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[wxWidgets.git] / src / msw / utils.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/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
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 // For compilers that support precompilation, includes "wx.h".
21 #include "wx/wxprec.h"
22
23 #ifdef __BORLANDC__
24 #pragma hdrstop
25 #endif
26
27 #ifndef WX_PRECOMP
28 #include "wx/utils.h"
29 #include "wx/app.h"
30 #include "wx/intl.h"
31 #include "wx/log.h"
32 #endif //WX_PRECOMP
33
34 #include "wx/msw/registry.h"
35 #include "wx/apptrait.h"
36 #include "wx/dynlib.h"
37 #include "wx/dynload.h"
38 #include "wx/scopeguard.h"
39 #include "wx/filename.h"
40
41 #include "wx/confbase.h" // for wxExpandEnvVars()
42
43 #include "wx/msw/private.h" // includes <windows.h>
44 #include "wx/msw/private/hiddenwin.h"
45 #include "wx/msw/missing.h" // for CHARSET_HANGUL
46
47 #if defined(__CYGWIN__)
48 //CYGWIN gives annoying warning about runtime stuff if we don't do this
49 # define USE_SYS_TYPES_FD_SET
50 # include <sys/types.h>
51 #endif
52
53 // Doesn't work with Cygwin at present
54 #if wxUSE_SOCKETS && (defined(__GNUWIN32_OLD__) || defined(__WXWINCE__) || defined(__CYGWIN32__))
55 // apparently we need to include winsock.h to get WSADATA and other stuff
56 // used in wxGetFullHostName() with the old mingw32 versions
57 #include <winsock.h>
58 #endif
59
60 #if !defined(__GNUWIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
61 #include <direct.h>
62
63 #include <dos.h>
64 #endif //GNUWIN32
65
66 #if defined(__CYGWIN__)
67 #include <sys/unistd.h>
68 #include <sys/stat.h>
69 #include <sys/cygwin.h> // for cygwin_conv_path()
70 // and cygwin_conv_to_full_win32_path()
71 #include <cygwin/version.h>
72 #endif //GNUWIN32
73
74 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
75 // this (3.1 I believe) and how to test for it.
76 // If this works for Borland 4.0 as well, then no worries.
77 #include <dir.h>
78 #endif
79
80 // VZ: there is some code using NetXXX() functions to get the full user name:
81 // I don't think it's a good idea because they don't work under Win95 and
82 // seem to return the same as wxGetUserId() under NT. If you really want
83 // to use them, just #define USE_NET_API
84 #undef USE_NET_API
85
86 #ifdef USE_NET_API
87 #include <lm.h>
88 #endif // USE_NET_API
89
90 #if defined(__WIN32__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
91 #ifndef __UNIX__
92 #include <io.h>
93 #endif
94
95 #ifndef __GNUWIN32__
96 #include <shellapi.h>
97 #endif
98 #endif
99
100 #ifndef __WATCOMC__
101 #if !(defined(_MSC_VER) && (_MSC_VER > 800))
102 #include <errno.h>
103 #endif
104 #endif
105
106 // For wxKillAllChildren
107 #include <tlhelp32.h>
108
109 // ----------------------------------------------------------------------------
110 // constants
111 // ----------------------------------------------------------------------------
112
113 // In the WIN.INI file
114 #if (!defined(USE_NET_API) && !defined(__WXWINCE__)) || defined(__WXMICROWIN__)
115 static const wxChar WX_SECTION[] = wxT("wxWindows");
116 #endif
117
118 #if (!defined(USE_NET_API) && !defined(__WXWINCE__))
119 static const wxChar eUSERNAME[] = wxT("UserName");
120 #endif
121
122 WXDLLIMPEXP_DATA_BASE(const wxChar *) wxUserResourceStr = wxT("TEXT");
123
124 // ============================================================================
125 // implementation
126 // ============================================================================
127
128 // ----------------------------------------------------------------------------
129 // get host name and related
130 // ----------------------------------------------------------------------------
131
132 // Get hostname only (without domain name)
133 bool wxGetHostName(wxChar *buf, int maxSize)
134 {
135 #if defined(__WXWINCE__)
136 // GetComputerName() is not supported but the name seems to be stored in
137 // this location in the registry, at least for PPC2003 and WM5
138 wxString hostName;
139 wxRegKey regKey(wxRegKey::HKLM, wxT("Ident"));
140 if ( !regKey.HasValue(wxT("Name")) ||
141 !regKey.QueryValue(wxT("Name"), hostName) )
142 return false;
143
144 wxStrlcpy(buf, hostName.wx_str(), maxSize);
145 #else // !__WXWINCE__
146 DWORD nSize = maxSize;
147 if ( !::GetComputerName(buf, &nSize) )
148 {
149 wxLogLastError(wxT("GetComputerName"));
150
151 return false;
152 }
153 #endif // __WXWINCE__/!__WXWINCE__
154
155 return true;
156 }
157
158 // get full hostname (with domain name if possible)
159 bool wxGetFullHostName(wxChar *buf, int maxSize)
160 {
161 #if !defined( __WXMICROWIN__) && wxUSE_DYNLIB_CLASS && wxUSE_SOCKETS
162 // TODO should use GetComputerNameEx() when available
163
164 // we don't want to always link with Winsock DLL as we might not use it at
165 // all, so load it dynamically here if needed (and don't complain if it is
166 // missing, we handle this)
167 wxLogNull noLog;
168
169 wxDynamicLibrary dllWinsock(wxT("ws2_32.dll"), wxDL_VERBATIM);
170 if ( dllWinsock.IsLoaded() )
171 {
172 typedef int (PASCAL *WSAStartup_t)(WORD, WSADATA *);
173 typedef int (PASCAL *gethostname_t)(char *, int);
174 typedef hostent* (PASCAL *gethostbyname_t)(const char *);
175 typedef hostent* (PASCAL *gethostbyaddr_t)(const char *, int , int);
176 typedef int (PASCAL *WSACleanup_t)(void);
177
178 #define LOAD_WINSOCK_FUNC(func) \
179 func ## _t \
180 pfn ## func = (func ## _t)dllWinsock.GetSymbol(wxT(#func))
181
182 LOAD_WINSOCK_FUNC(WSAStartup);
183
184 WSADATA wsa;
185 if ( pfnWSAStartup && pfnWSAStartup(MAKEWORD(1, 1), &wsa) == 0 )
186 {
187 LOAD_WINSOCK_FUNC(gethostname);
188
189 wxString host;
190 if ( pfngethostname )
191 {
192 char bufA[256];
193 if ( pfngethostname(bufA, WXSIZEOF(bufA)) == 0 )
194 {
195 // gethostname() won't usually include the DNS domain name,
196 // for this we need to work a bit more
197 if ( !strchr(bufA, '.') )
198 {
199 LOAD_WINSOCK_FUNC(gethostbyname);
200
201 struct hostent *pHostEnt = pfngethostbyname
202 ? pfngethostbyname(bufA)
203 : NULL;
204
205 if ( pHostEnt )
206 {
207 // Windows will use DNS internally now
208 LOAD_WINSOCK_FUNC(gethostbyaddr);
209
210 pHostEnt = pfngethostbyaddr
211 ? pfngethostbyaddr(pHostEnt->h_addr,
212 4, AF_INET)
213 : NULL;
214 }
215
216 if ( pHostEnt )
217 {
218 host = wxString::FromAscii(pHostEnt->h_name);
219 }
220 }
221 }
222 }
223
224 LOAD_WINSOCK_FUNC(WSACleanup);
225 if ( pfnWSACleanup )
226 pfnWSACleanup();
227
228
229 if ( !host.empty() )
230 {
231 wxStrlcpy(buf, host.c_str(), maxSize);
232
233 return true;
234 }
235 }
236 }
237 #endif // !__WXMICROWIN__
238
239 return wxGetHostName(buf, maxSize);
240 }
241
242 // Get user ID e.g. jacs
243 bool wxGetUserId(wxChar *WXUNUSED_IN_WINCE(buf),
244 int WXUNUSED_IN_WINCE(maxSize))
245 {
246 #if defined(__WXWINCE__)
247 // TODO-CE
248 return false;
249 #else
250 DWORD nSize = maxSize;
251 if ( ::GetUserName(buf, &nSize) == 0 )
252 {
253 // actually, it does happen on Win9x if the user didn't log on
254 DWORD res = ::GetEnvironmentVariable(wxT("username"), buf, maxSize);
255 if ( res == 0 )
256 {
257 // not found
258 return false;
259 }
260 }
261
262 return true;
263 #endif
264 }
265
266 // Get user name e.g. Julian Smart
267 bool wxGetUserName(wxChar *buf, int maxSize)
268 {
269 wxCHECK_MSG( buf && ( maxSize > 0 ), false,
270 wxT("empty buffer in wxGetUserName") );
271 #if defined(__WXWINCE__) && wxUSE_REGKEY
272 wxLogNull noLog;
273 wxRegKey key(wxRegKey::HKCU, wxT("ControlPanel\\Owner"));
274 if(!key.Open(wxRegKey::Read))
275 return false;
276 wxString name;
277 if(!key.QueryValue(wxT("Owner"),name))
278 return false;
279 wxStrlcpy(buf, name.c_str(), maxSize);
280 return true;
281 #elif defined(USE_NET_API)
282 CHAR szUserName[256];
283 if ( !wxGetUserId(szUserName, WXSIZEOF(szUserName)) )
284 return false;
285
286 // TODO how to get the domain name?
