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/intl.h"
  35     #include "wx/log.h"
  36 #if wxUSE_GUI
  37     #include "wx/cursor.h"
  38 #endif
  39 #endif  //WX_PRECOMP
  40
  41 // In some mingws there is a missing extern "C" int the winsock header,
  42 // so we put it here just to be safe. Note that this must appear _before_
  43 // #include "wx/msw/private.h" which itself includes <windows.h>, as this
  44 // one in turn includes <winsock.h> unless we define WIN32_LEAN_AND_MEAN.
  45 //
  46 #if defined(__WIN32__) && !defined(__TWIN32__) && !defined(__WXMICROWIN__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__))
  47 extern "C" {
  48     #include <winsock.h>    // we use socket functions in wxGetFullHostName()
  49 }
  50 #endif
  51
  52 #include "wx/msw/private.h"     // includes <windows.h>
  53
  54 #include "wx/timer.h"
  55
  56 #if !defined(__GNUWIN32__) && !defined(__WXWINE__) && !defined(__SALFORDC__) && !defined(__WXMICROWIN__)
  57     #include <direct.h>
  58
  59     #ifndef __MWERKS__
  60         #include <dos.h>
  61     #endif
  62 #endif  //GNUWIN32
  63
  64 #if defined(__CYGWIN__) && !defined(__TWIN32__)
  65     #include <sys/unistd.h>
  66     #include <sys/stat.h>
  67     #include <sys/cygwin.h> // for cygwin_conv_to_full_win32_path()
  68 #endif  //GNUWIN32
  69
  70 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  71                     // this (3.1 I believe) and how to test for it.
  72                     // If this works for Borland 4.0 as well, then no worries.
  73     #include <dir.h>
  74 #endif
  75
  76 // VZ: there is some code using NetXXX() functions to get the full user name:
  77 //     I don't think it's a good idea because they don't work under Win95 and
  78 //     seem to return the same as wxGetUserId() under NT. If you really want
  79 //     to use them, just #define USE_NET_API
  80 #undef USE_NET_API
  81
  82 #ifdef USE_NET_API
  83     #include <lm.h>
  84 #endif // USE_NET_API
  85
  86 #if defined(__WIN32__) && !defined(__WXWINE__) && !defined(__WXMICROWIN__)
  87     #include <io.h>
  88
  89     #ifndef __GNUWIN32__
  90         #include <shellapi.h>
  91     #endif
  92 #endif
  93
  94 #ifndef __WATCOMC__
  95     #if !(defined(_MSC_VER) && (_MSC_VER > 800))
  96         #include <errno.h>
  97     #endif
  98 #endif
  99
 100 //// BEGIN for console support: VC++ only
 101 #ifdef __VISUALC__
 102
 103 #include "wx/msw/msvcrt.h"
 104
 105 #include <fcntl.h>
 106
 107 #include "wx/ioswrap.h"
 108
 109 /* Need to undef new if including crtdbg.h */
 110 #  ifdef new
 111 #  undef new
 112 #  endif
 113
 114 #ifndef __WIN16__
 115 #  include <crtdbg.h>
 116 #endif
 117
 118 #  if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
 119 #  define new new(__TFILE__,__LINE__)
 120 #  endif
 121
 122 #endif
 123   // __VISUALC__
 124 /// END for console support
 125
 126 // ----------------------------------------------------------------------------
 127 // constants
 128 // ----------------------------------------------------------------------------
 129
 130 // In the WIN.INI file
 131 static const wxChar WX_SECTION[] = wxT("wxWindows");
 132 static const wxChar eUSERNAME[]  = wxT("UserName");
 133
 134 // these are only used under Win16
 135 #if !defined(__WIN32__) && !defined(__WXMICROWIN__)
 136 static const wxChar eHOSTNAME[]  = wxT("HostName");
 137 static const wxChar eUSERID[]    = wxT("UserId");
 138 #endif // !Win32
 139
 140 #ifndef __WXMICROWIN__
 141
 142 // ============================================================================
 143 // implementation
 144 // ============================================================================
 145
 146 // ----------------------------------------------------------------------------
 147 // get host name and related
 148 // ----------------------------------------------------------------------------
 149
 150 // Get hostname only (without domain name)
 151 bool wxGetHostName(wxChar *buf, int maxSize)
 152 {
 153 #if defined(__WIN32__) && !defined(__TWIN32__) && !defined(__WXMICROWIN__)
 154     DWORD nSize = maxSize;
 155     if ( !::GetComputerName(buf, &nSize) )
 156     {
 157         wxLogLastError(wxT("GetComputerName"));
 158
 159         return FALSE;
 160     }
 161
 162     return TRUE;
 163 #else
 164     wxChar *sysname;
 165     const wxChar *default_host = wxT("noname");
 166
 167     if ((sysname = wxGetenv(wxT("SYSTEM_NAME"))) == NULL) {
 168         GetProfileString(WX_SECTION, eHOSTNAME, default_host, buf, maxSize - 1);
 169     } else
 170         wxStrncpy(buf, sysname, maxSize - 1);
 171     buf[maxSize] = wxT('\0');
 172     return *buf ? TRUE : FALSE;
 173 #endif
 174 }
 175
 176 // get full hostname (with domain name if possible)
 177 bool wxGetFullHostName(wxChar *buf, int maxSize)
 178 {
 179 #if defined(__WIN32__) && !defined(__TWIN32__) && !defined(__WXMICROWIN__) && ! (defined(__GNUWIN32__) && !defined(__MINGW32__))
 180     // TODO should use GetComputerNameEx() when available
 181     WSADATA wsa;
 182     if ( WSAStartup(MAKEWORD(1, 1), &wsa) == 0 )
 183     {
 184         wxString host;
 185         char bufA[256];
 186         if ( gethostname(bufA, WXSIZEOF(bufA)) == 0 )
 187         {
 188             // gethostname() won't usually include the DNS domain name, for
 189             // this we need to work a bit more
 190             if ( !strchr(bufA, '.') )
 191             {
 192                 struct hostent *pHostEnt =  gethostbyname(bufA);
 193
 194                 if ( pHostEnt )
 195                 {
 196                     // Windows will use DNS internally now
 197                     pHostEnt = gethostbyaddr(pHostEnt->h_addr, 4, PF_INET);
 198                 }
 199
 200                 if ( pHostEnt )
 201                 {
 202                     host = pHostEnt->h_name;
 203                 }
 204             }
 205         }
 206
 207         WSACleanup();
 208
 209         if ( !!host )
 210         {
 211             wxStrncpy(buf, host, maxSize);
 212
 213             return TRUE;
 214         }
 215     }
 216 #endif // Win32
 217
 218     return wxGetHostName(buf, maxSize);
 219 }
 220
 221 // Get user ID e.g. jacs
 222 bool wxGetUserId(wxChar *buf, int maxSize)
 223 {
 224 #if defined(__WIN32__) && !defined(__win32s__) && !defined(__TWIN32__) && !defined(__WXMICROWIN__)
 225     DWORD nSize = maxSize;
 226     if ( ::GetUserName(buf, &nSize) == 0 )
 227     {
 228         // actually, it does happen on Win9x if the user didn't log on
 229         DWORD res = ::GetEnvironmentVariable(wxT("username"), buf, maxSize);
 230         if ( res == 0 )
 231         {
 232             // not found
 233             return FALSE;
 234         }
 235     }
 236
 237     return TRUE;
 238 #else   // Win16 or Win32s
 239     wxChar *user;
 240     const wxChar *default_id = wxT("anonymous");
 241
 242     // Can't assume we have NIS (PC-NFS) or some other ID daemon
 243     // So we ...
