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       strDir.clear();
 386
 387       // If we have a valid HOME directory, as is used on many machines that
 388       // have unix utilities on them, we should use that.
 389       const wxChar *szHome = wxGetenv(wxT("HOME"));
 390
 391       if ( szHome != NULL )
 392       {
 393         strDir = szHome;
 394       }
 395       else // no HOME, try HOMEDRIVE/PATH
 396       {
 397           szHome = wxGetenv(wxT("HOMEDRIVE"));
 398           if ( szHome != NULL )
 399             strDir << szHome;
 400           szHome = wxGetenv(wxT("HOMEPATH"));
 401
 402           if ( szHome != NULL )
 403           {
 404             strDir << szHome;
 405
 406             // the idea is that under NT these variables have default values
 407             // of "%systemdrive%:" and "\\". As we don't want to create our
 408             // config files in the root directory of the system drive, we will
 409             // create it in our program's dir. However, if the user took care
 410             // to set HOMEPATH to something other than "\\", we suppose that he
 411             // knows what he is doing and use the supplied value.
 412             if ( wxStrcmp(szHome, wxT("\\")) == 0 )
 413               strDir.clear();
 414           }
 415       }
 416
 417       if ( strDir.empty() )
 418       {
 419           // If we have a valid USERPROFILE directory, as is the case in
 420           // Windows NT, 2000 and XP, we should use that as our home directory.
 421           szHome = wxGetenv(wxT("USERPROFILE"));
 422
 423           if ( szHome != NULL )
 424             strDir = szHome;
 425       }
 426
 427       if ( !strDir.empty() )
 428       {
 429           return strDir.c_str();
 430       }
 431       //else: fall back to the prograrm directory
 432     #else   // Win16
 433       // Win16 has no idea about home, so use the executable directory instead
 434     #endif  // WIN16/32
 435
 436     // 260 was taken from windef.h
 437     #ifndef MAX_PATH
 438       #define MAX_PATH  260
 439     #endif
 440
 441     wxString strPath;
 442     ::GetModuleFileName(::GetModuleHandle(NULL),
 443                         strPath.GetWriteBuf(MAX_PATH), MAX_PATH);
 444     strPath.UngetWriteBuf();
 445
 446     // extract the dir name
 447     wxSplitPath(strPath, &strDir, NULL, NULL);
 448
 449   #endif  // UNIX/Win
 450
 451   return strDir.c_str();
 452 }
 453
 454 wxChar *wxGetUserHome(const wxString& WXUNUSED(user))
 455 {
 456     // VZ: the old code here never worked for user != "" anyhow! Moreover, it
 457     //     returned sometimes a malloc()'d pointer, sometimes a pointer to a
 458     //     static buffer and sometimes I don't even know what.
 459     static wxString s_home;
 460
 461     return (wxChar *)wxGetHomeDir(&s_home);
 462 }
 463
 464 bool wxDirExists(const wxString& dir)
 465 {
 466 #ifdef __WXMICROWIN__
 467     return wxPathExist(dir);
 468 #elif defined(__WIN32__)
 469     DWORD attribs = GetFileAttributes(dir);
 470     return ((attribs != (DWORD)-1) && (attribs & FILE_ATTRIBUTE_DIRECTORY));
 471 #else // Win16
 472     #ifdef __BORLANDC__
 473         struct ffblk fileInfo;
 474     #else
 475         struct find_t fileInfo;
 476     #endif
 477     // In Borland findfirst has a different argument
 478     // ordering from _dos_findfirst. But _dos_findfirst
 479     // _should_ be ok in both MS and Borland... why not?
 480     #ifdef __BORLANDC__
 481         return (findfirst(dir, &fileInfo, _A_SUBDIR) == 0 &&
 482                (fileInfo.ff_attrib & _A_SUBDIR) != 0);
 483     #else
 484         return (_dos_findfirst(dir, _A_SUBDIR, &fileInfo) == 0) &&
 485                ((fileInfo.attrib & _A_SUBDIR) != 0);
 486     #endif
 487 #endif // Win32/16
 488 }
 489
 490 bool wxGetDiskSpace(const wxString& path, wxLongLong *pTotal, wxLongLong *pFree)
 491 {
 492     if ( path.empty() )
 493         return FALSE;
 494
 495 // old w32api don't have ULARGE_INTEGER
 496 #if defined(__WIN32__) && \
 497     (!defined(__GNUWIN32__) || wxCHECK_W32API_VERSION( 0, 3 ))
 498     // GetDiskFreeSpaceEx() is not available under original Win95, check for
 499     // it
 500     typedef BOOL (WINAPI *GetDiskFreeSpaceEx_t)(LPCTSTR,
 501                                                 PULARGE_INTEGER,
 502                                                 PULARGE_INTEGER,
 503                                                 PULARGE_INTEGER);
 504
 505     GetDiskFreeSpaceEx_t
 506         pGetDiskFreeSpaceEx = (GetDiskFreeSpaceEx_t)::GetProcAddress
 507                               (
 508                                 ::GetModuleHandle(_T("kernel32.dll")),
 509 #if wxUSE_UNICODE
 510                                 "GetDiskFreeSpaceExW"
 511 #else
 512                                 "GetDiskFreeSpaceExA"
 513 #endif
 514                               );
 515
 516     if ( pGetDiskFreeSpaceEx )
 517     {
 518         ULARGE_INTEGER bytesFree, bytesTotal;
 519
 520         // may pass the path as is, GetDiskFreeSpaceEx() is smart enough
 521         if ( !pGetDiskFreeSpaceEx(path,
 522                                   &bytesFree,
 523                                   &bytesTotal,
 524                                   NULL) )
 525         {
 526             wxLogLastError(_T("GetDiskFreeSpaceEx"));
 527
 528             return FALSE;
 529         }
 530
 531         // ULARGE_INTEGER is a union of a 64 bit value and a struct containing
 532         // two 32 bit fields which may be or may be not named - try to make it
 533         // compile in all cases
 534 #if defined(__BORLANDC__) && !defined(_ANONYMOUS_STRUCT)
 535         #define UL(ul) ul.u
 536 #else // anon union
 537         #define UL(ul) ul
 538 #endif
 539         if ( pTotal )
 540         {
 541             *pTotal = wxLongLong(UL(bytesTotal).HighPart, UL(bytesTotal).LowPart);
 542         }
 543
 544         if ( pFree )
 545         {
 546             *pFree = wxLongLong(UL(bytesFree).HighPart, UL(bytesFree).LowPart);
 547         }
 548     }
 549     else
 550 #endif // Win32
 551     {
 552         // there's a problem with drives larger than 2GB, GetDiskFreeSpaceEx()
 553         // should be used instead - but if it's not available, fall back on
 554         // GetDiskFreeSpace() nevertheless...