287 CHAR *szDomain = "";
288
289 // the code is based on the MSDN example (also see KB article Q119670)
290 WCHAR wszUserName[256]; // Unicode user name
291 WCHAR wszDomain[256];
292 LPBYTE ComputerName;
293
294 USER_INFO_2 *ui2; // User structure
295
296 // Convert ANSI user name and domain to Unicode
297 MultiByteToWideChar( CP_ACP, 0, szUserName, strlen(szUserName)+1,
298 wszUserName, WXSIZEOF(wszUserName) );
299 MultiByteToWideChar( CP_ACP, 0, szDomain, strlen(szDomain)+1,
300 wszDomain, WXSIZEOF(wszDomain) );
301
302 // Get the computer name of a DC for the domain.
303 if ( NetGetDCName( NULL, wszDomain, &ComputerName ) != NERR_Success )
304 {
305 wxLogError(wxT("Cannot find domain controller"));
306
307 goto error;
308 }
309
310 // Look up the user on the DC
311 NET_API_STATUS status = NetUserGetInfo( (LPWSTR)ComputerName,
312 (LPWSTR)&wszUserName,
313 2, // level - we want USER_INFO_2
314 (LPBYTE *) &ui2 );
315 switch ( status )
316 {
317 case NERR_Success:
318 // ok
319 break;
320
321 case NERR_InvalidComputer:
322 wxLogError(wxT("Invalid domain controller name."));
323
324 goto error;
325
326 case NERR_UserNotFound:
327 wxLogError(wxT("Invalid user name '%s'."), szUserName);
328
329 goto error;
330
331 default:
332 wxLogSysError(wxT("Can't get information about user"));
333
334 goto error;
335 }
336
337 // Convert the Unicode full name to ANSI
338 WideCharToMultiByte( CP_ACP, 0, ui2->usri2_full_name, -1,
339 buf, maxSize, NULL, NULL );
340
341 return true;
342
343 error:
344 wxLogError(wxT("Couldn't look up full user name."));
345
346 return false;
347 #else // !USE_NET_API
348 // Could use NIS, MS-Mail or other site specific programs
349 // Use wxWidgets configuration data
350 bool ok = GetProfileString(WX_SECTION, eUSERNAME, wxEmptyString, buf, maxSize - 1) != 0;
351 if ( !ok )
352 {
353 ok = wxGetUserId(buf, maxSize);
354 }
355
356 if ( !ok )
357 {
358 wxStrlcpy(buf, wxT("Unknown User"), maxSize);
359 }
360
361 return true;
362 #endif // Win32/16
363 }
364
365 const wxChar* wxGetHomeDir(wxString *pstr)
366 {
367 wxString& strDir = *pstr;
368
369 // first branch is for Cygwin
370 #if defined(__UNIX__) && !defined(__WINE__)
371 const wxChar *szHome = wxGetenv(wxT("HOME"));
372 if ( szHome == NULL ) {
373 // we're homeless...
374 wxLogWarning(_("can't find user's HOME, using current directory."));
375 strDir = wxT(".");
376 }
377 else
378 strDir = szHome;
379
380 // add a trailing slash if needed
381 if ( strDir.Last() != wxT('/') )
382 strDir << wxT('/');
383
384 #ifdef __CYGWIN__
385 // Cygwin returns unix type path but that does not work well
386 static wxChar windowsPath[MAX_PATH];
387 #if CYGWIN_VERSION_DLL_MAJOR >= 1007
388 cygwin_conv_path(CCP_POSIX_TO_WIN_W, strDir, windowsPath, MAX_PATH);
389 #else
390 cygwin_conv_to_full_win32_path(strDir, windowsPath);
391 #endif
392 strDir = windowsPath;
393 #endif
394 #elif defined(__WXWINCE__)
395 strDir = wxT("\\");
396 #else
397 strDir.clear();
398
399 // If we have a valid HOME directory, as is used on many machines that
400 // have unix utilities on them, we should use that.
401 const wxChar *szHome = wxGetenv(wxT("HOME"));
402
403 if ( szHome != NULL )
404 {
405 strDir = szHome;
406 }
407 else // no HOME, try HOMEDRIVE/PATH
408 {
409 szHome = wxGetenv(wxT("HOMEDRIVE"));
410 if ( szHome != NULL )
411 strDir << szHome;
412 szHome = wxGetenv(wxT("HOMEPATH"));
413
414 if ( szHome != NULL )
415 {
416 strDir << szHome;
417
418 // the idea is that under NT these variables have default values
419 // of "%systemdrive%:" and "\\". As we don't want to create our
420 // config files in the root directory of the system drive, we will
421 // create it in our program's dir. However, if the user took care
422 // to set HOMEPATH to something other than "\\", we suppose that he
423 // knows what he is doing and use the supplied value.
424 if ( wxStrcmp(szHome, wxT("\\")) == 0 )
425 strDir.clear();
426 }
427 }
428
429 if ( strDir.empty() )
430 {
431 // If we have a valid USERPROFILE directory, as is the case in
432 // Windows NT, 2000 and XP, we should use that as our home directory.