 244     if (  (user = wxGetenv(wxT("USER"))) == NULL &&
 245             (user = wxGetenv(wxT("LOGNAME"))) == NULL )
 246     {
 247         // Use wxWindows configuration data (comming soon)
 248         GetProfileString(WX_SECTION, eUSERID, default_id, buf, maxSize - 1);
 249     }
 250     else
 251     {
 252         wxStrncpy(buf, user, maxSize - 1);
 253     }
 254
 255     return *buf ? TRUE : FALSE;
 256 #endif
 257 }
 258
 259 // Get user name e.g. Julian Smart
 260 bool wxGetUserName(wxChar *buf, int maxSize)
 261 {
 262 #if wxUSE_PENWINDOWS && !defined(__WATCOMC__) && !defined(__GNUWIN32__)
 263     extern HANDLE g_hPenWin; // PenWindows Running?
 264     if (g_hPenWin)
 265     {
 266         // PenWindows Does have a user concept!
 267         // Get the current owner of the recognizer
 268         GetPrivateProfileString("Current", "User", default_name, wxBuffer, maxSize - 1, "PENWIN.INI");
 269         strncpy(buf, wxBuffer, maxSize - 1);
 270     }
 271     else
 272 #endif
 273     {
 274 #ifdef USE_NET_API
 275         CHAR szUserName[256];
 276         if ( !wxGetUserId(szUserName, WXSIZEOF(szUserName)) )
 277             return FALSE;
 278
 279         // TODO how to get the domain name?
 280         CHAR *szDomain = "";
 281
 282         // the code is based on the MSDN example (also see KB article Q119670)
 283         WCHAR wszUserName[256];          // Unicode user name
 284         WCHAR wszDomain[256];
 285         LPBYTE ComputerName;
 286
 287         USER_INFO_2 *ui2;         // User structure
 288
 289         // Convert ANSI user name and domain to Unicode
 290         MultiByteToWideChar( CP_ACP, 0, szUserName, strlen(szUserName)+1,
 291                 wszUserName, WXSIZEOF(wszUserName) );
 292         MultiByteToWideChar( CP_ACP, 0, szDomain, strlen(szDomain)+1,
 293                 wszDomain, WXSIZEOF(wszDomain) );
 294
 295         // Get the computer name of a DC for the domain.
 296         if ( NetGetDCName( NULL, wszDomain, &ComputerName ) != NERR_Success )
 297         {
 298             wxLogError(wxT("Can not find domain controller"));
 299
 300             goto error;
 301         }
 302
 303         // Look up the user on the DC
 304         NET_API_STATUS status = NetUserGetInfo( (LPWSTR)ComputerName,
 305                 (LPWSTR)&wszUserName,
 306                 2, // level - we want USER_INFO_2
 307                 (LPBYTE *) &ui2 );
 308         switch ( status )
 309         {
 310             case NERR_Success:
 311                 // ok
 312                 break;
 313
 314             case NERR_InvalidComputer:
 315                 wxLogError(wxT("Invalid domain controller name."));
 316
 317                 goto error;
 318
 319             case NERR_UserNotFound:
 320                 wxLogError(wxT("Invalid user name '%s'."), szUserName);
 321
 322                 goto error;
 323
 324             default:
 325                 wxLogSysError(wxT("Can't get information about user"));
 326
 327                 goto error;
 328         }
 329
 330         // Convert the Unicode full name to ANSI
 331         WideCharToMultiByte( CP_ACP, 0, ui2->usri2_full_name, -1,
 332                 buf, maxSize, NULL, NULL );
 333
 334         return TRUE;
 335
 336 error:
 337         wxLogError(wxT("Couldn't look up full user name."));
 338
 339         return FALSE;
 340 #else  // !USE_NET_API
 341         // Could use NIS, MS-Mail or other site specific programs
 342         // Use wxWindows configuration data
 343         bool ok = GetProfileString(WX_SECTION, eUSERNAME, wxT(""), buf, maxSize - 1) != 0;
 344         if ( !ok )
 345         {
 346             ok = wxGetUserId(buf, maxSize);
 347         }
 348
 349         if ( !ok )
 350         {
 351             wxStrncpy(buf, wxT("Unknown User"), maxSize);
 352         }
 353 #endif // Win32/16
 354     }
 355
 356     return TRUE;
 357 }
 358
 359 const wxChar* wxGetHomeDir(wxString *pstr)
 360 {
 361   wxString& strDir = *pstr;
 362
 363   #if defined(__UNIX__) && !defined(__TWIN32__)
 364     const wxChar *szHome = wxGetenv("HOME");
 365     if ( szHome == NULL ) {
 366       // we're homeless...
 367       wxLogWarning(_("can't find user's HOME, using current directory."));
 368       strDir = wxT(".");
 369     }
 370     else
 371        strDir = szHome;
 372
 373     // add a trailing slash if needed
 374     if ( strDir.Last() != wxT('/') )
 375       strDir << wxT('/');
 376
 377     #ifdef __CYGWIN__
 378       // Cygwin returns unix type path but that does not work well
 379       static wxChar windowsPath[MAX_PATH];
 380       cygwin_conv_to_full_win32_path(strDir, windowsPath);
 381       strDir = windowsPath;
 382     #endif
 383   #else   // Windows
 384     #ifdef  __WIN32__
 385       const wxChar *szHome = wxGetenv(wxT("HOMEDRIVE"));
 386       if ( szHome != NULL )
 387         strDir << szHome;
 388       szHome = wxGetenv(wxT("HOMEPATH"));
 389       if ( szHome != NULL ) {
 390         strDir << szHome;
 391
 392         // the idea is that under NT these variables have default values
 393         // of "%systemdrive%:" and "\\". As we don't want to create our
 394         // config files in the root directory of the system drive, we will
 395         // create it in our program's dir. However, if the user took care
 396         // to set HOMEPATH to something other than "\\", we suppose that he
 397         // knows what he is doing and use the supplied value.
