 168 #else   // Win16 or Win32s
 169   wxChar *user;
 170   const wxChar *default_id = wxT("anonymous");
 171
 172   // Can't assume we have NIS (PC-NFS) or some other ID daemon
 173   // So we ...
 174   if (  (user = wxGetenv(wxT("USER"))) == NULL &&
 175         (user = wxGetenv(wxT("LOGNAME"))) == NULL )
 176   {
 177      // Use wxWindows configuration data (comming soon)
 178      GetProfileString(WX_SECTION, eUSERID, default_id, buf, maxSize - 1);
 179   }
 180   else
 181   {
 182     wxStrncpy(buf, user, maxSize - 1);
 183   }
 184
 185   return *buf ? TRUE : FALSE;
 186 #endif
 187 }
 188
 189 // Get user name e.g. Julian Smart
 190 bool wxGetUserName(wxChar *buf, int maxSize)
 191 {
 192 #if wxUSE_PENWINDOWS && !defined(__WATCOMC__) && !defined(__GNUWIN32__)
 193   extern HANDLE g_hPenWin; // PenWindows Running?
 194   if (g_hPenWin)
 195   {
 196     // PenWindows Does have a user concept!
 197     // Get the current owner of the recognizer
 198     GetPrivateProfileString("Current", "User", default_name, wxBuffer, maxSize - 1, "PENWIN.INI");
 199     strncpy(buf, wxBuffer, maxSize - 1);
 200   }
 201   else
 202 #endif
 203   {
 204 #ifdef USE_NET_API
 205     CHAR szUserName[256];
 206     if ( !wxGetUserId(szUserName, WXSIZEOF(szUserName)) )
 207         return FALSE;
 208
 209     // TODO how to get the domain name?
 210     CHAR *szDomain = "";
 211
 212     // the code is based on the MSDN example (also see KB article Q119670)
 213     WCHAR wszUserName[256];          // Unicode user name
 214     WCHAR wszDomain[256];
 215     LPBYTE ComputerName;
 216
 217     USER_INFO_2 *ui2;         // User structure
 218
 219     // Convert ANSI user name and domain to Unicode
 220     MultiByteToWideChar( CP_ACP, 0, szUserName, strlen(szUserName)+1,
 221                           wszUserName, WXSIZEOF(wszUserName) );
 222     MultiByteToWideChar( CP_ACP, 0, szDomain, strlen(szDomain)+1,
 223                          wszDomain, WXSIZEOF(wszDomain) );
 224
 225     // Get the computer name of a DC for the domain.
 226     if ( NetGetDCName( NULL, wszDomain, &ComputerName ) != NERR_Success )
 227     {
 228         wxLogError(wxT("Can not find domain controller"));
 229
 230         goto error;
 231     }
 232
 233     // Look up the user on the DC
 234     NET_API_STATUS status = NetUserGetInfo( (LPWSTR)ComputerName,
 235                                             (LPWSTR)&wszUserName,
 236                                             2, // level - we want USER_INFO_2
 237                                             (LPBYTE *) &ui2 );
 238     switch ( status )
 239     {
 240         case NERR_Success:
 241             // ok
 242             break;
 243
 244         case NERR_InvalidComputer:
 245             wxLogError(wxT("Invalid domain controller name."));
 246
 247             goto error;
 248
 249         case NERR_UserNotFound:
 250             wxLogError(wxT("Invalid user name '%s'."), szUserName);
 251
 252             goto error;
 253
 254         default:
 255             wxLogSysError(wxT("Can't get information about user"));
 256
 257             goto error;
 258     }
 259
 260     // Convert the Unicode full name to ANSI