 555
 556         DWORD lSectorsPerCluster,
 557               lBytesPerSector,
 558               lNumberOfFreeClusters,
 559               lTotalNumberOfClusters;
 560
 561         // FIXME: this is wrong, we should extract the root drive from path
 562         //        instead, but this is the job for wxFileName...
 563         if ( !::GetDiskFreeSpace(path,
 564                                  &lSectorsPerCluster,
 565                                  &lBytesPerSector,
 566                                  &lNumberOfFreeClusters,
 567                                  &lTotalNumberOfClusters) )
 568         {
 569             wxLogLastError(_T("GetDiskFreeSpace"));
 570
 571             return FALSE;
 572         }
 573
 574         wxLongLong lBytesPerCluster = lSectorsPerCluster;
 575         lBytesPerCluster *= lBytesPerSector;
 576
 577         if ( pTotal )
 578         {
 579             *pTotal = lBytesPerCluster;
 580             *pTotal *= lTotalNumberOfClusters;
 581         }
 582
 583         if ( pFree )
 584         {
 585             *pFree = lBytesPerCluster;
 586             *pFree *= lNumberOfFreeClusters;
 587         }
 588     }
 589
 590     return TRUE;
 591 }
 592
 593 // ----------------------------------------------------------------------------
 594 // env vars
 595 // ----------------------------------------------------------------------------
 596
 597 bool wxGetEnv(const wxString& var, wxString *value)
 598 {
 599 #ifdef __WIN16__
 600     const wxChar* ret = wxGetenv(var);
 601     if (ret)
 602     {
 603         *value = ret;
 604         return TRUE;
 605     }
 606     else
 607         return FALSE;
 608 #else
 609     // first get the size of the buffer
 610     DWORD dwRet = ::GetEnvironmentVariable(var, NULL, 0);
 611     if ( !dwRet )
 612     {
 613         // this means that there is no such variable
 614         return FALSE;
 615     }
 616
 617     if ( value )
 618     {
 619         (void)::GetEnvironmentVariable(var, value->GetWriteBuf(dwRet), dwRet);
 620         value->UngetWriteBuf();
 621     }
 622
 623     return TRUE;
 624 #endif
 625 }
 626
 627 bool wxSetEnv(const wxString& var, const wxChar *value)
 628 {
 629     // some compilers have putenv() or _putenv() or _wputenv() but it's better
 630     // to always use Win32 function directly instead of dealing with them
 631 #if defined(__WIN32__)
 632     if ( !::SetEnvironmentVariable(var, value) )
 633     {
 634         wxLogLastError(_T("SetEnvironmentVariable"));
 635
 636         return FALSE;
 637     }
 638
 639     return TRUE;
 640 #else // no way to set env vars
 641     return FALSE;
 642 #endif
 643 }
 644
 645 // ----------------------------------------------------------------------------
 646 // process management
 647 // ----------------------------------------------------------------------------
 648
 649 #ifdef __WIN32__
 650
 651 // structure used to pass parameters from wxKill() to wxEnumFindByPidProc()
 652 struct wxFindByPidParams
 653 {
 654     wxFindByPidParams() { hwnd = 0; pid = 0; }
 655
 656     // the HWND used to return the result
 657     HWND hwnd;
 658
 659     // the PID we're looking from
 660     DWORD pid;
 661 };
 662
 663 // wxKill helper: EnumWindows() callback which is used to find the first (top
 664 // level) window belonging to the given process
 665 BOOL CALLBACK wxEnumFindByPidProc(HWND hwnd, LPARAM lParam)
 666 {
 667     DWORD pid;
 668     (void)::GetWindowThreadProcessId(hwnd, &pid);
 669
 670     wxFindByPidParams *params = (wxFindByPidParams *)lParam;
 671     if ( pid == params->pid )
 672     {
 673         // remember the window we found
 674         params->hwnd = hwnd;
 675
 676         // return FALSE to stop the enumeration
 677         return FALSE;
 678     }
 679
 680     // continue enumeration
 681     return TRUE;
 682 }
 683
 684 #endif // __WIN32__
 685
 686 int wxKill(long pid, wxSignal sig, wxKillError *krc)
 687 {
 688 #ifdef __WIN32__
 689     // get the process handle to operate on
 690     HANDLE hProcess = ::OpenProcess(SYNCHRONIZE |
 691                                     PROCESS_TERMINATE |
 692                                     PROCESS_QUERY_INFORMATION,
 693                                     FALSE, // not inheritable
 694                                     (DWORD)pid);
 695     if ( hProcess == NULL )
 696     {
 697         if ( krc )
 698         {
 699             if ( ::GetLastError() == ERROR_ACCESS_DENIED )
 700             {
 701                 *krc = wxKILL_ACCESS_DENIED;
 702             }
 703             else
 704             {
 705                 *krc = wxKILL_NO_PROCESS;
 706             }
 707         }
 708
 709         return -1;
 710     }
 711
 712     bool ok = TRUE;