 398         if ( wxStrcmp(szHome, wxT("\\")) != 0 )
 399           return strDir.c_str();
 400       }
 401
 402     #else   // Win16
 403       // Win16 has no idea about home, so use the working directory instead
 404     #endif  // WIN16/32
 405
 406     // 260 was taken from windef.h
 407     #ifndef MAX_PATH
 408       #define MAX_PATH  260
 409     #endif
 410
 411     wxString strPath;
 412     ::GetModuleFileName(::GetModuleHandle(NULL),
 413                         strPath.GetWriteBuf(MAX_PATH), MAX_PATH);
 414     strPath.UngetWriteBuf();
 415
 416     // extract the dir name
 417     wxSplitPath(strPath, &strDir, NULL, NULL);
 418
 419   #endif  // UNIX/Win
 420
 421   return strDir.c_str();
 422 }
 423
 424 wxChar *wxGetUserHome(const wxString& WXUNUSED(user))
 425 {
 426     // VZ: the old code here never worked for user != "" anyhow! Moreover, it
 427     //     returned sometimes a malloc()'d pointer, sometimes a pointer to a
 428     //     static buffer and sometimes I don't even know what.
 429     static wxString s_home;
 430
 431     return (wxChar *)wxGetHomeDir(&s_home);
 432 }
 433
 434 bool wxDirExists(const wxString& dir)
 435 {
 436 #ifdef __WXMICROWIN__
 437     return wxPathExist(dir);
 438 #elif 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 bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
 461 {
 462     if ( path.empty() )
 463         return FALSE;
 464
 465 // old w32api don't have ULARGE_INTEGER
 466 #if defined(__WIN32__) && \
 467     (!defined(__GNUWIN32__) || wxCHECK_W32API_VERSION( 0, 3 ))
 468     // GetDiskFreeSpaceEx() is not available under original Win95, check for
 469     // it
 470     typedef BOOL (WINAPI *GetDiskFreeSpaceEx_t)(LPCTSTR,
 471                                                 PULARGE_INTEGER,
 472                                                 PULARGE_INTEGER,
 473                                                 PULARGE_INTEGER);
 474
 475     GetDiskFreeSpaceEx_t
 476         pGetDiskFreeSpaceEx = (GetDiskFreeSpaceEx_t)::GetProcAddress
 477                               (
 478                                 ::GetModuleHandle(_T("kernel32.dll")),
 479 #if wxUSE_UNICODE
 480                                 "GetDiskFreeSpaceExW"
 481 #else
 482                                 "GetDiskFreeSpaceExA"
 483 #endif
 484                               );
 485
 486     if ( pGetDiskFreeSpaceEx )
 487     {
 488         ULARGE_INTEGER bytesFree, bytesTotal;
 489
 490         // may pass the path as is, GetDiskFreeSpaceEx() is smart enough
 491         if ( !pGetDiskFreeSpaceEx(path,
 492                                   &bytesFree,
 493                                   &bytesTotal,
 494                                   NULL) )
 495         {
 496             wxLogLastError(_T("GetDiskFreeSpaceEx"));
 497
 498             return FALSE;
 499         }
 500
 501         if ( pTotal )
 502         {
 503             *pTotal = wxLongLong(bytesTotal.HighPart, bytesTotal.LowPart);
 504         }
 505
 506         if ( pFree )
 507         {
 508             *pFree = wxLongLong(bytesFree.HighPart, bytesFree.LowPart);
 509         }
 510     }
 511     else
 512 #endif // Win32
 513     {
 514         // there's a problem with drives larger than 2GB, GetDiskFreeSpaceEx()
 515         // should be used instead - but if it's not available, fall back on
 516         // GetDiskFreeSpace() nevertheless...
 517
 518         DWORD lSectorsPerCluster,
 519               lBytesPerSector,
 520               lNumberOfFreeClusters,
 521               lTotalNumberOfClusters;
 522
 523         // FIXME: this is wrong, we should extract the root drive from path
 524         //        instead, but this is the job for wxFileName...
 525         if ( !::GetDiskFreeSpace(path,
 526                                  &lSectorsPerCluster,
 527                                  &lBytesPerSector,
 528                                  &lNumberOfFreeClusters,
 529                                  &lTotalNumberOfClusters) )
 530         {
 531             wxLogLastError(_T("GetDiskFreeSpace"));
 532
 533             return FALSE;
 534         }
 535
 536         wxLongLong lBytesPerCluster = lSectorsPerCluster;
 537         lBytesPerCluster *= lBytesPerSector;
 538
 539         if ( pTotal )
 540         {
 541             *pTotal = lBytesPerCluster;
 542             *pTotal *= lTotalNumberOfClusters;
 543         }
 544
 545         if ( pFree )
 546         {
 547             *pFree = lBytesPerCluster;
 548             *pFree *= lNumberOfFreeClusters;
 549         }
 550     }
 551
 552     return TRUE;
 553 }
 554
 555 // ----------------------------------------------------------------------------
 556 // env vars
 557 // ----------------------------------------------------------------------------
 558
 559 bool wxGetEnv(const wxString& var, wxString *value)
 560 {
 561 #ifdef __WIN16__
 562     const wxChar* ret = wxGetenv(var);
 563     if (ret)
 564     {
 565         *value = ret;
 566         return TRUE;
 567     }
 568     else
 569         return FALSE;
 570 #else
 571     // first get the size of the buffer
 572     DWORD dwRet = ::GetEnvironmentVariable(var, NULL, 0);
 573     if ( !dwRet )
 574     {
 575         // this means that there is no such variable
 576         return FALSE;
 577     }
 578
 579     if ( value )
 580     {
 581         (void)::GetEnvironmentVariable(var, value->GetWriteBuf(dwRet), dwRet);
 582         value->UngetWriteBuf();
 583     }
 584
 585     return TRUE;
 586 #endif
 587 }
 588
 589 bool wxSetEnv(const wxString& var, const wxChar *value)
 590 {
 591     // some compilers have putenv() or _putenv() or _wputenv() but it's better
 592     // to always use Win32 function directly instead of dealing with them
 593 #if defined(__WIN32__)
 594     if ( !::SetEnvironmentVariable(var, value) )
 595     {
 596         wxLogLastError(_T("SetEnvironmentVariable"));
 597
 598         return FALSE;
 599     }
 600
 601     return TRUE;
 602 #else // no way to set env vars
 603     return FALSE;
 604 #endif
 605 }
 606
 607 // ----------------------------------------------------------------------------
 608 // process management
 609 // ----------------------------------------------------------------------------
 610
 611 #ifdef __WIN32__
 612
 613 // structure used to pass parameters from wxKill() to wxEnumFindByPidProc()
 614 struct wxFindByPidParams
 615 {