 261     WideCharToMultiByte( CP_ACP, 0, ui2->usri2_full_name, -1,
 262                          buf, maxSize, NULL, NULL );
 263
 264     return TRUE;
 265
 266 error:
 267   wxLogError(wxT("Couldn't look up full user name."));
 268
 269   return FALSE;
 270 #else  // !USE_NET_API
 271     // Could use NIS, MS-Mail or other site specific programs
 272     // Use wxWindows configuration data
 273     bool ok = GetProfileString(WX_SECTION, eUSERNAME, wxT(""), buf, maxSize - 1) != 0;
 274     if ( !ok )
 275     {
 276         ok = wxGetUserId(buf, maxSize);
 277     }
 278
 279     if ( !ok )
 280     {
 281         wxStrncpy(buf, wxT("Unknown User"), maxSize);
 282     }
 283 #endif // Win32/16
 284   }
 285
 286   return TRUE;
 287 }
 288
 289 int wxKill(long pid, int sig)
 290 {
 291   return 0;
 292 }
 293
 294 //
 295 // Execute a program in an Interactive Shell
 296 //
 297 bool
 298 wxShell(const wxString& command)
 299 {
 300   wxChar *shell;
 301   if ((shell = wxGetenv(wxT("COMSPEC"))) == NULL)
 302     shell = wxT("\\COMMAND.COM");
 303
 304   wxChar tmp[255];
 305   if (command != wxT(""))
 306     wxSprintf(tmp, wxT("%s /c %s"), shell, WXSTRINGCAST command);
 307   else
 308     wxStrcpy(tmp, shell);
 309
 310   return (wxExecute((wxChar *)tmp, FALSE) != 0);
 311 }
 312
 313 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 314 long wxGetFreeMemory()
 315 {
 316 #if defined(__WIN32__) && !defined(__BORLANDC__) && !defined(__TWIN32__)
 317   MEMORYSTATUS memStatus;
 318   memStatus.dwLength = sizeof(MEMORYSTATUS);
 319   GlobalMemoryStatus(&memStatus);
 320   return memStatus.dwAvailPhys;
 321 #else
 322   return (long)GetFreeSpace(0);
 323 #endif
 324 }
 325
 326 // Sleep for nSecs seconds. Attempt a Windows implementation using timers.
 327 static bool inTimer = FALSE;
 328 class wxSleepTimer: public wxTimer
 329 {
 330  public:
 331   inline void Notify()
 332   {
 333     inTimer = FALSE;
 334     Stop();
 335   }
 336 };
 337
 338 static wxTimer *wxTheSleepTimer = NULL;
 339
 340 void wxUsleep(unsigned long milliseconds)
 341 {
 342 #ifdef __WIN32__
 343     ::Sleep(milliseconds);
 344 #else
 345   if (inTimer)
 346     return;
 347
 348   wxTheSleepTimer = new wxSleepTimer;
 349   inTimer = TRUE;
 350   wxTheSleepTimer->Start(milliseconds);
 351   while (inTimer)
 352   {
 353     if (wxTheApp->Pending())
 354       wxTheApp->Dispatch();
 355   }
 356   delete wxTheSleepTimer;
 357   wxTheSleepTimer = NULL;
 358 #endif
 359 }
 360
 361 void wxSleep(int nSecs)
 362 {
 363 #if 0 // WIN32 hangs app
 364   Sleep( 1000*nSecs );
 365 #else
 366   if (inTimer)
 367     return;
 368
 369   wxTheSleepTimer = new wxSleepTimer;
 370   inTimer = TRUE;
 371   wxTheSleepTimer->Start(nSecs*1000);
 372   while (inTimer)
 373   {
 374     if (wxTheApp->Pending())
 375       wxTheApp->Dispatch();
 376   }
 377   delete wxTheSleepTimer;
 378   wxTheSleepTimer = NULL;
 379 #endif
 380 }
 381
 382 // Consume all events until no more left
 383 void wxFlushEvents()
 384 {
 385 //  wxYield();
 386 }
 387
 388 // Output a debug mess., in a system dependent fashion.
 389 void wxDebugMsg(const wxChar *fmt ...)