 713     switch ( sig )
 714     {
 715         case wxSIGKILL:
 716             // kill the process forcefully returning -1 as error code
 717             if ( !::TerminateProcess(hProcess, (UINT)-1) )
 718             {
 719                 wxLogSysError(_("Failed to kill process %d"), pid);
 720
 721                 if ( krc )
 722                 {
 723                     // this is not supposed to happen if we could open the
 724                     // process
 725                     *krc = wxKILL_ERROR;
 726                 }
 727
 728                 ok = FALSE;
 729             }
 730             break;
 731
 732         case wxSIGNONE:
 733             // do nothing, we just want to test for process existence
 734             break;
 735
 736         default:
 737             // any other signal means "terminate"
 738             {
 739                 wxFindByPidParams params;
 740                 params.pid = (DWORD)pid;
 741
 742                 // EnumWindows() has nice semantics: it returns 0 if it found
 743                 // something or if an error occured and non zero if it
 744                 // enumerated all the window
 745                 if ( !::EnumWindows(wxEnumFindByPidProc, (LPARAM)&params) )
 746                 {
 747                     // did we find any window?
 748                     if ( params.hwnd )
 749                     {
 750                         // tell the app to close
 751                         //
 752                         // NB: this is the harshest way, the app won't have
 753                         //     opportunity to save any files, for example, but
 754                         //     this is probably what we want here. If not we
 755                         //     can also use SendMesageTimeout(WM_CLOSE)
 756                         if ( !::PostMessage(params.hwnd, WM_QUIT, 0, 0) )
 757                         {
 758                             wxLogLastError(_T("PostMessage(WM_QUIT)"));
 759                         }
 760                     }
 761                     else // it was an error then
 762                     {
 763                         wxLogLastError(_T("EnumWindows"));
 764
 765                         ok = FALSE;
 766                     }
 767                 }
 768                 else // no windows for this PID
 769                 {
 770                     if ( krc )
 771                     {
 772                         *krc = wxKILL_ERROR;
 773                     }
 774
 775                     ok = FALSE;
 776                 }
 777             }
 778     }
 779
 780     // the return code
 781     DWORD rc;
 782
 783     if ( ok )
 784     {
 785         // as we wait for a short time, we can use just WaitForSingleObject()
 786         // and not MsgWaitForMultipleObjects()
 787         switch ( ::WaitForSingleObject(hProcess, 500 /* msec */) )
 788         {
 789             case WAIT_OBJECT_0:
 790                 // process terminated
 791                 if ( !::GetExitCodeProcess(hProcess, &rc) )
 792                 {
 793                     wxLogLastError(_T("GetExitCodeProcess"));
 794                 }
 795                 break;
 796
 797             default:
 798                 wxFAIL_MSG( _T("unexpected WaitForSingleObject() return") );
 799                 // fall through
 800
 801             case WAIT_FAILED:
 802                 wxLogLastError(_T("WaitForSingleObject"));
 803                 // fall through
 804
 805             case WAIT_TIMEOUT:
 806                 if ( krc )
 807                 {
 808                     *krc = wxKILL_ERROR;
 809                 }
 810
 811                 rc = STILL_ACTIVE;
 812                 break;
 813         }
 814     }
 815     else // !ok
 816     {
 817         // just to suppress the warnings about uninitialized variable
 818         rc = 0;
 819     }
 820
 821     ::CloseHandle(hProcess);
 822
 823     // the return code is the same as from Unix kill(): 0 if killed
 824     // successfully or -1 on error
 825     if ( sig == wxSIGNONE )
 826     {
 827         if ( ok && rc == STILL_ACTIVE )
 828         {
 829             // there is such process => success
 830             return 0;
 831         }
 832     }
 833     else // not SIGNONE
 834     {
 835         if ( ok && rc != STILL_ACTIVE )
 836         {
 837             // killed => success
 838             return 0;
 839         }
 840     }
 841 #else // Win15
 842     wxFAIL_MSG( _T("not implemented") );
 843 #endif // Win32/Win16
 844
 845     // error
 846     return -1;
 847 }
 848
 849 // Execute a program in an Interactive Shell
 850 bool wxShell(const wxString& command)
 851 {
 852     wxChar *shell = wxGetenv(wxT("COMSPEC"));
 853     if ( !shell )