 616     wxFindByPidParams() { hwnd = 0; pid = 0; }
 617
 618     // the HWND used to return the result
 619     HWND hwnd;
 620
 621     // the PID we're looking from
 622     DWORD pid;
 623 };
 624
 625 // wxKill helper: EnumWindows() callback which is used to find the first (top
 626 // level) window belonging to the given process
 627 BOOL CALLBACK wxEnumFindByPidProc(HWND hwnd, LPARAM lParam)
 628 {
 629     DWORD pid;
 630     (void)::GetWindowThreadProcessId(hwnd, &pid);
 631
 632     wxFindByPidParams *params = (wxFindByPidParams *)lParam;
 633     if ( pid == params->pid )
 634     {
 635         // remember the window we found
 636         params->hwnd = hwnd;
 637
 638         // return FALSE to stop the enumeration
 639         return FALSE;
 640     }
 641
 642     // continue enumeration
 643     return TRUE;
 644 }
 645
 646 #endif // __WIN32__
 647
 648 int wxKill(long pid, wxSignal sig, wxKillError *krc)
 649 {
 650 #ifdef __WIN32__
 651     // get the process handle to operate on
 652     HANDLE hProcess = ::OpenProcess(SYNCHRONIZE |
 653                                     PROCESS_TERMINATE |
 654                                     PROCESS_QUERY_INFORMATION,
 655                                     FALSE, // not inheritable
 656                                     (DWORD)pid);
 657     if ( hProcess == NULL )
 658     {
 659         if ( krc )
 660         {
 661             if ( ::GetLastError() == ERROR_ACCESS_DENIED )
 662             {
 663                 *krc = wxKILL_ACCESS_DENIED;
 664             }
 665             else
 666             {
 667                 *krc = wxKILL_NO_PROCESS;
 668             }
 669         }
 670
 671         return -1;
 672     }
 673
 674     bool ok = TRUE;
 675     switch ( sig )
 676     {
 677         case wxSIGKILL:
 678             // kill the process forcefully returning -1 as error code
 679             if ( !::TerminateProcess(hProcess, (UINT)-1) )
 680             {
 681                 wxLogSysError(_("Failed to kill process %d"), pid);
 682
 683                 if ( krc )
 684                 {
 685                     // this is not supposed to happen if we could open the
 686                     // process
 687                     *krc = wxKILL_ERROR;
 688                 }
 689
 690                 ok = FALSE;
 691             }
 692             break;
 693
 694         case wxSIGNONE:
 695             // do nothing, we just want to test for process existence
 696             break;
 697
 698         default:
 699             // any other signal means "terminate"
 700             {
 701                 wxFindByPidParams params;
 702                 params.pid = (DWORD)pid;
 703
 704                 // EnumWindows() has nice semantics: it returns 0 if it found
 705                 // something or if an error occured and non zero if it
 706                 // enumerated all the window
 707                 if ( !::EnumWindows(wxEnumFindByPidProc, (LPARAM)&params) )
 708                 {
 709                     // did we find any window?
 710                     if ( params.hwnd )
 711                     {
 712                         // tell the app to close
 713                         //
 714                         // NB: this is the harshest way, the app won't have
 715                         //     opportunity to save any files, for example, but
 716                         //     this is probably what we want here. If not we
 717                         //     can also use SendMesageTimeout(WM_CLOSE)
 718                         if ( !::PostMessage(params.hwnd, WM_QUIT, 0, 0) )
 719                         {
 720                             wxLogLastError(_T("PostMessage(WM_QUIT)"));
 721                         }
 722                     }
 723                     else // it was an error then
 724                     {
 725                         wxLogLastError(_T("EnumWindows"));
 726
 727                         ok = FALSE;
 728                     }
 729                 }
 730                 else // no windows for this PID
 731                 {
 732                     if ( krc )
 733                     {
 734                         *krc = wxKILL_ERROR;
 735                     }
 736
 737                     ok = FALSE;
 738                 }
 739             }
 740     }
 741
 742     // the return code
 743     DWORD rc;
 744
 745     if ( ok )
 746     {
 747         // as we wait for a short time, we can use just WaitForSingleObject()
 748         // and not MsgWaitForMultipleObjects()
 749         switch ( ::WaitForSingleObject(hProcess, 500 /* msec */) )
 750         {
 751             case WAIT_OBJECT_0:
 752                 // process terminated
 753                 if ( !::GetExitCodeProcess(hProcess, &rc) )
 754                 {
 755                     wxLogLastError(_T("GetExitCodeProcess"));
 756                 }
 757                 break;
 758
 759             default:
 760                 wxFAIL_MSG( _T("unexpected WaitForSingleObject() return") );
 761                 // fall through
 762
 763             case WAIT_FAILED:
 764                 wxLogLastError(_T("WaitForSingleObject"));
 765                 // fall through
 766
 767             case WAIT_TIMEOUT:
 768                 if ( krc )
 769                 {
 770                     *krc = wxKILL_ERROR;
 771                 }
 772
 773                 rc = STILL_ACTIVE;
 774                 break;
 775         }
 776     }
 777     else // !ok
 778     {
 779         // just to suppress the warnings about uninitialized variable
 780         rc = 0;
 781     }
 782
 783     ::CloseHandle(hProcess);
 784
 785     // the return code is the same as from Unix kill(): 0 if killed
 786     // successfully or -1 on error
 787     if ( sig == wxSIGNONE )
 788     {
 789         if ( ok && rc == STILL_ACTIVE )
 790         {
 791             // there is such process => success
 792             return 0;
 793         }
 794     }
 795     else // not SIGNONE
 796     {
 797         if ( ok && rc != STILL_ACTIVE )
 798         {
 799             // killed => success
 800             return 0;
 801         }
 802     }
 803 #else // Win15
 804     wxFAIL_MSG( _T("not implemented") );
 805 #endif // Win32/Win16
 806
 807     // error
 808     return -1;
 809 }
 810
 811 // Execute a program in an Interactive Shell
 812 bool wxShell(const wxString& command)
 813 {
 814     wxChar *shell = wxGetenv(wxT("COMSPEC"));