 390 {
 391   va_list ap;
 392   static wxChar buffer[512];
 393
 394   if (!wxTheApp->GetWantDebugOutput())
 395     return ;
 396
 397   va_start(ap, fmt);
 398
 399   wvsprintf(buffer,fmt,ap) ;
 400   OutputDebugString((LPCTSTR)buffer) ;
 401
 402   va_end(ap);
 403 }
 404
 405 // Non-fatal error: pop up message box and (possibly) continue
 406 void wxError(const wxString& msg, const wxString& title)
 407 {
 408   wxSprintf(wxBuffer, wxT("%s\nContinue?"), WXSTRINGCAST msg);
 409   if (MessageBox(NULL, (LPCTSTR)wxBuffer, (LPCTSTR)WXSTRINGCAST title,
 410              MB_ICONSTOP | MB_YESNO) == IDNO)
 411     wxExit();
 412 }
 413
 414 // Fatal error: pop up message box and abort
 415 void wxFatalError(const wxString& msg, const wxString& title)
 416 {
 417   wxSprintf(wxBuffer, wxT("%s: %s"), WXSTRINGCAST title, WXSTRINGCAST msg);
 418   FatalAppExit(0, (LPCTSTR)wxBuffer);
 419 }
 420
 421 // Emit a beeeeeep
 422 void wxBell()
 423 {
 424     // Removed by RD because IHMO syncronous sound is a Bad Thing.  MessageBeep
 425     // will do a similar thing anyway if there is no sound card...
 426 //#ifdef __WIN32__
 427 //  Beep(1000,1000) ; // 1kHz during 1 sec.
 428 //#else
 429   MessageBeep((UINT)-1) ;
 430 //#endif
 431 }
 432
 433 // Chris Breeze 27/5/98: revised WIN32 code to
 434 // detect WindowsNT correctly
 435 int wxGetOsVersion(int *majorVsn, int *minorVsn)
 436 {
 437   if (majorVsn) *majorVsn = 0;
 438   if (minorVsn) *minorVsn = 0;
 439
 440 #if defined(__WIN32__) && !defined(__SC__)
 441   OSVERSIONINFO info;
 442   memset(&info, 0, sizeof(OSVERSIONINFO));
 443   info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 444   if (GetVersionEx(&info))
 445   {
 446     if (majorVsn) *majorVsn = info.dwMajorVersion;
 447     if (minorVsn) *minorVsn = info.dwMinorVersion;
 448     switch (info.dwPlatformId)
 449   {
 450   case VER_PLATFORM_WIN32s:
 451     return wxWIN32S;
 452     break;
 453   case VER_PLATFORM_WIN32_WINDOWS:
 454     return wxWIN95;
 455     break;
 456   case VER_PLATFORM_WIN32_NT:
 457     return wxWINDOWS_NT;
 458     break;
 459   }
 460   }
 461   return wxWINDOWS; // error if we get here, return generic value
 462 #else
 463   // Win16 code...
 464   int retValue = 0;
 465 #  ifdef __WINDOWS_386__
 466   retValue = wxWIN386;
 467 #  else
 468 #    if !defined(__WATCOMC__) && !defined(GNUWIN32) && wxUSE_PENWINDOWS
 469   extern HANDLE g_hPenWin;
 470   retValue = g_hPenWin ? wxPENWINDOWS : wxWINDOWS ;
 471 #    endif
 472 #  endif
 473   // @@@@ To be completed. I don't have the manual here...
 474   if (majorVsn) *majorVsn = 3 ;
 475   if (minorVsn) *minorVsn = 1 ;
 476   return retValue ;
 477 #endif
 478 }
 479
 480 // Reading and writing resources (eg WIN.INI, .Xdefaults)
 481 #if wxUSE_RESOURCES
 482 bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file)
 483 {
 484   if (file != wxT(""))
 485 // Don't know what the correct cast should be, but it doesn't
 486 // compile in BC++/16-bit without this cast.