433 szHome = wxGetenv(wxT("USERPROFILE"));
434
435 if ( szHome != NULL )
436 strDir = szHome;
437 }
438
439 if ( !strDir.empty() )
440 {
441 // sometimes the value of HOME may be "%USERPROFILE%", so reexpand the
442 // value once again, it shouldn't hurt anyhow
443 strDir = wxExpandEnvVars(strDir);
444 }
445 else // fall back to the program directory
446 {
447 // extract the directory component of the program file name
448 wxFileName::SplitPath(wxGetFullModuleName(), &strDir, NULL, NULL);
449 }
450 #endif // UNIX/Win
451
452 return strDir.c_str();
453 }
454
455 wxString wxGetUserHome(const wxString& user)
456 {
457 wxString home;
458
459 if ( user.empty() || user == wxGetUserId() )
460 wxGetHomeDir(&home);
461
462 return home;
463 }
464
465 bool wxGetDiskSpace(const wxString& WXUNUSED_IN_WINCE(path),
466 wxDiskspaceSize_t *WXUNUSED_IN_WINCE(pTotal),
467 wxDiskspaceSize_t *WXUNUSED_IN_WINCE(pFree))
468 {
469 #ifdef __WXWINCE__
470 // TODO-CE
471 return false;
472 #else
473 if ( path.empty() )
474 return false;
475
476 // old w32api don't have ULARGE_INTEGER
477 #if defined(__WIN32__) && \
478 (!defined(__GNUWIN32__) || wxCHECK_W32API_VERSION( 0, 3 ))
479 // GetDiskFreeSpaceEx() is not available under original Win95, check for
480 // it
481 typedef BOOL (WINAPI *GetDiskFreeSpaceEx_t)(LPCTSTR,
482 PULARGE_INTEGER,
483 PULARGE_INTEGER,
484 PULARGE_INTEGER);
485
486 GetDiskFreeSpaceEx_t
487 pGetDiskFreeSpaceEx = (GetDiskFreeSpaceEx_t)::GetProcAddress
488 (
489 ::GetModuleHandle(wxT("kernel32.dll")),
490 #if wxUSE_UNICODE
491 "GetDiskFreeSpaceExW"
492 #else
493 "GetDiskFreeSpaceExA"
494 #endif
495 );
496
497 if ( pGetDiskFreeSpaceEx )
498 {
499 ULARGE_INTEGER bytesFree, bytesTotal;
500
501 // may pass the path as is, GetDiskFreeSpaceEx() is smart enough
502 if ( !pGetDiskFreeSpaceEx(path.t_str(),
503 &bytesFree,
504 &bytesTotal,
505 NULL) )
506 {
507 wxLogLastError(wxT("GetDiskFreeSpaceEx"));
508
509 return false;
510 }
511
512 // ULARGE_INTEGER is a union of a 64 bit value and a struct containing
513 // two 32 bit fields which may be or may be not named - try to make it
514 // compile in all cases
515 #if defined(__BORLANDC__) && !defined(_ANONYMOUS_STRUCT)
516 #define UL(ul) ul.u
517 #else // anon union
518 #define UL(ul) ul
519 #endif
520 if ( pTotal )
521 {
522 #if wxUSE_LONGLONG
523 *pTotal = wxDiskspaceSize_t(UL(bytesTotal).HighPart, UL(bytesTotal).LowPart);
524 #else
525 *pTotal = wxDiskspaceSize_t(UL(bytesTotal).LowPart);
526 #endif
527 }
528
529 if ( pFree )
530 {
531 #if wxUSE_LONGLONG
532 *pFree = wxLongLong(UL(bytesFree).HighPart, UL(bytesFree).LowPart);
533 #else
534 *pFree = wxDiskspaceSize_t(UL(bytesFree).LowPart);
535 #endif
536 }
537 }
538 else
539 #endif // Win32
540 {
541 // there's a problem with drives larger than 2GB, GetDiskFreeSpaceEx()
542 // should be used instead - but if it's not available, fall back on
543 // GetDiskFreeSpace() nevertheless...
544
545 DWORD lSectorsPerCluster,
546 lBytesPerSector,
547 lNumberOfFreeClusters,
548 lTotalNumberOfClusters;
549
550 // FIXME: this is wrong, we should extract the root drive from path
551 // instead, but this is the job for wxFileName...
552 if ( !::GetDiskFreeSpace(path.t_str(),
553 &lSectorsPerCluster,
554 &lBytesPerSector,
555 &lNumberOfFreeClusters,
556 &lTotalNumberOfClusters) )
557 {
558 wxLogLastError(wxT("GetDiskFreeSpace"));
559
560 return false;
561 }
562
563 wxDiskspaceSize_t lBytesPerCluster = (wxDiskspaceSize_t) lSectorsPerCluster;
564 lBytesPerCluster *= lBytesPerSector;
565
566 if ( pTotal )
567 {
568 *pTotal = lBytesPerCluster;
569 *pTotal *= lTotalNumberOfClusters;
570 }
571
572 if ( pFree )
573 {
574 *pFree = lBytesPerCluster;
575 *pFree *= lNumberOfFreeClusters;
576 }
577 }
578
579 return true;
580 #endif
581 // __WXWINCE__
582 }
583
584 // ----------------------------------------------------------------------------
585 // env vars
586 // ----------------------------------------------------------------------------
587
588 bool wxGetEnv(const wxString& WXUNUSED_IN_WINCE(var),
589 wxString *WXUNUSED_IN_WINCE(value))
590 {
591 #ifdef __WXWINCE__
592 // no environment variables under CE
593 return false;
594 #else // Win32
595 // first get the size of the buffer
596 DWORD dwRet = ::GetEnvironmentVariable(var.t_str(), NULL, 0);
597 if ( !dwRet )
598 {
599 // this means that there is no such variable
600 return false;
601 }
602
603 if ( value )
604 {
605 (void)::GetEnvironmentVariable(var.t_str(),
606 wxStringBuffer(*value, dwRet),
607 dwRet);
608 }
609
610 return true;
611 #endif // WinCE/32
612 }
613
614 bool wxDoSetEnv(const wxString& var, const wxChar *value)
615 {
616 #ifdef __WXWINCE__
617 // no environment variables under CE
618 wxUnusedVar(var);
619 wxUnusedVar(value);
620 return false;
621 #else // !__WXWINCE__
622 // update the CRT environment if possible as people expect getenv() to also
623 // work and it is not affected by Win32 SetEnvironmentVariable() call (OTOH
624 // the CRT does use Win32 call to update the process environment block so
625 // there is no need to call it)
626 //
627 // TODO: add checks for the other compilers (and update wxSetEnv()
628 // documentation in interface/wx/utils.h accordingly)
629 #if defined(__VISUALC__) || defined(__MINGW32__)
630 // notice that Microsoft _putenv() has different semantics from POSIX
631 // function with almost the same name: in particular it makes a copy of the
632 // string instead of using it as part of environment so we can safely call
633 // it here without going through all the troubles with wxSetEnvModule as in
634 // src/unix/utilsunx.cpp
635 wxString envstr = var;
636 envstr += '=';
637 if ( value )
638 envstr += value;
639 _tputenv(envstr.t_str());
640 #else // other compiler
641 if ( !::SetEnvironmentVariable(var.t_str(), value) )
642 {
643 wxLogLastError(wxT("SetEnvironmentVariable"));
644
645 return false;
646 }
647 #endif // compiler
648
649 return true;
650 #endif // __WXWINCE__/!__WXWINCE__
651 }
652
653 bool wxSetEnv(const wxString& variable, const wxString& value)
654 {
655 return wxDoSetEnv(variable, value.t_str());
656 }
657
658 bool wxUnsetEnv(const wxString& variable)
659 {
660 return wxDoSetEnv(variable, NULL);
661 }
662