 854         shell = wxT("\\COMMAND.COM");
 855
 856     wxString cmd;
 857     if ( !command )
 858     {
 859         // just the shell
 860         cmd = shell;
 861     }
 862     else
 863     {
 864         // pass the command to execute to the command processor
 865         cmd.Printf(wxT("%s /c %s"), shell, command.c_str());
 866     }
 867
 868     return wxExecute(cmd, TRUE /* sync */) != 0;
 869 }
 870
 871 // ----------------------------------------------------------------------------
 872 // misc
 873 // ----------------------------------------------------------------------------
 874
 875 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
 876 long wxGetFreeMemory()
 877 {
 878 #if defined(__WIN32__) && !defined(__BORLANDC__) && !defined(__TWIN32__)
 879     MEMORYSTATUS memStatus;
 880     memStatus.dwLength = sizeof(MEMORYSTATUS);
 881     GlobalMemoryStatus(&memStatus);
 882     return memStatus.dwAvailPhys;
 883 #else
 884     return (long)GetFreeSpace(0);
 885 #endif
 886 }
 887
 888 // Emit a beeeeeep
 889 void wxBell()
 890 {
 891     ::MessageBeep((UINT)-1);        // default sound
 892 }
 893
 894 wxString wxGetOsDescription()
 895 {
 896 #ifdef __WIN32__
 897     wxString str;
 898
 899     OSVERSIONINFO info;
 900     wxZeroMemory(info);
 901
 902     info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 903     if ( ::GetVersionEx(&info) )
 904     {
 905         switch ( info.dwPlatformId )
 906         {
 907             case VER_PLATFORM_WIN32s:
 908                 str = _("Win32s on Windows 3.1");
 909                 break;
 910
 911             case VER_PLATFORM_WIN32_WINDOWS:
 912                 str.Printf(_("Windows 9%c"),
 913                            info.dwMinorVersion == 0 ? _T('5') : _T('8'));
 914                 if ( !wxIsEmpty(info.szCSDVersion) )
 915                 {
 916                     str << _T(" (") << info.szCSDVersion << _T(')');
 917                 }
 918                 break;
 919
 920             case VER_PLATFORM_WIN32_NT:
 921                 str.Printf(_T("Windows NT %lu.%lu (build %lu"),
 922                            info.dwMajorVersion,
 923                            info.dwMinorVersion,
 924                            info.dwBuildNumber);
 925                 if ( !wxIsEmpty(info.szCSDVersion) )
 926                 {
 927                     str << _T(", ") << info.szCSDVersion;
 928                 }
 929                 str << _T(')');
 930                 break;
 931         }
 932     }
 933     else
 934     {
 935         wxFAIL_MSG( _T("GetVersionEx() failed") ); // should never happen
 936     }
 937
 938     return str;
 939 #else // Win16
 940     return _("Windows 3.1");
 941 #endif // Win32/16
 942 }
 943
 944 int wxGetOsVersion(int *majorVsn, int *minorVsn)
 945 {
 946 #if defined(__WIN32__) && !defined(__SC__)
 947     static int ver = -1, major = -1, minor = -1;
 948
 949     if ( ver == -1 )
 950     {
 951         OSVERSIONINFO info;
 952         wxZeroMemory(info);
 953
 954         ver = wxWINDOWS;
 955         info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 956         if ( ::GetVersionEx(&info) )
 957         {
 958             major = info.dwMajorVersion;
 959             minor = info.dwMinorVersion;
 960
 961             switch ( info.dwPlatformId )
 962             {
 963                 case VER_PLATFORM_WIN32s:
 964                     ver = wxWIN32S;
 965                     break;
 966
 967                 case VER_PLATFORM_WIN32_WINDOWS:
 968                     ver = wxWIN95;
 969                     break;
 970
 971                 case VER_PLATFORM_WIN32_NT:
 972                     ver = wxWINDOWS_NT;
 973                     break;
 974             }
 975         }
 976     }
 977
 978     if (majorVsn && major != -1)
 979         *majorVsn = major;
 980     if (minorVsn && minor != -1)
 981         *minorVsn = minor;
 982
 983     return ver;
 984 #else // Win16
 985     int retValue = wxWINDOWS;
 986     #ifdef __WINDOWS_386__
 987         retValue = wxWIN386;
 988     #else
 989         #if !defined(__WATCOMC__) && !defined(GNUWIN32) && wxUSE_PENWINDOWS
 990             extern HANDLE g_hPenWin;
 991             retValue = g_hPenWin ? wxPENWINDOWS : wxWINDOWS;
 992         #endif
 993     #endif
 994
 995     if (majorVsn)
 996         *majorVsn = 3;
 997     if (minorVsn)
 998         *minorVsn = 1;
 999
1000     return retValue;
1001 #endif
1002 }
1003
1004 // ----------------------------------------------------------------------------
1005 // sleep functions
1006 // ----------------------------------------------------------------------------
1007
1008 #if wxUSE_GUI
1009
1010 #if wxUSE_TIMER
1011
1012 // Sleep for nSecs seconds. Attempt a Windows implementation using timers.