 487 #if !defined(__WIN32__)
 488     return (WritePrivateProfileString((const char*) section, (const char*) entry, (const char*) value, (const char*) file) != 0);
 489 #else
 490     return (WritePrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)value, (LPCTSTR)WXSTRINGCAST file) != 0);
 491 #endif
 492   else
 493     return (WriteProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)WXSTRINGCAST value) != 0);
 494 }
 495
 496 bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file)
 497 {
 498   wxChar buf[50];
 499   wxSprintf(buf, wxT("%.4f"), value);
 500   return wxWriteResource(section, entry, buf, file);
 501 }
 502
 503 bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file)
 504 {
 505   wxChar buf[50];
 506   wxSprintf(buf, wxT("%ld"), value);
 507   return wxWriteResource(section, entry, buf, file);
 508 }
 509
 510 bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file)
 511 {
 512   wxChar buf[50];
 513   wxSprintf(buf, wxT("%d"), value);
 514   return wxWriteResource(section, entry, buf, file);
 515 }
 516
 517 bool wxGetResource(const wxString& section, const wxString& entry, wxChar **value, const wxString& file)
 518 {
 519   static const wxChar defunkt[] = wxT("$$default");
 520   if (file != wxT(""))
 521   {
 522     int n = GetPrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
 523                                     (LPTSTR)wxBuffer, 1000, (LPCTSTR)WXSTRINGCAST file);
 524     if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
 525      return FALSE;
 526   }
 527   else
 528   {
 529     int n = GetProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
 530                                     (LPTSTR)wxBuffer, 1000);
 531     if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
 532       return FALSE;
 533   }
 534   if (*value) delete[] (*value);
 535       *value = copystring(wxBuffer);
 536       return TRUE;
 537     }
 538
 539 bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file)
 540 {
 541   wxChar *s = NULL;
 542   bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 543   if (succ)
 544   {
 545     *value = (float)wxStrtod(s, NULL);
 546     delete[] s;
 547     return TRUE;
 548   }
 549   else return FALSE;
 550 }
 551
 552 bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file)
 553 {
 554   wxChar *s = NULL;
 555   bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 556   if (succ)
 557   {
 558     *value = wxStrtol(s, NULL, 10);
 559     delete[] s;
 560     return TRUE;
 561   }
 562   else return FALSE;
 563 }
 564
 565 bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file)
 566 {
 567   wxChar *s = NULL;
 568   bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
 569   if (succ)
 570   {
 571     *value = (int)wxStrtol(s, NULL, 10);
 572     delete[] s;
 573     return TRUE;
 574   }
 575   else return FALSE;
 576 }
 577 #endif // wxUSE_RESOURCES
 578
 579 // ---------------------------------------------------------------------------
 580 // helper functions for showing a "busy" cursor
 581 // ---------------------------------------------------------------------------
 582
 583 HCURSOR gs_wxBusyCursor = 0;     // new, busy cursor
 584 HCURSOR gs_wxBusyCursorOld = 0;  // old cursor
 585 static int gs_wxBusyCursorCount = 0;
 586
 587 // Set the cursor to the busy cursor for all windows
 588 void wxBeginBusyCursor(wxCursor *cursor)
 589 {
 590     if ( gs_wxBusyCursorCount++ == 0 )
 591     {
 592         gs_wxBusyCursor = (HCURSOR)cursor->GetHCURSOR();
 593         gs_wxBusyCursorOld = ::SetCursor(gs_wxBusyCursor);
 594     }
 595     //else: nothing to do, already set
 596 }
 597
 598 // Restore cursor to normal
 599 void wxEndBusyCursor()
 600 {
 601     wxCHECK_RET( gs_wxBusyCursorCount > 0,
 602                  wxT("no matching wxBeginBusyCursor() for wxEndBusyCursor()") );
 603
 604     if ( --gs_wxBusyCursorCount == 0 )
 605     {
 606         ::SetCursor(gs_wxBusyCursorOld);
 607
 608         gs_wxBusyCursorOld = 0;
 609     }
 610 }
 611
 612 // TRUE if we're between the above two calls
 613 bool wxIsBusy()
 614 {
 615   return (gs_wxBusyCursorCount > 0);
 616 }
 617
 618 // ---------------------------------------------------------------------------
 619 const wxChar* wxGetHomeDir(wxString *pstr)
 620 {
 621   wxString& strDir = *pstr;
 622
 623   #if defined(__UNIX__) && !defined(__TWIN32__)
 624     const wxChar *szHome = wxGetenv("HOME");
 625     if ( szHome == NULL ) {
 626       // we're homeless...
 627       wxLogWarning(_("can't find user's HOME, using current directory."));
 628       strDir = wxT(".");
 629     }
 630     else
 631        strDir = szHome;
 632
 633     // add a trailing slash if needed
 634     if ( strDir.Last() != wxT('/') )
 635       strDir << wxT('/');
 636   #else   // Windows
 637     #ifdef  __WIN32__
 638       const wxChar *szHome = wxGetenv(wxT("HOMEDRIVE"));
 639       if ( szHome != NULL )
 640         strDir << szHome;
 641       szHome = wxGetenv(wxT("HOMEPATH"));
 642       if ( szHome != NULL ) {
 643         strDir << szHome;
 644
 645         // the idea is that under NT these variables have default values
 646         // of "%systemdrive%:" and "\\". As we don't want to create our
 647         // config files in the root directory of the system drive, we will
 648         // create it in our program's dir. However, if the user took care
 649         // to set HOMEPATH to something other than "\\", we suppose that he
 650         // knows what he is doing and use the supplied value.