663 // ----------------------------------------------------------------------------
664 // process management
665 // ----------------------------------------------------------------------------
666
667 // structure used to pass parameters from wxKill() to wxEnumFindByPidProc()
668 struct wxFindByPidParams
669 {
670 wxFindByPidParams() { hwnd = 0; pid = 0; }
671
672 // the HWND used to return the result
673 HWND hwnd;
674
675 // the PID we're looking from
676 DWORD pid;
677
678 wxDECLARE_NO_COPY_CLASS(wxFindByPidParams);
679 };
680
681 // wxKill helper: EnumWindows() callback which is used to find the first (top
682 // level) window belonging to the given process
683 BOOL CALLBACK wxEnumFindByPidProc(HWND hwnd, LPARAM lParam)
684 {
685 DWORD pid;
686 (void)::GetWindowThreadProcessId(hwnd, &pid);
687
688 wxFindByPidParams *params = (wxFindByPidParams *)lParam;
689 if ( pid == params->pid )
690 {
691 // remember the window we found
692 params->hwnd = hwnd;
693
694 // return FALSE to stop the enumeration
695 return FALSE;
696 }
697
698 // continue enumeration
699 return TRUE;
700 }
701
702 int wxKillAllChildren(long pid, wxSignal sig, wxKillError *krc);
703
704 int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
705 {
706 if (flags & wxKILL_CHILDREN)
707 wxKillAllChildren(pid, sig, krc);
708
709 // get the process handle to operate on
710 DWORD dwAccess = PROCESS_QUERY_INFORMATION | SYNCHRONIZE;
711 if ( sig == wxSIGKILL )
712 dwAccess |= PROCESS_TERMINATE;
713
714 HANDLE hProcess = ::OpenProcess(dwAccess, FALSE, (DWORD)pid);
715 if ( hProcess == NULL )
716 {
717 if ( krc )
718 {
719 // recognize wxKILL_ACCESS_DENIED as special because this doesn't
720 // mean that the process doesn't exist and this is important for
721 // wxProcess::Exists()
722 *krc = ::GetLastError() == ERROR_ACCESS_DENIED
723 ? wxKILL_ACCESS_DENIED
724 : wxKILL_NO_PROCESS;
725 }
726
727 return -1;
728 }
729
730 wxON_BLOCK_EXIT1(::CloseHandle, hProcess);
731
732 // Default timeout for waiting for the process termination after killing
733 // it. It should be long enough to allow the process to terminate even on a
734 // busy system but short enough to avoid blocking the main thread for too
735 // long.
736 DWORD waitTimeout = 500; // ms
737
738 bool ok = true;
739 switch ( sig )
740 {
741 case wxSIGKILL:
742 // kill the process forcefully returning -1 as error code
743 if ( !::TerminateProcess(hProcess, (UINT)-1) )
744 {
745 wxLogSysError(_("Failed to kill process %d"), pid);
746
747 if ( krc )
748 {
749 // this is not supposed to happen if we could open the
750 // process
751 *krc = wxKILL_ERROR;
752 }
753
754 ok = false;
755 }
756 break;
757
758 case wxSIGNONE:
759 // Opening the process handle may succeed for a process even if it
760 // doesn't run any more (typically because open handles to it still
761 // exist elsewhere, possibly in this process itself if we're
762 // killing a child process) so we still need check if it hasn't
763 // terminated yet but, unlike when killing it, we don't need to
764 // wait for any time at all.
765 waitTimeout = 0;
766 break;
767
768 default:
769 // any other signal means "terminate"
770 {
771 wxFindByPidParams params;
772 params.pid = (DWORD)pid;
773
774 // EnumWindows() has nice semantics: it returns 0 if it found
775 // something or if an error occurred and non zero if it
776 // enumerated all the window
777 if ( !::EnumWindows(wxEnumFindByPidProc, (LPARAM)&params) )
778 {
779 // did we find any window?
780 if ( params.hwnd )
781 {
782 // tell the app to close
783 //
784 // NB: this is the harshest way, the app won't have an
785 // opportunity to save any files, for example, but
786 // this is probably what we want here. If not we
787 // can also use SendMesageTimeout(WM_CLOSE)
788 if ( !::PostMessage(params.hwnd, WM_QUIT, 0, 0) )
789 {
790 wxLogLastError(wxT("PostMessage(WM_QUIT)"));
791 }
792 }
793 else // it was an error then
794 {
795 wxLogLastError(wxT("EnumWindows"));
796
797 ok = false;
798 }
799 }
800 else // no windows for this PID
801 {
802 if ( krc )
803 *krc = wxKILL_ERROR;
804
805 ok = false;
806 }
807 }
808 }
809
810 // the return code
811 if ( ok )
812 {
813 // as we wait for a short time, we can use just WaitForSingleObject()
814 // and not MsgWaitForMultipleObjects()
815 switch ( ::WaitForSingleObject(hProcess, waitTimeout) )
816 {
817 case WAIT_OBJECT_0:
818 // Process terminated: normally this indicates that we
819 // successfully killed it but when testing for the process
820 // existence, this means failure.
821 if ( sig == wxSIGNONE )
822 {
823 if ( krc )
824 *krc = wxKILL_NO_PROCESS;
825
826 ok = false;
827 }
828 break;
829
830 default:
831 wxFAIL_MSG( wxT("unexpected WaitForSingleObject() return") );
832 // fall through
833
834 case WAIT_FAILED:
835 wxLogLastError(wxT("WaitForSingleObject"));
836 // fall through
837
838 case WAIT_TIMEOUT:
839 // Process didn't terminate: normally this is a failure but not
840 // when we're just testing for its existence.
841 if ( sig != wxSIGNONE )
842 {
843 if ( krc )
844 *krc = wxKILL_ERROR;
845
846 ok = false;
847 }
848 break;
849 }
850 }
851
852
853 // the return code is the same as from Unix kill(): 0 if killed
854 // successfully or -1 on error
855 if ( !ok )
856 return -1;
857
858 if ( krc )
859 *krc = wxKILL_OK;
860
861 return 0;
862 }
863
864 typedef HANDLE (WINAPI *CreateToolhelp32Snapshot_t)(DWORD,DWORD);
865 typedef BOOL (WINAPI *Process32_t)(HANDLE,LPPROCESSENTRY32);
866
867 CreateToolhelp32Snapshot_t lpfCreateToolhelp32Snapshot;
868 Process32_t lpfProcess32First, lpfProcess32Next;
869
870 static void InitToolHelp32()
871 {
872 static bool s_initToolHelpDone = false;
873
874 if (s_initToolHelpDone)
875 return;
876
877 s_initToolHelpDone = true;
878
879 lpfCreateToolhelp32Snapshot = NULL;
880 lpfProcess32First = NULL;
881 lpfProcess32Next = NULL;
882
883 #if wxUSE_DYNLIB_CLASS
884
885 wxDynamicLibrary dllKernel(wxT("kernel32.dll"), wxDL_VERBATIM);
886
887 // Get procedure addresses.
888 // We are linking to these functions of Kernel32
889 // explicitly, because otherwise a module using
890 // this code would fail to load under Windows NT,
891 // which does not have the Toolhelp32
892 // functions in the Kernel 32.