1013 static bool gs_inTimer = FALSE;
1014
1015 class wxSleepTimer : public wxTimer
1016 {
1017 public:
1018     virtual void Notify()
1019     {
1020         gs_inTimer = FALSE;
1021         Stop();
1022     }
1023 };
1024
1025 static wxTimer *wxTheSleepTimer = NULL;
1026
1027 void wxUsleep(unsigned long milliseconds)
1028 {
1029 #ifdef __WIN32__
1030     ::Sleep(milliseconds);
1031 #else // !Win32
1032     if (gs_inTimer)
1033         return;
1034
1035     wxTheSleepTimer = new wxSleepTimer;
1036     gs_inTimer = TRUE;
1037     wxTheSleepTimer->Start(milliseconds);
1038     while (gs_inTimer)
1039     {
1040         if (wxTheApp->Pending())
1041             wxTheApp->Dispatch();
1042     }
1043     delete wxTheSleepTimer;
1044     wxTheSleepTimer = NULL;
1045 #endif // Win32/!Win32
1046 }
1047
1048 void wxSleep(int nSecs)
1049 {
1050     if (gs_inTimer)
1051         return;
1052
1053     wxTheSleepTimer = new wxSleepTimer;
1054     gs_inTimer = TRUE;
1055     wxTheSleepTimer->Start(nSecs*1000);
1056     while (gs_inTimer)
1057     {
1058         if (wxTheApp->Pending())
1059             wxTheApp->Dispatch();
1060     }
1061     delete wxTheSleepTimer;
1062     wxTheSleepTimer = NULL;
1063 }
1064
1065 // Consume all events until no more left
1066 void wxFlushEvents()
1067 {
1068 //  wxYield();
1069 }
1070
1071 #endif // wxUSE_TIMER
1072
1073 #elif defined(__WIN32__) // wxUSE_GUI
1074
1075 void wxUsleep(unsigned long milliseconds)
1076 {
1077     ::Sleep(milliseconds);
1078 }
1079
1080 void wxSleep(int nSecs)
1081 {
1082     wxUsleep(1000*nSecs);
1083 }
1084
1085 #endif // wxUSE_GUI/!wxUSE_GUI
1086 #endif // __WXMICROWIN__
1087
1088 // ----------------------------------------------------------------------------
1089 // deprecated (in favour of wxLog) log functions
1090 // ----------------------------------------------------------------------------
1091
1092 #if WXWIN_COMPATIBILITY_2_2
1093
1094 // Output a debug mess., in a system dependent fashion.
1095 #ifndef __WXMICROWIN__
1096 void wxDebugMsg(const wxChar *fmt ...)
1097 {
1098   va_list ap;
1099   static wxChar buffer[512];
1100
1101   if (!wxTheApp->GetWantDebugOutput())
1102     return ;
1103
1104   va_start(ap, fmt);
1105
1106   wvsprintf(buffer,fmt,ap) ;
1107   OutputDebugString((LPCTSTR)buffer) ;
1108
1109   va_end(ap);
1110 }
1111
1112 // Non-fatal error: pop up message box and (possibly) continue
1113 void wxError(const wxString& msg, const wxString& title)
1114 {
1115   wxSprintf(wxBuffer, wxT("%s\nContinue?"), WXSTRINGCAST msg);
1116   if (MessageBox(NULL, (LPCTSTR)wxBuffer, (LPCTSTR)WXSTRINGCAST title,
1117              MB_ICONSTOP | MB_YESNO) == IDNO)
1118     wxExit();
1119 }
1120
1121 // Fatal error: pop up message box and abort
1122 void wxFatalError(const wxString& msg, const wxString& title)
1123 {
1124   wxSprintf(wxBuffer, wxT("%s: %s"), WXSTRINGCAST title, WXSTRINGCAST msg);
1125   FatalAppExit(0, (LPCTSTR)wxBuffer);
1126 }
1127 #endif // __WXMICROWIN__
1128
1129 #endif // WXWIN_COMPATIBILITY_2_2
1130
1131 #if wxUSE_GUI
1132
1133 // ----------------------------------------------------------------------------
1134 // functions to work with .INI files
1135 // ----------------------------------------------------------------------------
1136
1137 // Reading and writing resources (eg WIN.INI, .Xdefaults)
1138 #if wxUSE_RESOURCES
1139 bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file)
1140 {
1141   if (file != wxT(""))
1142 // Don't know what the correct cast should be, but it doesn't
1143 // compile in BC++/16-bit without this cast.