 651         if ( wxStrcmp(szHome, wxT("\\")) != 0 )
 652           return strDir.c_str();
 653       }
 654
 655     #else   // Win16
 656       // Win16 has no idea about home, so use the working directory instead
 657     #endif  // WIN16/32
 658
 659     // 260 was taken from windef.h
 660     #ifndef MAX_PATH
 661       #define MAX_PATH  260
 662     #endif
 663
 664     wxString strPath;
 665     ::GetModuleFileName(::GetModuleHandle(NULL),
 666                         strPath.GetWriteBuf(MAX_PATH), MAX_PATH);
 667     strPath.UngetWriteBuf();
 668
 669     // extract the dir name
 670     wxSplitPath(strPath, &strDir, NULL, NULL);
 671
 672   #endif  // UNIX/Win
 673
 674   return strDir.c_str();
 675 }
 676
 677 // Hack for MS-DOS
 678 wxChar *wxGetUserHome (const wxString& user)
 679 {
 680   wxChar *home;
 681   wxString user1(user);
 682
 683   if (user1 != wxT("")) {
 684     wxChar tmp[64];
 685     if (wxGetUserId(tmp, sizeof(tmp)/sizeof(char))) {
 686       // Guests belong in the temp dir
 687       if (wxStricmp(tmp, wxT("annonymous")) == 0) {
 688         if ((home = wxGetenv(wxT("TMP"))) != NULL ||
 689             (home = wxGetenv(wxT("TMPDIR"))) != NULL ||
 690             (home = wxGetenv(wxT("TEMP"))) != NULL)
 691             return *home ? home : (wxChar*)wxT("\\");
 692       }
 693       if (wxStricmp(tmp, WXSTRINGCAST user1) == 0)
 694         user1 = wxT("");
 695     }
 696   }
 697   if (user1 == wxT(""))
 698     if ((home = wxGetenv(wxT("HOME"))) != NULL)
 699     {
 700       wxStrcpy(wxBuffer, home);
 701       Unix2DosFilename(wxBuffer);
 702       return wxBuffer;
 703     }
 704   return NULL; // No home known!
 705 }
 706
 707 // Check whether this window wants to process messages, e.g. Stop button
 708 // in long calculations.
 709 bool wxCheckForInterrupt(wxWindow *wnd)
 710 {
 711   if(wnd){
 712     MSG msg;
 713     HWND win= (HWND) wnd->GetHWND();
 714     while(PeekMessage(&msg,win,0,0,PM_REMOVE)){
 715       TranslateMessage(&msg);
 716       DispatchMessage(&msg);
 717     }
 718     return TRUE;//*** temporary?
 719   }
 720   else{
 721     wxFAIL_MSG(wxT("wnd==NULL !!!"));
 722
 723     return FALSE;//*** temporary?
 724   }
 725 }
 726
 727 // MSW only: get user-defined resource from the .res file.
 728 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
 729
 730 #ifdef __WXMSW__
 731 wxChar *wxLoadUserResource(const wxString& resourceName, const wxString& resourceType)
 732 {
 733   wxChar *s = NULL;
 734 #if !defined(__WIN32__) || defined(__TWIN32__)
 735   HRSRC hResource = ::FindResource(wxGetInstance(), WXSTRINGCAST resourceName, WXSTRINGCAST resourceType);
 736 #else
 737 #ifdef UNICODE
 738   HRSRC hResource = ::FindResourceW(wxGetInstance(), WXSTRINGCAST resourceName, WXSTRINGCAST resourceType);
 739 #else
 740   HRSRC hResource = ::FindResourceA(wxGetInstance(), WXSTRINGCAST resourceName, WXSTRINGCAST resourceType);
 741 #endif
 742 #endif
 743
 744   if (hResource == 0)
 745     return NULL;
 746   HGLOBAL hData = ::LoadResource(wxGetInstance(), hResource);
 747   if (hData == 0)
 748     return NULL;
 749   wxChar *theText = (wxChar *)LockResource(hData);
 750   if (!theText)
 751     return NULL;
 752
 753   s = copystring(theText);
 754
 755   // Obsolete in WIN32
 756 #ifndef __WIN32__
 757   UnlockResource(hData);
 758 #endif
 759
 760   // No need??