893 lpfCreateToolhelp32Snapshot =
894 (CreateToolhelp32Snapshot_t)dllKernel.RawGetSymbol(wxT("CreateToolhelp32Snapshot"));
895
896 lpfProcess32First =
897 (Process32_t)dllKernel.RawGetSymbol(wxT("Process32First"));
898
899 lpfProcess32Next =
900 (Process32_t)dllKernel.RawGetSymbol(wxT("Process32Next"));
901
902 #endif // wxUSE_DYNLIB_CLASS
903 }
904
905 // By John Skiff
906 int wxKillAllChildren(long pid, wxSignal sig, wxKillError *krc)
907 {
908 InitToolHelp32();
909
910 if (krc)
911 *krc = wxKILL_OK;
912
913 // If not implemented for this platform (e.g. NT 4.0), silently ignore
914 if (!lpfCreateToolhelp32Snapshot || !lpfProcess32First || !lpfProcess32Next)
915 return 0;
916
917 // Take a snapshot of all processes in the system.
918 HANDLE hProcessSnap = lpfCreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
919 if (hProcessSnap == INVALID_HANDLE_VALUE) {
920 if (krc)
921 *krc = wxKILL_ERROR;
922 return -1;
923 }
924
925 //Fill in the size of the structure before using it.
926 PROCESSENTRY32 pe;
927 wxZeroMemory(pe);
928 pe.dwSize = sizeof(PROCESSENTRY32);
929
930 // Walk the snapshot of the processes, and for each process,
931 // kill it if its parent is pid.
932 if (!lpfProcess32First(hProcessSnap, &pe)) {
933 // Can't get first process.
934 if (krc)
935 *krc = wxKILL_ERROR;
936 CloseHandle (hProcessSnap);
937 return -1;
938 }
939
940 do {
941 if (pe.th32ParentProcessID == (DWORD) pid) {
942 if (wxKill(pe.th32ProcessID, sig, krc))
943 return -1;
944 }
945 } while (lpfProcess32Next (hProcessSnap, &pe));
946
947
948 return 0;
949 }
950
951 // Execute a program in an Interactive Shell
952 bool wxShell(const wxString& command)
953 {
954 wxString cmd;
955
956 #ifdef __WXWINCE__
957 cmd = command;
958 #else
959 wxChar *shell = wxGetenv(wxT("COMSPEC"));
960 if ( !shell )
961 shell = (wxChar*) wxT("\\COMMAND.COM");
962
963 if ( !command )
964 {
965 // just the shell
966 cmd = shell;
967 }
968 else
969 {
970 // pass the command to execute to the command processor
971 cmd.Printf(wxT("%s /c %s"), shell, command.c_str());
972 }
973 #endif
974
975 return wxExecute(cmd, wxEXEC_SYNC) == 0;
976 }
977
978 // Shutdown or reboot the PC
979 bool wxShutdown(int WXUNUSED_IN_WINCE(flags))
980 {
981 #ifdef __WXWINCE__
982 // TODO-CE
983 return false;
984 #elif defined(__WIN32__)
985 bool bOK = true;
986
987 if ( wxGetOsVersion(NULL, NULL) == wxOS_WINDOWS_NT ) // if is NT or 2K
988 {
989 // Get a token for this process.
990 HANDLE hToken;
991 bOK = ::OpenProcessToken(GetCurrentProcess(),
992 TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY,
993 &hToken) != 0;
994 if ( bOK )
995 {
996 TOKEN_PRIVILEGES tkp;
997
998 // Get the LUID for the shutdown privilege.
999 bOK = ::LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,
1000 &tkp.Privileges[0].Luid) != 0;
1001
1002 if ( bOK )
1003 {
1004 tkp.PrivilegeCount = 1; // one privilege to set
1005 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
1006
1007 // Get the shutdown privilege for this process.
1008 ::AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,
1009 (PTOKEN_PRIVILEGES)NULL, 0);
1010
1011 // Cannot test the return value of AdjustTokenPrivileges.
1012 bOK = ::GetLastError() == ERROR_SUCCESS;
1013 }
1014
1015 ::CloseHandle(hToken);
1016 }
1017 }
1018
1019 if ( bOK )
1020 {
1021 UINT wFlags = 0;
1022 if ( flags & wxSHUTDOWN_FORCE )
1023 {
1024 wFlags = EWX_FORCE;
1025 flags &= ~wxSHUTDOWN_FORCE;
1026 }
1027
1028 switch ( flags )
1029 {
1030 case wxSHUTDOWN_POWEROFF:
1031 wFlags |= EWX_POWEROFF;
1032 break;
1033
1034 case wxSHUTDOWN_REBOOT:
1035 wFlags |= EWX_REBOOT;
1036 break;
1037
1038 case wxSHUTDOWN_LOGOFF:
1039 wFlags |= EWX_LOGOFF;
1040 break;
1041
1042 default:
1043 wxFAIL_MSG( wxT("unknown wxShutdown() flag") );
1044 return false;
1045 }
1046
1047 bOK = ::ExitWindowsEx(wFlags, 0) != 0;
1048 }
1049
1050 return bOK;
1051 #endif // WinCE/!WinCE
1052 }
1053
1054 // ----------------------------------------------------------------------------
1055 // misc
1056 // ----------------------------------------------------------------------------
1057
1058 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
1059 wxMemorySize wxGetFreeMemory()
1060 {
1061 #if defined(__WIN64__)
1062 MEMORYSTATUSEX memStatex;
1063 memStatex.dwLength = sizeof (memStatex);
1064 ::GlobalMemoryStatusEx (&memStatex);
1065 return (wxMemorySize)memStatex.ullAvailPhys;
1066 #else /* if defined(__WIN32__) */
1067 MEMORYSTATUS memStatus;
1068 memStatus.dwLength = sizeof(MEMORYSTATUS);
1069 ::GlobalMemoryStatus(&memStatus);
1070 return (wxMemorySize)memStatus.dwAvailPhys;
1071 #endif
1072 }
1073
1074 unsigned long wxGetProcessId()
1075 {
1076 return ::GetCurrentProcessId();
1077 }
1078
1079 // Emit a beeeeeep
1080 void wxBell()
1081 {
1082 ::MessageBeep((UINT)-1); // default sound
1083 }
1084
1085 bool wxIsDebuggerRunning()
1086 {
1087 #if wxUSE_DYNLIB_CLASS
1088 // IsDebuggerPresent() is not available under Win95, so load it dynamically
1089 wxDynamicLibrary dll(wxT("kernel32.dll"), wxDL_VERBATIM);
1090
1091 typedef BOOL (WINAPI *IsDebuggerPresent_t)();
1092 if ( !dll.HasSymbol(wxT("IsDebuggerPresent")) )
1093 {
1094 // no way to know, assume no
1095 return false;
1096 }
1097
1098 return (*(IsDebuggerPresent_t)dll.GetSymbol(wxT("IsDebuggerPresent")))() != 0;
1099 #else
1100 return false;
1101 #endif
1102 }
1103
1104 // ----------------------------------------------------------------------------
1105 // working with MSW resources
1106 // ----------------------------------------------------------------------------
1107
1108 bool
1109 wxLoadUserResource(const void **outData,
1110 size_t *outLen,
1111 const wxString& resourceName,
1112 const wxString& resourceType,
1113 WXHINSTANCE instance)
1114 {