 815     if ( !shell )
 816         shell = wxT("\\COMMAND.COM");
 817
 818     wxString cmd;
 819     if ( !command )
 820     {
 821         // just the shell
 822         cmd = shell;
 823     }
 824     else
 825     {
 826         // pass the command to execute to the command processor
 827         cmd.Printf(wxT("%s /c %s"), shell, command.c_str());
 828     }
 829
 830     return wxExecute(cmd, TRUE /* sync */) != 0;
 831 }
 832
 833 // ----------------------------------------------------------------------------
 834 // misc
 835 // ----------------------------------------------------------------------------
 836
 837 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 838 long wxGetFreeMemory()
 839 {
 840 #if defined(__WIN32__) && !defined(__BORLANDC__) && !defined(__TWIN32__)
 841     MEMORYSTATUS memStatus;
 842     memStatus.dwLength = sizeof(MEMORYSTATUS);
 843     GlobalMemoryStatus(&memStatus);
 844     return memStatus.dwAvailPhys;
 845 #else
 846     return (long)GetFreeSpace(0);
 847 #endif
 848 }
 849
 850 // Emit a beeeeeep
 851 void wxBell()
 852 {
 853     ::MessageBeep((UINT)-1);        // default sound
 854 }
 855
 856 wxString wxGetOsDescription()
 857 {
 858 #ifdef __WIN32__
 859     wxString str;
 860
 861     OSVERSIONINFO info;
 862     wxZeroMemory(info);
 863
 864     info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 865     if ( ::GetVersionEx(&info) )
 866     {
 867         switch ( info.dwPlatformId )
 868         {
 869             case VER_PLATFORM_WIN32s:
 870                 str = _("Win32s on Windows 3.1");
 871                 break;
 872
 873             case VER_PLATFORM_WIN32_WINDOWS:
 874                 str.Printf(_("Windows 9%c"),
 875                            info.dwMinorVersion == 0 ? _T('5') : _T('8'));
 876                 if ( !wxIsEmpty(info.szCSDVersion) )
 877                 {
 878                     str << _T(" (") << info.szCSDVersion << _T(')');
 879                 }
 880                 break;
 881
 882             case VER_PLATFORM_WIN32_NT:
 883                 str.Printf(_T("Windows NT %lu.%lu (build %lu"),
 884                            info.dwMajorVersion,
 885                            info.dwMinorVersion,
 886                            info.dwBuildNumber);
 887                 if ( !wxIsEmpty(info.szCSDVersion) )
 888                 {
 889                     str << _T(", ") << info.szCSDVersion;
 890                 }
 891                 str << _T(')');
 892                 break;
 893         }
 894     }
 895     else
 896     {
 897         wxFAIL_MSG( _T("GetVersionEx() failed") ); // should never happen
 898     }
 899
 900     return str;
 901 #else // Win16
 902     return _("Windows 3.1");
 903 #endif // Win32/16
 904 }
 905
 906 int wxGetOsVersion(int *majorVsn, int *minorVsn)
 907 {
 908 #if defined(__WIN32__) && !defined(__SC__)
 909     OSVERSIONINFO info;
 910     wxZeroMemory(info);
 911
 912     info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 913     if ( ::GetVersionEx(&info) )
 914     {
 915         if (majorVsn)
 916             *majorVsn = info.dwMajorVersion;
 917         if (minorVsn)
 918             *minorVsn = info.dwMinorVersion;
 919
 920         switch ( info.dwPlatformId )
 921         {
 922             case VER_PLATFORM_WIN32s:
 923                 return wxWIN32S;
 924
 925             case VER_PLATFORM_WIN32_WINDOWS:
 926                 return wxWIN95;
 927
 928             case VER_PLATFORM_WIN32_NT:
 929                 return wxWINDOWS_NT;
 930         }
 931     }
 932
 933     return wxWINDOWS; // error if we get here, return generic value
 934 #else // Win16
 935     int retValue = wxWINDOWS;
 936     #ifdef __WINDOWS_386__
 937         retValue = wxWIN386;
 938     #else
 939         #if !defined(__WATCOMC__) && !defined(GNUWIN32) && wxUSE_PENWINDOWS
 940             extern HANDLE g_hPenWin;
 941             retValue = g_hPenWin ? wxPENWINDOWS : wxWINDOWS;
 942         #endif
 943     #endif
 944
 945     if (majorVsn)
 946         *majorVsn = 3;
 947     if (minorVsn)
 948         *minorVsn = 1;
 949
 950     return retValue;
 951 #endif
 952 }
 953
 954 // ----------------------------------------------------------------------------
 955 // sleep functions
 956 // ----------------------------------------------------------------------------
 957
 958 #if wxUSE_GUI
 959
 960 #if wxUSE_TIMER
 961
 962 // Sleep for nSecs seconds. Attempt a Windows implementation using timers.
 963 static bool gs_inTimer = FALSE;
 964
 965 class wxSleepTimer : public wxTimer
 966 {
 967 public:
 968     virtual void Notify()
 969     {
 970         gs_inTimer = FALSE;
 971         Stop();
 972     }
 973 };
 974
 975 static wxTimer *wxTheSleepTimer = NULL;
 976
 977 void wxUsleep(unsigned long milliseconds)
 978 {
 979 #ifdef __WIN32__
 980     ::Sleep(milliseconds);
 981 #else // !Win32
 982     if (gs_inTimer)
 983         return;
 984
 985     wxTheSleepTimer = new wxSleepTimer;
 986     gs_inTimer = TRUE;
 987     wxTheSleepTimer->Start(milliseconds);
 988     while (gs_inTimer)
 989     {
 990         if (wxTheApp->Pending())
 991             wxTheApp->Dispatch();
 992     }
 993     delete wxTheSleepTimer;
 994     wxTheSleepTimer = NULL;
 995 #endif // Win32/!Win32
 996 }
 997
 998 void wxSleep(int nSecs)
 999 {
1000     if (gs_inTimer)
1001         return;
1002
1003     wxTheSleepTimer = new wxSleepTimer;
1004     gs_inTimer = TRUE;
1005     wxTheSleepTimer->Start(nSecs*1000);
1006     while (gs_inTimer)
1007     {
1008         if (wxTheApp->Pending())
1009             wxTheApp->Dispatch();
1010     }
1011     delete wxTheSleepTimer;
1012     wxTheSleepTimer = NULL;
1013 }
1014
1015 // Consume all events until no more left
1016 void wxFlushEvents()
1017 {
1018 //  wxYield();
1019 }
1020
1021 #endif // wxUSE_TIMER
1022
1023 #elif defined(__WIN32__) // wxUSE_GUI
1024
1025 void wxUsleep(unsigned long milliseconds)
1026 {
1027     ::Sleep(milliseconds);
1028 }
1029
1030 void wxSleep(int nSecs)
1031 {
1032     wxUsleep(1000*nSecs);
1033 }
1034
1035 #endif // wxUSE_GUI/!wxUSE_GUI
1036 #endif // __WXMICROWIN__
1037
1038 // ----------------------------------------------------------------------------
1039 // deprecated (in favour of wxLog) log functions
1040 // ----------------------------------------------------------------------------
1041
1042 #if wxUSE_GUI
1043
1044 // Output a debug mess., in a system dependent fashion.