 761 //  GlobalFree(hData);
 762
 763   return s;
 764 }
 765 #endif
 766
 767 void wxGetMousePosition( int* x, int* y )
 768 {
 769   POINT pt;
 770   GetCursorPos( & pt );
 771   *x = pt.x;
 772   *y = pt.y;
 773 };
 774
 775 // Return TRUE if we have a colour display
 776 bool wxColourDisplay()
 777 {
 778   HDC dc = ::GetDC((HWND) NULL);
 779   bool flag;
 780   int noCols = GetDeviceCaps(dc, NUMCOLORS);
 781   if ((noCols == -1) || (noCols > 2))
 782     flag = TRUE;
 783   else
 784     flag = FALSE;
 785   ReleaseDC((HWND) NULL, dc);
 786   return flag;
 787 }
 788
 789 // Returns depth of screen
 790 int wxDisplayDepth()
 791 {
 792   HDC dc = ::GetDC((HWND) NULL);
 793   int planes = GetDeviceCaps(dc, PLANES);
 794   int bitsPerPixel = GetDeviceCaps(dc, BITSPIXEL);
 795   int depth = planes*bitsPerPixel;
 796   ReleaseDC((HWND) NULL, dc);
 797   return depth;
 798 }
 799
 800 // Get size of display
 801 void wxDisplaySize(int *width, int *height)
 802 {
 803   HDC dc = ::GetDC((HWND) NULL);
 804   *width = GetDeviceCaps(dc, HORZRES); *height = GetDeviceCaps(dc, VERTRES);
 805   ReleaseDC((HWND) NULL, dc);
 806 }
 807
 808 bool wxDirExists(const wxString& dir)
 809 {
 810   /* MATTHEW: [6] Always use same code for Win32, call FindClose */
 811 #if defined(__WIN32__)
 812   WIN32_FIND_DATA fileInfo;
 813 #else
 814 #ifdef __BORLANDC__
 815   struct ffblk fileInfo;
 816 #else
 817   struct find_t fileInfo;
 818 #endif
 819 #endif
 820
 821 #if defined(__WIN32__)
 822   HANDLE h = FindFirstFile((LPTSTR) WXSTRINGCAST dir,(LPWIN32_FIND_DATA)&fileInfo);
 823
 824   if (h==INVALID_HANDLE_VALUE)
 825    return FALSE;
 826   else {
 827    FindClose(h);
 828    return ((fileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY);
 829   }
 830 #else
 831   // In Borland findfirst has a different argument
 832   // ordering from _dos_findfirst. But _dos_findfirst
 833   // _should_ be ok in both MS and Borland... why not?