1115 wxCHECK_MSG( outData && outLen, false, "output pointers can't be NULL" );
1116
1117 HRSRC hResource = ::FindResource(instance,
1118 resourceName.t_str(),
1119 resourceType.t_str());
1120 if ( !hResource )
1121 return false;
1122
1123 HGLOBAL hData = ::LoadResource(instance, hResource);
1124 if ( !hData )
1125 {
1126 wxLogSysError(_("Failed to load resource \"%s\"."), resourceName);
1127 return false;
1128 }
1129
1130 *outData = ::LockResource(hData);
1131 if ( !*outData )
1132 {
1133 wxLogSysError(_("Failed to lock resource \"%s\"."), resourceName);
1134 return false;
1135 }
1136
1137 *outLen = ::SizeofResource(instance, hResource);
1138
1139 // Notice that we do not need to call neither UnlockResource() (which is
1140 // obsolete in Win32) nor GlobalFree() (resources are freed on process
1141 // termination only)
1142
1143 return true;
1144 }
1145
1146 char *
1147 wxLoadUserResource(const wxString& resourceName,
1148 const wxString& resourceType,
1149 int* pLen,
1150 WXHINSTANCE instance)
1151 {
1152 const void *data;
1153 size_t len;
1154 if ( !wxLoadUserResource(&data, &len, resourceName, resourceType, instance) )
1155 return NULL;
1156
1157 char *s = new char[len + 1];
1158 memcpy(s, data, len);
1159 s[len] = '\0'; // NUL-terminate in case the resource itself wasn't
1160
1161 if (pLen)
1162 *pLen = len;
1163
1164 return s;
1165 }
1166
1167 // ----------------------------------------------------------------------------
1168 // OS version
1169 // ----------------------------------------------------------------------------
1170
1171 // check if we're running under a server or workstation Windows system: it
1172 // returns true or false with obvious meaning as well as -1 if the system type
1173 // couldn't be determined
1174 //
1175 // this function is currently private but we may want to expose it later if
1176 // it's really useful
1177 namespace
1178 {
1179
1180 int wxIsWindowsServer()
1181 {
1182 #ifdef VER_NT_WORKSTATION
1183 OSVERSIONINFOEX info;
1184 wxZeroMemory(info);
1185
1186 info.dwOSVersionInfoSize = sizeof(info);
1187 if ( ::GetVersionEx(reinterpret_cast<OSVERSIONINFO *>(&info)) )
1188 {
1189 switch ( info.wProductType )
1190 {
1191 case VER_NT_WORKSTATION:
1192 return false;
1193
1194 case VER_NT_SERVER:
1195 case VER_NT_DOMAIN_CONTROLLER:
1196 return true;
1197 }
1198 }
1199 #endif // VER_NT_WORKSTATION
1200
1201 return -1;
1202 }
1203
1204 } // anonymous namespace
1205
1206 wxString wxGetOsDescription()
1207 {
1208 wxString str;
1209
1210 OSVERSIONINFO info;
1211 wxZeroMemory(info);
1212
1213 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1214 if ( ::GetVersionEx(&info) )
1215 {
1216 switch ( info.dwPlatformId )
1217 {
1218 #ifdef VER_PLATFORM_WIN32_CE
1219 case VER_PLATFORM_WIN32_CE:
1220 str.Printf(_("Windows CE (%d.%d)"),
1221 info.dwMajorVersion,
1222 info.dwMinorVersion);
1223 break;
1224 #endif
1225 case VER_PLATFORM_WIN32s:
1226 str = _("Win32s on Windows 3.1");
1227 break;
1228
1229 case VER_PLATFORM_WIN32_WINDOWS:
1230 switch (info.dwMinorVersion)
1231 {
1232 case 0:
1233 if ( info.szCSDVersion[1] == 'B' ||
1234 info.szCSDVersion[1] == 'C' )
1235 {
1236 str = _("Windows 95 OSR2");
1237 }
1238 else
1239 {
1240 str = _("Windows 95");
1241 }
1242 break;
1243 case 10:
1244 if ( info.szCSDVersion[1] == 'B' ||
1245 info.szCSDVersion[1] == 'C' )
1246 {
1247 str = _("Windows 98 SE");
1248 }
1249 else
1250 {
1251 str = _("Windows 98");
1252 }
1253 break;
1254 case 90:
1255 str = _("Windows ME");
1256 break;
1257 default:
1258 str.Printf(_("Windows 9x (%d.%d)"),
1259 info.dwMajorVersion,
1260 info.dwMinorVersion);
1261 break;
1262 }
1263 if ( !wxIsEmpty(info.szCSDVersion) )
1264 {
1265 str << wxT(" (") << info.szCSDVersion << wxT(')');
1266 }
1267 break;
1268
1269 case VER_PLATFORM_WIN32_NT:
1270 switch ( info.dwMajorVersion )
1271 {
1272 case 5:
1273 switch ( info.dwMinorVersion )
1274 {
1275 case 0:
1276 str = _("Windows 2000");
1277 break;
1278
1279 case 2:
1280 // we can't distinguish between XP 64 and 2003
1281 // as they both are 5.2, so examine the product
1282 // type to resolve this ambiguity
1283 if ( wxIsWindowsServer() == 1 )
1284 {
1285 str = _("Windows Server 2003");
1286 break;
1287 }
1288 //else: must be XP, fall through
1289
1290 case 1:
1291 str = _("Windows XP");
1292 break;
1293 }
1294 break;
1295
1296 case 6:
1297 switch ( info.dwMinorVersion )
1298 {
1299 case 0:
1300 str = wxIsWindowsServer() == 1
1301 ? _("Windows Server 2008")
1302 : _("Windows Vista");
1303 break;
1304
1305 case 1:
1306 str = wxIsWindowsServer() == 1
1307 ? _("Windows Server 2008 R2")
1308 : _("Windows 7");
1309 break;
1310 }
1311 break;
1312 }
1313
1314 if ( str.empty() )
1315 {
1316 str.Printf(_("Windows NT %lu.%lu"),
1317 info.dwMajorVersion,
1318 info.dwMinorVersion);
1319 }
1320
1321 str << wxT(" (")
1322 << wxString::Format(_("build %lu"), info.dwBuildNumber);
1323 if ( !wxIsEmpty(info.szCSDVersion) )
1324 {
1325 str << wxT(", ") << info.szCSDVersion;
1326 }
1327 str << wxT(')');
1328
1329 if ( wxIsPlatform64Bit() )
1330 str << _(", 64-bit edition");
1331 break;
1332 }
1333 }
1334 else
1335 {
1336 wxFAIL_MSG( wxT("GetVersionEx() failed") ); // should never happen
1337 }
1338
1339 return str;
1340 }
1341
1342 bool wxIsPlatform64Bit()
1343 {
1344 #if defined(_WIN64)
1345 return true; // 64-bit programs run only on Win64
1346 #elif wxUSE_DYNLIB_CLASS // Win32
1347 // 32-bit programs run on both 32-bit and 64-bit Windows so check
1348 typedef BOOL (WINAPI *IsWow64Process_t)(HANDLE, BOOL *);
1349
1350 wxDynamicLibrary dllKernel32(wxT("kernel32.dll"));
1351 IsWow64Process_t pfnIsWow64Process =
1352 (IsWow64Process_t)dllKernel32.RawGetSymbol(wxT("IsWow64Process"));
1353
1354 BOOL wow64 = FALSE;