1045 #ifndef __WXMICROWIN__
1046 void wxDebugMsg(const wxChar *fmt ...)
1047 {
1048   va_list ap;
1049   static wxChar buffer[512];
1050
1051   if (!wxTheApp->GetWantDebugOutput())
1052     return ;
1053
1054   va_start(ap, fmt);
1055
1056   wvsprintf(buffer,fmt,ap) ;
1057   OutputDebugString((LPCTSTR)buffer) ;
1058
1059   va_end(ap);
1060 }
1061
1062 // Non-fatal error: pop up message box and (possibly) continue
1063 void wxError(const wxString& msg, const wxString& title)
1064 {
1065   wxSprintf(wxBuffer, wxT("%s\nContinue?"), WXSTRINGCAST msg);
1066   if (MessageBox(NULL, (LPCTSTR)wxBuffer, (LPCTSTR)WXSTRINGCAST title,
1067              MB_ICONSTOP | MB_YESNO) == IDNO)
1068     wxExit();
1069 }
1070
1071 // Fatal error: pop up message box and abort
1072 void wxFatalError(const wxString& msg, const wxString& title)
1073 {
1074   wxSprintf(wxBuffer, wxT("%s: %s"), WXSTRINGCAST title, WXSTRINGCAST msg);
1075   FatalAppExit(0, (LPCTSTR)wxBuffer);
1076 }
1077 #endif // __WXMICROWIN__
1078
1079 // ----------------------------------------------------------------------------
1080 // functions to work with .INI files
1081 // ----------------------------------------------------------------------------
1082
1083 // Reading and writing resources (eg WIN.INI, .Xdefaults)
1084 #if wxUSE_RESOURCES
1085 bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file)
1086 {
1087   if (file != wxT(""))
1088 // Don't know what the correct cast should be, but it doesn't
1089 // compile in BC++/16-bit without this cast.
1090 #if !defined(__WIN32__)
1091     return (WritePrivateProfileString((const char*) section, (const char*) entry, (const char*) value, (const char*) file) != 0);
1092 #else
1093     return (WritePrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)value, (LPCTSTR)WXSTRINGCAST file) != 0);
1094 #endif
1095   else
1096     return (WriteProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)WXSTRINGCAST value) != 0);
1097 }
1098
1099 bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file)
1100 {
1101     wxString buf;
1102     buf.Printf(wxT("%.4f"), value);
1103
1104     return wxWriteResource(section, entry, buf, file);
1105 }
1106
1107 bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file)
1108 {
1109     wxString buf;
1110     buf.Printf(wxT("%ld"), value);
1111
1112     return wxWriteResource(section, entry, buf, file);
1113 }
1114
1115 bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file)
1116 {
1117     wxString buf;
1118     buf.Printf(wxT("%d"), value);
1119
1120     return wxWriteResource(section, entry, buf, file);
1121 }
1122
1123 bool wxGetResource(const wxString& section, const wxString& entry, wxChar **value, const wxString& file)
1124 {
1125     static const wxChar defunkt[] = wxT("$$default");
1126     if (file != wxT(""))
1127     {
1128         int n = GetPrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
1129                 (LPTSTR)wxBuffer, 1000, (LPCTSTR)WXSTRINGCAST file);
1130         if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
1131             return FALSE;
1132     }
1133     else
1134     {
1135         int n = GetProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
1136                 (LPTSTR)wxBuffer, 1000);
1137         if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
1138             return FALSE;
1139     }
1140     if (*value) delete[] (*value);
1141     *value = copystring(wxBuffer);
1142     return TRUE;
1143 }
1144
1145 bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file)
1146 {
1147     wxChar *s = NULL;
1148     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
1149     if (succ)
1150     {
1151         *value = (float)wxStrtod(s, NULL);
1152         delete[] s;
1153         return TRUE;
1154     }
1155     else return FALSE;
1156 }
1157
1158 bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file)
1159 {
1160     wxChar *s = NULL;
1161     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
1162     if (succ)
1163     {
1164         *value = wxStrtol(s, NULL, 10);
1165         delete[] s;
1166         return TRUE;
1167     }
1168     else return FALSE;
1169 }
1170
1171 bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file)
1172 {
1173     wxChar *s = NULL;
1174     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
1175     if (succ)
1176     {
1177         *value = (int)wxStrtol(s, NULL, 10);
1178         delete[] s;
1179         return TRUE;
1180     }
1181     else return FALSE;
1182 }
1183 #endif // wxUSE_RESOURCES
1184
1185 // ---------------------------------------------------------------------------
1186 // helper functions for showing a "busy" cursor
1187 // ---------------------------------------------------------------------------
1188
1189 static HCURSOR gs_wxBusyCursor = 0;     // new, busy cursor
1190 static HCURSOR gs_wxBusyCursorOld = 0;  // old cursor
1191 static int gs_wxBusyCursorCount = 0;
1192
1193 extern HCURSOR wxGetCurrentBusyCursor()
1194 {
1195     return gs_wxBusyCursor;
1196 }
1197
1198 // Set the cursor to the busy cursor for all windows
1199 void wxBeginBusyCursor(wxCursor *cursor)
1200 {
1201     if ( gs_wxBusyCursorCount++ == 0 )
1202     {
1203         gs_wxBusyCursor = (HCURSOR)cursor->GetHCURSOR();
1204 #ifndef __WXMICROWIN__
1205         gs_wxBusyCursorOld = ::SetCursor(gs_wxBusyCursor);
1206 #endif
1207     }
1208     //else: nothing to do, already set
1209 }
1210
1211 // Restore cursor to normal
1212 void wxEndBusyCursor()
1213 {
1214     wxCHECK_RET( gs_wxBusyCursorCount > 0,
1215                  wxT("no matching wxBeginBusyCursor() for wxEndBusyCursor()") );
1216
1217     if ( --gs_wxBusyCursorCount == 0 )
1218     {
1219 #ifndef __WXMICROWIN__
1220         ::SetCursor(gs_wxBusyCursorOld);
1221 #endif
1222         gs_wxBusyCursorOld = 0;
1223     }
1224 }
1225
1226 // TRUE if we're between the above two calls
1227 bool wxIsBusy()
1228 {
1229   return gs_wxBusyCursorCount > 0;
1230 }
1231
1232 // Check whether this window wants to process messages, e.g. Stop button
1233 // in long calculations.