 834 #ifdef __BORLANDC__
 835   return ((findfirst(WXSTRINGCAST dir, &fileInfo, _A_SUBDIR) == 0  && (fileInfo.ff_attrib & _A_SUBDIR) != 0));
 836 #else
 837   return (((_dos_findfirst(WXSTRINGCAST dir, _A_SUBDIR, &fileInfo) == 0) && (fileInfo.attrib & _A_SUBDIR)) != 0);
 838 #endif
 839 #endif
 840 }
 841
 842 // ---------------------------------------------------------------------------
 843 // window information functions
 844 // ---------------------------------------------------------------------------
 845
 846 wxString WXDLLEXPORT wxGetWindowText(WXHWND hWnd)
 847 {
 848     wxString str;
 849     int len = GetWindowTextLength((HWND)hWnd) + 1;
 850     GetWindowText((HWND)hWnd, str.GetWriteBuf(len), len);
 851     str.UngetWriteBuf();
 852
 853     return str;
 854 }
 855
 856 wxString WXDLLEXPORT wxGetWindowClass(WXHWND hWnd)
 857 {
 858     wxString str;
 859
 860     int len = 256; // some starting value
 861
 862     for ( ;; )
 863     {
 864         // as we've #undefined GetClassName we must now manually choose the
 865         // right function to call
 866         int count =
 867
 868         #ifndef __WIN32__
 869             GetClassName
 870         #else // Win32
 871             #ifdef UNICODE
 872                 GetClassNameW
 873             #else // !Unicode
 874                 #ifdef __TWIN32__
 875                     GetClassName
 876                 #else // !Twin32
 877                     GetClassNameA
 878                 #endif // Twin32/!Twin32
 879             #endif // Unicode/ANSI
 880         #endif // Win16/32
 881                                     ((HWND)hWnd, str.GetWriteBuf(len), len);
 882
 883         str.UngetWriteBuf();
 884         if ( count == len )
 885         {
 886             // the class name might have been truncated, retry with larger
 887             // buffer
 888             len *= 2;
 889         }
 890         else
 891         {
 892             break;
 893         }
 894     }
 895
 896     return str;
 897 }
 898
 899 WXWORD WXDLLEXPORT wxGetWindowId(WXHWND hWnd)
 900 {
 901 #ifndef __WIN32__
 902     return GetWindowWord((HWND)hWnd, GWW_ID);
 903 #else // Win32
 904     return GetWindowLong((HWND)hWnd, GWL_ID);
 905 #endif // Win16/32
 906 }
 907
 908 #if 0
 909 //------------------------------------------------------------------------
 910 // wild character routines
 911 //------------------------------------------------------------------------
 912
 913 bool wxIsWild( const wxString& pattern )
 914 {
 915   wxString tmp = pattern;
 916   char *pat = WXSTRINGCAST(tmp);
 917     while (*pat) {
 918   switch (*pat++) {
 919   case '?': case '*': case '[': case '{':
 920       return TRUE;
 921   case '\\':
 922       if (!*pat++)
 923     return FALSE;
 924   }
 925     }
 926     return FALSE;
 927 };
 928
 929
 930 bool wxMatchWild( const wxString& pat, const wxString& text, bool dot_special )
 931 {
 932   wxString tmp1 = pat;
 933   char *pattern = WXSTRINGCAST(tmp1);
 934   wxString tmp2 = text;
 935   char *str = WXSTRINGCAST(tmp2);
 936     char c;
 937     char *cp;
 938     bool done = FALSE, ret_code, ok;
 939     // Below is for vi fans
 940     const char OB = '{', CB = '}';
 941
 942     // dot_special means '.' only matches '.'
 943     if (dot_special && *str == '.' && *pattern != *str)
 944   return FALSE;
 945
 946     while ((*pattern != '\0') && (!done)
 947     && (((*str=='\0')&&((*pattern==OB)||(*pattern=='*')))||(*str!='\0'))) {
 948   switch (*pattern) {
 949   case '\\':
 950       pattern++;
 951       if (*pattern != '\0')
 952     pattern++;
 953       break;
 954   case '*':
 955       pattern++;
 956       ret_code = FALSE;
 957       while ((*str!='\0')
 958       && (!(ret_code=wxMatchWild(pattern, str++, FALSE))))
 959     /*loop*/;
 960       if (ret_code) {
 961     while (*str != '\0')
 962         str++;
 963     while (*pattern != '\0')
 964         pattern++;
 965       }
 966       break;
 967   case '[':
 968       pattern++;
 969     repeat:
 970       if ((*pattern == '\0') || (*pattern == ']')) {
 971     done = TRUE;
 972     break;
 973       }
 974       if (*pattern == '\\') {
 975     pattern++;
 976     if (*pattern == '\0') {
 977         done = TRUE;
 978         break;
 979     }
 980       }
 981       if (*(pattern + 1) == '-') {
 982     c = *pattern;
 983     pattern += 2;