1144 #if !defined(__WIN32__)
1145     return (WritePrivateProfileString((const char*) section, (const char*) entry, (const char*) value, (const char*) file) != 0);
1146 #else
1147     return (WritePrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)value, (LPCTSTR)WXSTRINGCAST file) != 0);
1148 #endif
1149   else
1150     return (WriteProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)WXSTRINGCAST value) != 0);
1151 }
1152
1153 bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file)
1154 {
1155     wxString buf;
1156     buf.Printf(wxT("%.4f"), value);
1157
1158     return wxWriteResource(section, entry, buf, file);
1159 }
1160
1161 bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file)
1162 {
1163     wxString buf;
1164     buf.Printf(wxT("%ld"), value);
1165
1166     return wxWriteResource(section, entry, buf, file);
1167 }
1168
1169 bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file)
1170 {
1171     wxString buf;
1172     buf.Printf(wxT("%d"), value);
1173
1174     return wxWriteResource(section, entry, buf, file);
1175 }
1176
1177 bool wxGetResource(const wxString& section, const wxString& entry, wxChar **value, const wxString& file)
1178 {
1179     static const wxChar defunkt[] = wxT("$$default");
1180     if (file != wxT(""))
1181     {
1182         int n = GetPrivateProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
1183                 (LPTSTR)wxBuffer, 1000, (LPCTSTR)WXSTRINGCAST file);
1184         if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
1185             return FALSE;
1186     }
1187     else
1188     {
1189         int n = GetProfileString((LPCTSTR)WXSTRINGCAST section, (LPCTSTR)WXSTRINGCAST entry, (LPCTSTR)defunkt,
1190                 (LPTSTR)wxBuffer, 1000);
1191         if (n == 0 || wxStrcmp(wxBuffer, defunkt) == 0)
1192             return FALSE;
1193     }
1194     if (*value) delete[] (*value);
1195     *value = copystring(wxBuffer);
1196     return TRUE;
1197 }
1198
1199 bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file)
1200 {
1201     wxChar *s = NULL;
1202     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
1203     if (succ)
1204     {
1205         *value = (float)wxStrtod(s, NULL);
1206         delete[] s;
1207         return TRUE;
1208     }
1209     else return FALSE;
1210 }
1211
1212 bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file)
1213 {
1214     wxChar *s = NULL;
1215     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
1216     if (succ)
1217     {
1218         *value = wxStrtol(s, NULL, 10);
1219         delete[] s;
1220         return TRUE;
1221     }
1222     else return FALSE;
1223 }
1224
1225 bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file)
1226 {
1227     wxChar *s = NULL;
1228     bool succ = wxGetResource(section, entry, (wxChar **)&s, file);
1229     if (succ)
1230     {
1231         *value = (int)wxStrtol(s, NULL, 10);
1232         delete[] s;
1233         return TRUE;
1234     }
1235     else return FALSE;
1236 }
1237 #endif // wxUSE_RESOURCES
1238
1239 // ---------------------------------------------------------------------------
1240 // helper functions for showing a "busy" cursor
1241 // ---------------------------------------------------------------------------
1242
1243 static HCURSOR gs_wxBusyCursor = 0;     // new, busy cursor
1244 static HCURSOR gs_wxBusyCursorOld = 0;  // old cursor
1245 static int gs_wxBusyCursorCount = 0;
1246
1247 extern HCURSOR wxGetCurrentBusyCursor()
1248 {
1249     return gs_wxBusyCursor;
1250 }
1251
1252 // Set the cursor to the busy cursor for all windows
1253 void wxBeginBusyCursor(wxCursor *cursor)
1254 {
1255     if ( gs_wxBusyCursorCount++ == 0 )
1256     {
1257         gs_wxBusyCursor = (HCURSOR)cursor->GetHCURSOR();
1258 #ifndef __WXMICROWIN__
1259         gs_wxBusyCursorOld = ::SetCursor(gs_wxBusyCursor);
1260 #endif
1261     }
1262     //else: nothing to do, already set
1263 }
1264
1265 // Restore cursor to normal
1266 void wxEndBusyCursor()
1267 {
1268     wxCHECK_RET( gs_wxBusyCursorCount > 0,
1269                  wxT("no matching wxBeginBusyCursor() for wxEndBusyCursor()") );
1270
1271     if ( --gs_wxBusyCursorCount == 0 )
1272     {
1273 #ifndef __WXMICROWIN__
1274         ::SetCursor(gs_wxBusyCursorOld);
1275 #endif
1276         gs_wxBusyCursorOld = 0;
1277     }
1278 }
1279
1280 // TRUE if we're between the above two calls
1281 bool wxIsBusy()
1282 {
1283   return gs_wxBusyCursorCount > 0;
1284 }
1285
1286 // Check whether this window wants to process messages, e.g. Stop button
1287 // in long calculations.
1288 bool wxCheckForInterrupt(wxWindow *wnd)
1289 {
1290     wxCHECK( wnd, FALSE );
1291
1292     MSG msg;
1293     while ( ::PeekMessage(&msg, GetHwndOf(wnd), 0, 0, PM_REMOVE) )
1294     {
1295         ::TranslateMessage(&msg);
1296         ::DispatchMessage(&msg);
1297     }
1298
1299     return TRUE;
1300 }
1301
1302 // MSW only: get user-defined resource from the .res file.
1303 // Returns NULL or newly-allocated memory, so use delete[] to clean up.
1304
1305 #ifndef __WXMICROWIN__
1306 wxChar *wxLoadUserResource(const wxString& resourceName, const wxString& resourceType)
1307 {
1308     HRSRC hResource = ::FindResource(wxGetInstance(), resourceName, resourceType);
1309     if ( hResource == 0 )
1310         return NULL;
1311
1312     HGLOBAL hData = ::LoadResource(wxGetInstance(), hResource);
1313     if ( hData == 0 )
1314         return NULL;
1315
1316     wxChar *theText = (wxChar *)::LockResource(hData);
1317     if ( !theText )
1318         return NULL;
1319
1320     // Not all compilers put a zero at the end of the resource (e.g. BC++ doesn't).
1321     // so we need to find the length of the resource.
1322     int len = ::SizeofResource(wxGetInstance(), hResource);
1323     wxChar  *s = new wxChar[len+1];
1324     wxStrncpy(s,theText,len);
1325     s[len]=0;
1326
1327     // wxChar *s = copystring(theText);
1328
1329     // Obsolete in WIN32
1330 #ifndef __WIN32__
1331     UnlockResource(hData);
1332 #endif
1333
1334     // No need??