1355 if ( pfnIsWow64Process )
1356 {
1357 pfnIsWow64Process(::GetCurrentProcess(), &wow64);
1358 }
1359 //else: running under a system without Win64 support
1360
1361 return wow64 != FALSE;
1362 #else
1363 return false;
1364 #endif // Win64/Win32
1365 }
1366
1367 wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin)
1368 {
1369 static struct
1370 {
1371 // this may be false, true or -1 if we tried to initialize but failed
1372 int initialized;
1373
1374 wxOperatingSystemId os;
1375
1376 int verMaj,
1377 verMin;
1378 } s_version;
1379
1380 // query the OS info only once as it's not supposed to change
1381 if ( !s_version.initialized )
1382 {
1383 OSVERSIONINFO info;
1384 wxZeroMemory(info);
1385 info.dwOSVersionInfoSize = sizeof(info);
1386 if ( ::GetVersionEx(&info) )
1387 {
1388 s_version.initialized = true;
1389
1390 #if defined(__WXWINCE__)
1391 s_version.os = wxOS_WINDOWS_CE;
1392 #elif defined(__WXMICROWIN__)
1393 s_version.os = wxOS_WINDOWS_MICRO;
1394 #else // "normal" desktop Windows system, use run-time detection
1395 switch ( info.dwPlatformId )
1396 {
1397 case VER_PLATFORM_WIN32_NT:
1398 s_version.os = wxOS_WINDOWS_NT;
1399 break;
1400
1401 case VER_PLATFORM_WIN32_WINDOWS:
1402 s_version.os = wxOS_WINDOWS_9X;
1403 break;
1404 }
1405 #endif // Windows versions
1406
1407 s_version.verMaj = info.dwMajorVersion;
1408 s_version.verMin = info.dwMinorVersion;
1409 }
1410 else // GetVersionEx() failed
1411 {
1412 s_version.initialized = -1;
1413 }
1414 }
1415
1416 if ( s_version.initialized == 1 )
1417 {
1418 if ( verMaj )
1419 *verMaj = s_version.verMaj;
1420 if ( verMin )
1421 *verMin = s_version.verMin;
1422 }
1423
1424 // this works even if we were not initialized successfully as the initial
1425 // values of this field is 0 which is wxOS_UNKNOWN and exactly what we need
1426 return s_version.os;
1427 }
1428
1429 wxWinVersion wxGetWinVersion()
1430 {
1431 int verMaj,
1432 verMin;
1433 switch ( wxGetOsVersion(&verMaj, &verMin) )
1434 {
1435 case wxOS_WINDOWS_9X:
1436 if ( verMaj == 4 )
1437 {
1438 switch ( verMin )
1439 {
1440 case 0:
1441 return wxWinVersion_95;
1442
1443 case 10:
1444 return wxWinVersion_98;
1445
1446 case 90:
1447 return wxWinVersion_ME;
1448 }
1449 }
1450 break;
1451
1452 case wxOS_WINDOWS_NT:
1453 switch ( verMaj )
1454 {
1455 case 3:
1456 return wxWinVersion_NT3;
1457
1458 case 4:
1459 return wxWinVersion_NT4;
1460
1461 case 5:
1462 switch ( verMin )
1463 {
1464 case 0:
1465 return wxWinVersion_2000;
1466
1467 case 1:
1468 return wxWinVersion_XP;
1469
1470 case 2:
1471 return wxWinVersion_2003;
1472 }
1473 break;
1474
1475 case 6:
1476 return wxWinVersion_NT6;
1477 }
1478 break;
1479
1480 default:
1481 // Do nothing just to silence GCC warning
1482 break;
1483 }
1484
1485 return wxWinVersion_Unknown;
1486 }
1487
1488 // ----------------------------------------------------------------------------
1489 // sleep functions
1490 // ----------------------------------------------------------------------------
1491
1492 void wxMilliSleep(unsigned long milliseconds)
1493 {
1494 ::Sleep(milliseconds);
1495 }
1496
1497 void wxMicroSleep(unsigned long microseconds)
1498 {
1499 wxMilliSleep(microseconds/1000);
1500 }
1501
1502 void wxSleep(int nSecs)
1503 {
1504 wxMilliSleep(1000*nSecs);
1505 }
1506
1507 // ----------------------------------------------------------------------------
1508 // font encoding <-> Win32 codepage conversion functions
1509 // ----------------------------------------------------------------------------
1510
1511 extern WXDLLIMPEXP_BASE long wxEncodingToCharset(wxFontEncoding encoding)
1512 {
1513 switch ( encoding )
1514 {
1515 // although this function is supposed to return an exact match, do do
1516 // some mappings here for the most common case of "standard" encoding
1517 case wxFONTENCODING_SYSTEM:
1518 return DEFAULT_CHARSET;
1519
1520 case wxFONTENCODING_ISO8859_1:
1521 case wxFONTENCODING_ISO8859_15:
1522 case wxFONTENCODING_CP1252:
1523 return ANSI_CHARSET;
1524
1525 #if !defined(__WXMICROWIN__)
1526 // The following four fonts are multi-byte charsets
1527 case wxFONTENCODING_CP932:
1528 return SHIFTJIS_CHARSET;
1529
1530 case wxFONTENCODING_CP936:
1531 return GB2312_CHARSET;
1532
1533 #ifndef __WXWINCE__
1534 case wxFONTENCODING_CP949:
1535 return HANGUL_CHARSET;
1536 #endif
1537
1538 case wxFONTENCODING_CP950:
1539 return CHINESEBIG5_CHARSET;
1540
1541 // The rest are single byte encodings
1542 case wxFONTENCODING_CP1250:
1543 return EASTEUROPE_CHARSET;
1544
1545 case wxFONTENCODING_CP1251:
1546 return RUSSIAN_CHARSET;
1547
1548 case wxFONTENCODING_CP1253:
1549 return GREEK_CHARSET;
1550
1551 case wxFONTENCODING_CP1254:
1552 return TURKISH_CHARSET;
1553
1554 case wxFONTENCODING_CP1255:
1555 return HEBREW_CHARSET;
1556
1557 case wxFONTENCODING_CP1256:
1558 return ARABIC_CHARSET;
1559
1560 case wxFONTENCODING_CP1257:
1561 return BALTIC_CHARSET;
1562
1563 case wxFONTENCODING_CP874:
1564 return THAI_CHARSET;
1565 #endif // !__WXMICROWIN__
1566
1567 case wxFONTENCODING_CP437:
1568 return OEM_CHARSET;
1569
1570 default:
1571 // no way to translate this encoding into a Windows charset
1572 return -1;
1573 }
1574 }
1575
1576 // we have 2 versions of wxCharsetToCodepage(): the old one which directly
1577 // looks up the vlaues in the registry and the new one which is more
1578 // politically correct and has more chances to work on other Windows versions
1579 // as well but the old version is still needed for !wxUSE_FONTMAP case
1580 #if wxUSE_FONTMAP
1581
1582 #include "wx/fontmap.h"
1583
1584 extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding)
1585 {
1586 // There don't seem to be symbolic names for
1587 // these under Windows so I just copied the
1588 // values from MSDN.