1234 bool wxCheckForInterrupt(wxWindow *wnd)
1235 {
1236     wxCHECK( wnd, FALSE );
1237
1238     MSG msg;
1239     while ( ::PeekMessage(&msg, GetHwndOf(wnd), 0, 0, PM_REMOVE) )
1240     {
1241         ::TranslateMessage(&msg);
1242         ::DispatchMessage(&msg);
1243     }
1244
1245     return TRUE;
1246 }
1247
1248 // MSW only: get user-defined resource from the .res file.
1249 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
1250
1251 #ifndef __WXMICROWIN__
1252 wxChar *wxLoadUserResource(const wxString& resourceName, const wxString& resourceType)
1253 {
1254     HRSRC hResource = ::FindResource(wxGetInstance(), resourceName, resourceType);
1255     if ( hResource == 0 )
1256         return NULL;
1257
1258     HGLOBAL hData = ::LoadResource(wxGetInstance(), hResource);
1259     if ( hData == 0 )
1260         return NULL;
1261
1262     wxChar *theText = (wxChar *)::LockResource(hData);
1263     if ( !theText )
1264         return NULL;
1265
1266     // Not all compilers put a zero at the end of the resource (e.g. BC++ doesn't).
1267     // so we need to find the length of the resource.
1268     int len = ::SizeofResource(wxGetInstance(), hResource);
1269     wxChar  *s = new wxChar[len+1];
1270     wxStrncpy(s,theText,len);
1271     s[len]=0;
1272
1273     // wxChar *s = copystring(theText);
1274
1275     // Obsolete in WIN32
1276 #ifndef __WIN32__
1277     UnlockResource(hData);
1278 #endif
1279
1280     // No need??
1281     //  GlobalFree(hData);
1282
1283     return s;
1284 }
1285 #endif // __WXMICROWIN__
1286
1287 // ----------------------------------------------------------------------------
1288 // get display info
1289 // ----------------------------------------------------------------------------
1290
1291 // See also the wxGetMousePosition in window.cpp
1292 // Deprecated: use wxPoint wxGetMousePosition() instead
1293 void wxGetMousePosition( int* x, int* y )
1294 {
1295     POINT pt;
1296     GetCursorPos( & pt );
1297     if ( x ) *x = pt.x;
1298     if ( y ) *y = pt.y;
1299 };
1300
1301 // Return TRUE if we have a colour display
1302 bool wxColourDisplay()
1303 {
1304 #ifdef __WXMICROWIN__
1305     // MICROWIN_TODO
1306     return TRUE;
1307 #else
1308     // this function is called from wxDC ctor so it is called a *lot* of times
1309     // hence we optimize it a bit but doign the check only once
1310     //
1311     // this should be MT safe as only the GUI thread (holding the GUI mutex)
1312     // can call us
1313     static int s_isColour = -1;
1314
1315     if ( s_isColour == -1 )
1316     {
1317         ScreenHDC dc;
1318         int noCols = ::GetDeviceCaps(dc, NUMCOLORS);
1319
1320         s_isColour = (noCols == -1) || (noCols > 2);
1321     }
1322
1323     return s_isColour != 0;
1324 #endif
1325 }
1326
1327 // Returns depth of screen
1328 int wxDisplayDepth()
1329 {
1330     ScreenHDC dc;
1331     return GetDeviceCaps(dc, PLANES) * GetDeviceCaps(dc, BITSPIXEL);
1332 }
1333
1334 // Get size of display
1335 void wxDisplaySize(int *width, int *height)
1336 {
1337 #ifdef __WXMICROWIN__
1338     RECT rect;
1339     HWND hWnd = GetDesktopWindow();
1340     ::GetWindowRect(hWnd, & rect);
1341
1342     if ( width )
1343         *width = rect.right - rect.left;
1344     if ( height )
1345         *height = rect.bottom - rect.top;
1346 #else // !__WXMICROWIN__
1347     ScreenHDC dc;
1348
1349     if ( width )
1350         *width = ::GetDeviceCaps(dc, HORZRES);
1351     if ( height )
1352         *height = ::GetDeviceCaps(dc, VERTRES);
1353 #endif // __WXMICROWIN__/!__WXMICROWIN__
1354 }
1355
1356 void wxDisplaySizeMM(int *width, int *height)
1357 {
1358 #ifdef __WXMICROWIN__
1359     // MICROWIN_TODO
1360     if ( width )
1361         *width = 0;
1362     if ( height )
1363         *height = 0;
1364 #else
1365     ScreenHDC dc;
1366
1367     if ( width )
1368         *width = ::GetDeviceCaps(dc, HORZSIZE);
1369     if ( height )
1370         *height = ::GetDeviceCaps(dc, VERTSIZE);
1371 #endif
1372 }
1373
1374 void wxClientDisplayRect(int *x, int *y, int *width, int *height)
1375 {
1376 #if defined(__WIN16__) || defined(__WXMICROWIN__)
1377     *x = 0; *y = 0;
1378     wxDisplaySize(width, height);
1379 #else
1380     // Determine the desktop dimensions minus the taskbar and any other
1381     // special decorations...