1335     //  GlobalFree(hData);
1336
1337     return s;
1338 }
1339 #endif // __WXMICROWIN__
1340
1341 // ----------------------------------------------------------------------------
1342 // get display info
1343 // ----------------------------------------------------------------------------
1344
1345 // See also the wxGetMousePosition in window.cpp
1346 // Deprecated: use wxPoint wxGetMousePosition() instead
1347 void wxGetMousePosition( int* x, int* y )
1348 {
1349     POINT pt;
1350     GetCursorPos( & pt );
1351     if ( x ) *x = pt.x;
1352     if ( y ) *y = pt.y;
1353 };
1354
1355 // Return TRUE if we have a colour display
1356 bool wxColourDisplay()
1357 {
1358 #ifdef __WXMICROWIN__
1359     // MICROWIN_TODO
1360     return TRUE;
1361 #else
1362     // this function is called from wxDC ctor so it is called a *lot* of times
1363     // hence we optimize it a bit but doign the check only once
1364     //
1365     // this should be MT safe as only the GUI thread (holding the GUI mutex)
1366     // can call us
1367     static int s_isColour = -1;
1368
1369     if ( s_isColour == -1 )
1370     {
1371         ScreenHDC dc;
1372         int noCols = ::GetDeviceCaps(dc, NUMCOLORS);
1373
1374         s_isColour = (noCols == -1) || (noCols > 2);
1375     }
1376
1377     return s_isColour != 0;
1378 #endif
1379 }
1380
1381 // Returns depth of screen
1382 int wxDisplayDepth()
1383 {
1384     ScreenHDC dc;
1385     return GetDeviceCaps(dc, PLANES) * GetDeviceCaps(dc, BITSPIXEL);
1386 }
1387
1388 // Get size of display
1389 void wxDisplaySize(int *width, int *height)
1390 {
1391 #ifdef __WXMICROWIN__
1392     RECT rect;
1393     HWND hWnd = GetDesktopWindow();
1394     ::GetWindowRect(hWnd, & rect);
1395
1396     if ( width )
1397         *width = rect.right - rect.left;
1398     if ( height )
1399         *height = rect.bottom - rect.top;
1400 #else // !__WXMICROWIN__
1401     ScreenHDC dc;
1402
1403     if ( width )
1404         *width = ::GetDeviceCaps(dc, HORZRES);
1405     if ( height )
1406         *height = ::GetDeviceCaps(dc, VERTRES);
1407 #endif // __WXMICROWIN__/!__WXMICROWIN__
1408 }
1409
1410 void wxDisplaySizeMM(int *width, int *height)
1411 {
1412 #ifdef __WXMICROWIN__
1413     // MICROWIN_TODO
1414     if ( width )
1415         *width = 0;
1416     if ( height )
1417         *height = 0;
1418 #else
1419     ScreenHDC dc;
1420
1421     if ( width )
1422         *width = ::GetDeviceCaps(dc, HORZSIZE);
1423     if ( height )
1424         *height = ::GetDeviceCaps(dc, VERTSIZE);
1425 #endif
1426 }
1427
1428 void wxClientDisplayRect(int *x, int *y, int *width, int *height)
1429 {
1430 #if defined(__WIN16__) || defined(__WXMICROWIN__)
1431     *x = 0; *y = 0;
1432     wxDisplaySize(width, height);
1433 #else
1434     // Determine the desktop dimensions minus the taskbar and any other
1435     // special decorations...
1436     RECT r;
1437
1438     SystemParametersInfo(SPI_GETWORKAREA, 0, &r, 0);
1439     if (x)      *x = r.left;
1440     if (y)      *y = r.top;
1441     if (width)  *width = r.right - r.left;
1442     if (height) *height = r.bottom - r.top;
1443 #endif
1444 }
1445
1446 // ---------------------------------------------------------------------------
1447 // window information functions
1448 // ---------------------------------------------------------------------------
1449
1450 wxString WXDLLEXPORT wxGetWindowText(WXHWND hWnd)
1451 {
1452     wxString str;
1453
1454     if ( hWnd )
1455     {
1456         int len = GetWindowTextLength((HWND)hWnd) + 1;
1457         ::GetWindowText((HWND)hWnd, str.GetWriteBuf(len), len);
1458         str.UngetWriteBuf();
1459     }
1460
1461     return str;
1462 }
1463
1464 wxString WXDLLEXPORT wxGetWindowClass(WXHWND hWnd)
1465 {
1466     wxString str;
1467
1468     // MICROWIN_TODO
1469 #ifndef __WXMICROWIN__
1470     if ( hWnd )
1471     {
1472         int len = 256; // some starting value
1473
1474         for ( ;; )
1475         {
1476             int count = ::GetClassName((HWND)hWnd, str.GetWriteBuf(len), len);
1477
1478             str.UngetWriteBuf();
1479             if ( count == len )
1480             {
1481                 // the class name might have been truncated, retry with larger
1482                 // buffer
1483                 len *= 2;
1484             }
1485             else
1486             {
1487                 break;
1488             }
1489         }
1490     }
1491 #endif // !__WXMICROWIN__
1492
1493     return str;
1494 }
1495
1496 WXWORD WXDLLEXPORT wxGetWindowId(WXHWND hWnd)
1497 {
1498 #ifndef __WIN32__
1499     return (WXWORD)GetWindowWord((HWND)hWnd, GWW_ID);
1500 #else // Win32
1501     return (WXWORD)GetWindowLong((HWND)hWnd, GWL_ID);