1589
1590 unsigned int ret;
1591
1592 switch (encoding)
1593 {
1594 case wxFONTENCODING_ISO8859_1: ret = 28591; break;
1595 case wxFONTENCODING_ISO8859_2: ret = 28592; break;
1596 case wxFONTENCODING_ISO8859_3: ret = 28593; break;
1597 case wxFONTENCODING_ISO8859_4: ret = 28594; break;
1598 case wxFONTENCODING_ISO8859_5: ret = 28595; break;
1599 case wxFONTENCODING_ISO8859_6: ret = 28596; break;
1600 case wxFONTENCODING_ISO8859_7: ret = 28597; break;
1601 case wxFONTENCODING_ISO8859_8: ret = 28598; break;
1602 case wxFONTENCODING_ISO8859_9: ret = 28599; break;
1603 case wxFONTENCODING_ISO8859_10: ret = 28600; break;
1604 case wxFONTENCODING_ISO8859_11: ret = 874; break;
1605 // case wxFONTENCODING_ISO8859_12, // doesn't exist currently, but put it
1606 case wxFONTENCODING_ISO8859_13: ret = 28603; break;
1607 // case wxFONTENCODING_ISO8859_14: ret = 28604; break; // no correspondence on Windows
1608 case wxFONTENCODING_ISO8859_15: ret = 28605; break;
1609
1610 case wxFONTENCODING_KOI8: ret = 20866; break;
1611 case wxFONTENCODING_KOI8_U: ret = 21866; break;
1612
1613 case wxFONTENCODING_CP437: ret = 437; break;
1614 case wxFONTENCODING_CP850: ret = 850; break;
1615 case wxFONTENCODING_CP852: ret = 852; break;
1616 case wxFONTENCODING_CP855: ret = 855; break;
1617 case wxFONTENCODING_CP866: ret = 866; break;
1618 case wxFONTENCODING_CP874: ret = 874; break;
1619 case wxFONTENCODING_CP932: ret = 932; break;
1620 case wxFONTENCODING_CP936: ret = 936; break;
1621 case wxFONTENCODING_CP949: ret = 949; break;
1622 case wxFONTENCODING_CP950: ret = 950; break;
1623 case wxFONTENCODING_CP1250: ret = 1250; break;
1624 case wxFONTENCODING_CP1251: ret = 1251; break;
1625 case wxFONTENCODING_CP1252: ret = 1252; break;
1626 case wxFONTENCODING_CP1253: ret = 1253; break;
1627 case wxFONTENCODING_CP1254: ret = 1254; break;
1628 case wxFONTENCODING_CP1255: ret = 1255; break;
1629 case wxFONTENCODING_CP1256: ret = 1256; break;
1630 case wxFONTENCODING_CP1257: ret = 1257; break;
1631
1632 case wxFONTENCODING_EUC_JP: ret = 20932; break;
1633
1634 case wxFONTENCODING_MACROMAN: ret = 10000; break;
1635 case wxFONTENCODING_MACJAPANESE: ret = 10001; break;
1636 case wxFONTENCODING_MACCHINESETRAD: ret = 10002; break;
1637 case wxFONTENCODING_MACKOREAN: ret = 10003; break;
1638 case wxFONTENCODING_MACARABIC: ret = 10004; break;
1639 case wxFONTENCODING_MACHEBREW: ret = 10005; break;
1640 case wxFONTENCODING_MACGREEK: ret = 10006; break;
1641 case wxFONTENCODING_MACCYRILLIC: ret = 10007; break;
1642 case wxFONTENCODING_MACTHAI: ret = 10021; break;
1643 case wxFONTENCODING_MACCHINESESIMP: ret = 10008; break;
1644 case wxFONTENCODING_MACCENTRALEUR: ret = 10029; break;
1645 case wxFONTENCODING_MACCROATIAN: ret = 10082; break;
1646 case wxFONTENCODING_MACICELANDIC: ret = 10079; break;
1647 case wxFONTENCODING_MACROMANIAN: ret = 10009; break;
1648
1649 case wxFONTENCODING_ISO2022_JP: ret = 50222; break;
1650
1651 case wxFONTENCODING_UTF7: ret = 65000; break;
1652 case wxFONTENCODING_UTF8: ret = 65001; break;
1653
1654 default: return -1;
1655 }
1656
1657 if (::IsValidCodePage(ret) == 0)
1658 return -1;
1659
1660 CPINFO info;
1661 if (::GetCPInfo(ret, &info) == 0)
1662 return -1;
1663
1664 return (long) ret;
1665 }
1666
1667 extern long wxCharsetToCodepage(const char *name)
1668 {
1669 // first get the font encoding for this charset
1670 if ( !name )
1671 return -1;
1672
1673 wxFontEncoding enc = wxFontMapperBase::Get()->CharsetToEncoding(name, false);
1674 if ( enc == wxFONTENCODING_SYSTEM )
1675 return -1;
1676
1677 // the use the helper function
1678 return wxEncodingToCodepage(enc);
1679 }
1680
1681 #else // !wxUSE_FONTMAP
1682
1683 #include "wx/msw/registry.h"
1684
1685 // this should work if Internet Exploiter is installed
1686 extern long wxCharsetToCodepage(const char *name)
1687 {
1688 if (!name)
1689 return GetACP();
1690
1691 long CP = -1;
1692
1693 #if wxUSE_REGKEY
1694 wxString path(wxT("MIME\\Database\\Charset\\"));
1695 wxString cn(name);
1696
1697 // follow the alias loop
1698 for ( ;; )
1699 {
1700 wxRegKey key(wxRegKey::HKCR, path + cn);
1701
1702 if (!key.Exists())
1703 break;
1704
1705 // two cases: either there's an AliasForCharset string,
1706 // or there are Codepage and InternetEncoding dwords.
1707 // The InternetEncoding gives us the actual encoding,
1708 // the Codepage just says which Windows character set to
1709 // use when displaying the data.
1710 if (key.HasValue(wxT("InternetEncoding")) &&
1711 key.QueryValue(wxT("InternetEncoding"), &CP))
1712 break;
1713
1714 // no encoding, see if it's an alias
1715 if (!key.HasValue(wxT("AliasForCharset")) ||
1716 !key.QueryValue(wxT("AliasForCharset"), cn))
1717 break;
1718 }
1719 #endif // wxUSE_REGKEY
1720
1721 return CP;
1722 }
1723
1724 #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
1725
1726 extern "C" WXDLLIMPEXP_BASE HWND
1727 wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc)
1728 {
1729 wxCHECK_MSG( classname && pclassname && wndproc, NULL,
1730 wxT("NULL parameter in wxCreateHiddenWindow") );
1731
1732 // register the class fi we need to first
1733 if ( *pclassname == NULL )
1734 {
1735 WNDCLASS wndclass;
1736 wxZeroMemory(wndclass);
1737
1738 wndclass.lpfnWndProc = wndproc;
1739 wndclass.hInstance = wxGetInstance();
1740 wndclass.lpszClassName = classname;
1741
1742 if ( !::RegisterClass(&wndclass) )
1743 {
1744 wxLogLastError(wxT("RegisterClass() in wxCreateHiddenWindow"));
1745
1746 return NULL;
1747 }
1748
1749 *pclassname = classname;
1750 }
1751
1752 // next create the window
1753 HWND hwnd = ::CreateWindow
1754 (
1755 *pclassname,
1756 NULL,
1757 0, 0, 0, 0,
1758 0,
1759 (HWND) NULL,
1760 (HMENU)NULL,
1761 wxGetInstance(),
1762 (LPVOID) NULL
1763 );
1764
1765 if ( !hwnd )
1766 {
1767 wxLogLastError(wxT("CreateWindow() in wxCreateHiddenWindow"));
1768 }
1769
1770 return hwnd;
1771 }
wxWidgets (Impactor)