1382     RECT r;
1383
1384     SystemParametersInfo(SPI_GETWORKAREA, 0, &r, 0);
1385     if (x)      *x = r.left;
1386     if (y)      *y = r.top;
1387     if (width)  *width = r.right - r.left;
1388     if (height) *height = r.bottom - r.top;
1389 #endif
1390 }
1391
1392 // ---------------------------------------------------------------------------
1393 // window information functions
1394 // ---------------------------------------------------------------------------
1395
1396 wxString WXDLLEXPORT wxGetWindowText(WXHWND hWnd)
1397 {
1398     wxString str;
1399
1400     if ( hWnd )
1401     {
1402         int len = GetWindowTextLength((HWND)hWnd) + 1;
1403         ::GetWindowText((HWND)hWnd, str.GetWriteBuf(len), len);
1404         str.UngetWriteBuf();
1405     }
1406
1407     return str;
1408 }
1409
1410 wxString WXDLLEXPORT wxGetWindowClass(WXHWND hWnd)
1411 {
1412     wxString str;
1413
1414     // MICROWIN_TODO
1415 #ifndef __WXMICROWIN__
1416     if ( hWnd )
1417     {
1418         int len = 256; // some starting value
1419
1420         for ( ;; )
1421         {
1422             int count = ::GetClassName((HWND)hWnd, str.GetWriteBuf(len), len);
1423
1424             str.UngetWriteBuf();
1425             if ( count == len )
1426             {
1427                 // the class name might have been truncated, retry with larger
1428                 // buffer
1429                 len *= 2;
1430             }
1431             else
1432             {
1433                 break;
1434             }
1435         }
1436     }
1437 #endif // !__WXMICROWIN__
1438
1439     return str;
1440 }
1441
1442 WXWORD WXDLLEXPORT wxGetWindowId(WXHWND hWnd)
1443 {
1444 #ifndef __WIN32__
1445     return (WXWORD)GetWindowWord((HWND)hWnd, GWW_ID);
1446 #else // Win32
1447     return (WXWORD)GetWindowLong((HWND)hWnd, GWL_ID);
1448 #endif // Win16/32
1449 }
1450
1451 #endif // wxUSE_GUI
1452
1453 #if wxUSE_GUI
1454
1455 // ----------------------------------------------------------------------------
1456 // Metafile helpers
1457 // ----------------------------------------------------------------------------
1458
1459 extern void PixelToHIMETRIC(LONG *x, LONG *y)
1460 {
1461     ScreenHDC hdcRef;
1462
1463     int iWidthMM = GetDeviceCaps(hdcRef, HORZSIZE),
1464         iHeightMM = GetDeviceCaps(hdcRef, VERTSIZE),
1465         iWidthPels = GetDeviceCaps(hdcRef, HORZRES),
1466         iHeightPels = GetDeviceCaps(hdcRef, VERTRES);
1467
1468     *x *= (iWidthMM * 100);
1469     *x /= iWidthPels;
1470     *y *= (iHeightMM * 100);
1471     *y /= iHeightPels;
1472 }
1473
1474 extern void HIMETRICToPixel(LONG *x, LONG *y)
1475 {
1476     ScreenHDC hdcRef;
1477
1478     int iWidthMM = GetDeviceCaps(hdcRef, HORZSIZE),
1479         iHeightMM = GetDeviceCaps(hdcRef, VERTSIZE),
1480         iWidthPels = GetDeviceCaps(hdcRef, HORZRES),
1481         iHeightPels = GetDeviceCaps(hdcRef, VERTRES);
1482
1483     *x *= iWidthPels;
1484     *x /= (iWidthMM * 100);
1485     *y *= iHeightPels;
1486     *y /= (iHeightMM * 100);
1487 }
1488
1489 #endif // wxUSE_GUI
1490
1491 #ifdef __WXMICROWIN__
1492 int wxGetOsVersion(int *majorVsn, int *minorVsn)
1493 {
1494     // MICROWIN_TODO
1495     if (majorVsn) *majorVsn = 0;
1496     if (minorVsn) *minorVsn = 0;
1497     return wxUNIX;
1498 }
1499 #endif // __WXMICROWIN__
1500
1501 // ----------------------------------------------------------------------------
1502 // Win32 codepage conversion functions
1503 // ----------------------------------------------------------------------------
1504
1505 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1506
1507 #if wxUSE_GUI
1508
1509 #include "wx/fontmap.h"
1510
1511 // VZ: the new version of wxCharsetToCodepage() is more politically correct
1512 //     and should work on other Windows versions as well but the old version is
1513 //     still needed for !wxUSE_FONTMAP || !wxUSE_GUI case
1514
1515 extern long wxEncodingToCodepage(wxFontEncoding encoding)
1516 {
1517     // translate encoding into the Windows CHARSET
1518     wxNativeEncodingInfo natveEncInfo;
1519     if ( !wxGetNativeFontEncoding(encoding, &natveEncInfo) )
1520         return -1;
1521
1522     // translate CHARSET to code page
1523     CHARSETINFO csetInfo;
1524     if ( !::TranslateCharsetInfo((DWORD *)(DWORD)natveEncInfo.charset,
1525                                  &csetInfo,
1526                                  TCI_SRCCHARSET) )
1527     {
1528         wxLogLastError(_T("TranslateCharsetInfo(TCI_SRCCHARSET)"));
1529
1530         return -1;
1531     }
1532
1533     return csetInfo.ciACP;
1534 }
1535
1536 #if wxUSE_FONTMAP
1537
1538 extern long wxCharsetToCodepage(const wxChar *name)
1539 {
1540     // first get the font encoding for this charset
1541     if ( !name )
1542         return -1;
1543
1544     wxFontEncoding enc = wxTheFontMapper->CharsetToEncoding(name, FALSE);
1545     if ( enc == wxFONTENCODING_SYSTEM )
1546         return -1;
1547
1548     // the use the helper function
1549     return wxEncodingToCodepage(enc);
1550 }
1551
1552 #endif // wxUSE_FONTMAP
1553
1554 #endif // wxUSE_GUI
1555
1556 // include old wxCharsetToCodepage() by OK if needed
1557 #if !wxUSE_GUI || !wxUSE_FONTMAP
1558
1559 #include "wx/msw/registry.h"
1560
1561 // this should work if Internet Exploiter is installed
1562 extern long wxCharsetToCodepage(const wxChar *name)
1563 {
1564     if (!name)
1565         return GetACP();
1566
1567     long CP=-1;
1568
1569     wxString cn(name);
1570     do {
1571         wxString path(wxT("MIME\\Database\\Charset\\"));
1572         path += cn;
1573         wxRegKey key(wxRegKey::HKCR, path);
1574
1575         if (!key.Exists()) break;
1576
1577         // two cases: either there's an AliasForCharset string,
1578         // or there are Codepage and InternetEncoding dwords.
1579         // The InternetEncoding gives us the actual encoding,
1580         // the Codepage just says which Windows character set to
1581         // use when displaying the data.
1582         if (key.HasValue(wxT("InternetEncoding")) &&
1583             key.QueryValue(wxT("InternetEncoding"), &CP)) break;
1584
1585         // no encoding, see if it's an alias
1586         if (!key.HasValue(wxT("AliasForCharset")) ||
1587             !key.QueryValue(wxT("AliasForCharset"), cn)) break;
1588     } while (1);
1589
1590     return CP;
1591 }
1592
1593 #endif // !wxUSE_GUI || !wxUSE_FONTMAP
1594
1595 #endif // Win32
1596