 984     if (*pattern == ']') {
 985         done = TRUE;
 986         break;
 987     }
 988     if (*pattern == '\\') {
 989         pattern++;
 990         if (*pattern == '\0') {
 991       done = TRUE;
 992       break;
 993         }
 994     }
 995     if ((*str < c) || (*str > *pattern)) {
 996         pattern++;
 997         goto repeat;
 998     }
 999       } else if (*pattern != *str) {
1000     pattern++;
1001     goto repeat;
1002       }
1003       pattern++;
1004       while ((*pattern != ']') && (*pattern != '\0')) {
1005     if ((*pattern == '\\') && (*(pattern + 1) != '\0'))
1006         pattern++;
1007     pattern++;
1008       }
1009       if (*pattern != '\0') {
1010     pattern++, str++;
1011       }
1012       break;
1013   case '?':
1014       pattern++;
1015       str++;
1016       break;
1017   case OB:
1018       pattern++;
1019       while ((*pattern != CB) && (*pattern != '\0')) {
1020     cp = str;
1021     ok = TRUE;
1022     while (ok && (*cp != '\0') && (*pattern != '\0')
1023     &&  (*pattern != ',') && (*pattern != CB)) {
1024         if (*pattern == '\\')
1025       pattern++;
1026         ok = (*pattern++ == *cp++);
1027     }
1028     if (*pattern == '\0') {
1029         ok = FALSE;
1030         done = TRUE;
1031         break;
1032     } else if (ok) {
1033         str = cp;
1034         while ((*pattern != CB) && (*pattern != '\0')) {
1035       if (*++pattern == '\\') {
1036           if (*++pattern == CB)
1037         pattern++;
1038       }
1039         }
1040     } else {
1041         while (*pattern!=CB && *pattern!=',' && *pattern!='\0') {
1042       if (*++pattern == '\\') {
1043                             if (*++pattern == CB || *pattern == ',')
1044         pattern++;
1045       }
1046         }
1047     }
1048     if (*pattern != '\0')
1049         pattern++;
1050       }
1051       break;
1052   default:
1053       if (*str == *pattern) {
1054     str++, pattern++;
1055       } else {
1056     done = TRUE;
1057       }
1058   }
1059     }
1060     while (*pattern == '*')
1061   pattern++;
1062     return ((*str == '\0') && (*pattern == '\0'));
1063 };
1064
1065 #endif
1066
1067 #if 0
1068
1069 // maximum mumber of lines the output console should have
1070 static const WORD MAX_CONSOLE_LINES = 500;
1071
1072 BOOL WINAPI MyConsoleHandler( DWORD dwCtrlType ) {   //  control signal type
1073   FreeConsole();
1074   return TRUE;
1075 }
1076
1077 void wxRedirectIOToConsole()
1078 {
1079     int                        hConHandle;
1080     long                       lStdHandle;
1081     CONSOLE_SCREEN_BUFFER_INFO coninfo;
1082     FILE                       *fp;
1083
1084     // allocate a console for this app
1085     AllocConsole();
1086
1087     // set the screen buffer to be big enough to let us scroll text
1088     GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE),
1089                                &coninfo);
1090     coninfo.dwSize.Y = MAX_CONSOLE_LINES;
1091     SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE),
1092                                coninfo.dwSize);
1093
1094     // redirect unbuffered STDOUT to the console
1095     lStdHandle = (long)GetStdHandle(STD_OUTPUT_HANDLE);
1096     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1097     if(hConHandle <= 0) return;
1098     fp = _fdopen( hConHandle, "w" );
1099     *stdout = *fp;
1100     setvbuf( stdout, NULL, _IONBF, 0 );
1101
1102     // redirect unbuffered STDIN to the console
1103     lStdHandle = (long)GetStdHandle(STD_INPUT_HANDLE);
1104     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1105     if(hConHandle <= 0) return;
1106     fp = _fdopen( hConHandle, "r" );
1107     *stdin = *fp;
1108     setvbuf( stdin, NULL, _IONBF, 0 );
1109
1110     // redirect unbuffered STDERR to the console
1111     lStdHandle = (long)GetStdHandle(STD_ERROR_HANDLE);
1112     hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
1113     if(hConHandle <= 0) return;
1114     fp = _fdopen( hConHandle, "w" );
1115     *stderr = *fp;
1116     setvbuf( stderr, NULL, _IONBF, 0 );
1117
1118     // make cout, wcout, cin, wcin, wcerr, cerr, wclog and clog
1119     // point to console as well
1120     ios::sync_with_stdio();
1121
1122     SetConsoleCtrlHandler(MyConsoleHandler, TRUE);
1123 }
1124 #else
1125 // Not supported
1126 void wxRedirectIOToConsole()
1127 {
1128 }
1129 #endif
1130
1131