1502 #endif // Win16/32
1503 }
1504
1505 // ----------------------------------------------------------------------------
1506 // Metafile helpers
1507 // ----------------------------------------------------------------------------
1508
1509 extern void PixelToHIMETRIC(LONG *x, LONG *y)
1510 {
1511     ScreenHDC hdcRef;
1512
1513     int iWidthMM = GetDeviceCaps(hdcRef, HORZSIZE),
1514         iHeightMM = GetDeviceCaps(hdcRef, VERTSIZE),
1515         iWidthPels = GetDeviceCaps(hdcRef, HORZRES),
1516         iHeightPels = GetDeviceCaps(hdcRef, VERTRES);
1517
1518     *x *= (iWidthMM * 100);
1519     *x /= iWidthPels;
1520     *y *= (iHeightMM * 100);
1521     *y /= iHeightPels;
1522 }
1523
1524 extern void HIMETRICToPixel(LONG *x, LONG *y)
1525 {
1526     ScreenHDC hdcRef;
1527
1528     int iWidthMM = GetDeviceCaps(hdcRef, HORZSIZE),
1529         iHeightMM = GetDeviceCaps(hdcRef, VERTSIZE),
1530         iWidthPels = GetDeviceCaps(hdcRef, HORZRES),
1531         iHeightPels = GetDeviceCaps(hdcRef, VERTRES);
1532
1533     *x *= iWidthPels;
1534     *x /= (iWidthMM * 100);
1535     *y *= iHeightPels;
1536     *y /= (iHeightMM * 100);
1537 }
1538
1539 #endif // wxUSE_GUI
1540
1541 #ifdef __WXMICROWIN__
1542 int wxGetOsVersion(int *majorVsn, int *minorVsn)
1543 {
1544     // MICROWIN_TODO
1545     if (majorVsn) *majorVsn = 0;
1546     if (minorVsn) *minorVsn = 0;
1547     return wxUNIX;
1548 }
1549 #endif // __WXMICROWIN__
1550
1551 // ----------------------------------------------------------------------------
1552 // Win32 codepage conversion functions
1553 // ----------------------------------------------------------------------------
1554
1555 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
1556
1557 // wxGetNativeFontEncoding() doesn't exist neither in wxBase nor in wxUniv
1558 #if wxUSE_GUI && !defined(__WXUNIVERSAL__)
1559
1560 #include "wx/fontmap.h"
1561
1562 // VZ: the new version of wxCharsetToCodepage() is more politically correct
1563 //     and should work on other Windows versions as well but the old version is
1564 //     still needed for !wxUSE_FONTMAP || !wxUSE_GUI case
1565
1566 extern long wxEncodingToCodepage(wxFontEncoding encoding)
1567 {
1568     // translate encoding into the Windows CHARSET
1569     wxNativeEncodingInfo natveEncInfo;
1570     if ( !wxGetNativeFontEncoding(encoding, &natveEncInfo) )
1571         return -1;
1572
1573     // translate CHARSET to code page
1574     CHARSETINFO csetInfo;
1575     if ( !::TranslateCharsetInfo((DWORD *)(DWORD)natveEncInfo.charset,
1576                                  &csetInfo,
1577                                  TCI_SRCCHARSET) )
1578     {
1579         wxLogLastError(_T("TranslateCharsetInfo(TCI_SRCCHARSET)"));
1580
1581         return -1;
1582     }
1583
1584     return csetInfo.ciACP;
1585 }
1586
1587 #if wxUSE_FONTMAP
1588
1589 extern long wxCharsetToCodepage(const wxChar *name)
1590 {
1591     // first get the font encoding for this charset
1592     if ( !name )
1593         return -1;
1594
1595     wxFontEncoding enc = wxTheFontMapper->CharsetToEncoding(name, FALSE);
1596     if ( enc == wxFONTENCODING_SYSTEM )
1597         return -1;
1598
1599     // the use the helper function
1600     return wxEncodingToCodepage(enc);
1601 }
1602
1603 #endif // wxUSE_FONTMAP
1604
1605 #endif // wxUSE_GUI
1606
1607 // include old wxCharsetToCodepage() by OK if needed
1608 #if !wxUSE_GUI || !wxUSE_FONTMAP
1609
1610 #include "wx/msw/registry.h"
1611
1612 // this should work if Internet Exploiter is installed
1613 extern long wxCharsetToCodepage(const wxChar *name)
1614 {
1615     if (!name)
1616         return GetACP();
1617
1618     long CP=-1;
1619
1620     wxString cn(name);
1621     do {
1622         wxString path(wxT("MIME\\Database\\Charset\\"));
1623         path += cn;
1624         wxRegKey key(wxRegKey::HKCR, path);
1625
1626         if (!key.Exists()) break;
1627
1628         // two cases: either there's an AliasForCharset string,
1629         // or there are Codepage and InternetEncoding dwords.
1630         // The InternetEncoding gives us the actual encoding,
1631         // the Codepage just says which Windows character set to
1632         // use when displaying the data.
1633         if (key.HasValue(wxT("InternetEncoding")) &&
1634             key.QueryValue(wxT("InternetEncoding"), &CP)) break;
1635
1636         // no encoding, see if it's an alias
1637         if (!key.HasValue(wxT("AliasForCharset")) ||
1638             !key.QueryValue(wxT("AliasForCharset"), cn)) break;
1639     } while (1);
1640
1641     return CP;
1642 }
1643
1644 #endif // !wxUSE_GUI || !wxUSE_FONTMAP
1645
1646 #endif // Win32
1647