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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.t_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 if ( _tputenv(envstr.t_str()) != 0 )
640 return false;
641 #else // other compiler
642 if ( !::SetEnvironmentVariable(var.t_str(), value) )
643 {
644 wxLogLastError(wxT("SetEnvironmentVariable"));
645
646 return false;
647 }
648 #endif // compiler
649
650 return true;
651 #endif // __WXWINCE__/!__WXWINCE__
652 }
653
654 bool wxSetEnv(const wxString& variable, const wxString& value)
655 {
656 return wxDoSetEnv(variable, value.t_str());
657 }
658
659 bool wxUnsetEnv(const wxString& variable)
660 {
661 return wxDoSetEnv(variable, NULL);
662 }
663
664 // ----------------------------------------------------------------------------
665 // process management
666 // ----------------------------------------------------------------------------
667
668 // structure used to pass parameters from wxKill() to wxEnumFindByPidProc()
669 struct wxFindByPidParams
670 {
671 wxFindByPidParams() { hwnd = 0; pid = 0; }
672
673 // the HWND used to return the result
674 HWND hwnd;
675
676 // the PID we're looking from
677 DWORD pid;
678
679 wxDECLARE_NO_COPY_CLASS(wxFindByPidParams);
680 };
681
682 // wxKill helper: EnumWindows() callback which is used to find the first (top
683 // level) window belonging to the given process
684 BOOL CALLBACK wxEnumFindByPidProc(HWND hwnd, LPARAM lParam)
685 {
686 DWORD pid;
687 (void)::GetWindowThreadProcessId(hwnd, &pid);
688
689 wxFindByPidParams *params = (wxFindByPidParams *)lParam;
690 if ( pid == params->pid )
691 {
692 // remember the window we found
693 params->hwnd = hwnd;
694
695 // return FALSE to stop the enumeration
696 return FALSE;
697 }
698
699 // continue enumeration
700 return TRUE;
701 }
702
703 int wxKillAllChildren(long pid, wxSignal sig, wxKillError *krc);
704
705 int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
706 {
707 if (flags & wxKILL_CHILDREN)
708 wxKillAllChildren(pid, sig, krc);
709
710 // get the process handle to operate on
711 DWORD dwAccess = PROCESS_QUERY_INFORMATION | SYNCHRONIZE;
712 if ( sig == wxSIGKILL )
713 dwAccess |= PROCESS_TERMINATE;
714
715 HANDLE hProcess = ::OpenProcess(dwAccess, FALSE, (DWORD)pid);
716 if ( hProcess == NULL )
717 {
718 if ( krc )
719 {
720 // recognize wxKILL_ACCESS_DENIED as special because this doesn't
721 // mean that the process doesn't exist and this is important for
722 // wxProcess::Exists()
723 *krc = ::GetLastError() == ERROR_ACCESS_DENIED
724 ? wxKILL_ACCESS_DENIED
725 : wxKILL_NO_PROCESS;
726 }
727
728 return -1;
729 }
730
731 wxON_BLOCK_EXIT1(::CloseHandle, hProcess);
732
733 // Default timeout for waiting for the process termination after killing
734 // it. It should be long enough to allow the process to terminate even on a
735 // busy system but short enough to avoid blocking the main thread for too
736 // long.
737 DWORD waitTimeout = 500; // ms
738
739 bool ok = true;
740 switch ( sig )
741 {
742 case wxSIGKILL:
743 // kill the process forcefully returning -1 as error code
744 if ( !::TerminateProcess(hProcess, (UINT)-1) )
745 {
746 wxLogSysError(_("Failed to kill process %d"), pid);
747
748 if ( krc )
749 {
750 // this is not supposed to happen if we could open the
751 // process
752 *krc = wxKILL_ERROR;
753 }
754
755 ok = false;
756 }
757 break;
758
759 case wxSIGNONE:
760 // Opening the process handle may succeed for a process even if it
761 // doesn't run any more (typically because open handles to it still
762 // exist elsewhere, possibly in this process itself if we're
763 // killing a child process) so we still need check if it hasn't
764 // terminated yet but, unlike when killing it, we don't need to
765 // wait for any time at all.
766 waitTimeout = 0;
767 break;
768
769 default:
770 // any other signal means "terminate"
771 {
772 wxFindByPidParams params;
773 params.pid = (DWORD)pid;
774
775 // EnumWindows() has nice semantics: it returns 0 if it found
776 // something or if an error occurred and non zero if it
777 // enumerated all the window
778 if ( !::EnumWindows(wxEnumFindByPidProc, (LPARAM)&params) )
779 {
780 // did we find any window?
781 if ( params.hwnd )
782 {
783 // tell the app to close
784 //
785 // NB: this is the harshest way, the app won't have an
786 // opportunity to save any files, for example, but
787 // this is probably what we want here. If not we
788 // can also use SendMesageTimeout(WM_CLOSE)
789 if ( !::PostMessage(params.hwnd, WM_QUIT, 0, 0) )
790 {
791 wxLogLastError(wxT("PostMessage(WM_QUIT)"));
792 }
793 }
794 else // it was an error then
795 {
796 wxLogLastError(wxT("EnumWindows"));
797
798 ok = false;
799 }
800 }
801 else // no windows for this PID
802 {
803 if ( krc )
804 *krc = wxKILL_ERROR;
805
806 ok = false;
807 }
808 }
809 }
810
811 // the return code
812 if ( ok )
813 {
814 // as we wait for a short time, we can use just WaitForSingleObject()
815 // and not MsgWaitForMultipleObjects()
816 switch ( ::WaitForSingleObject(hProcess, waitTimeout) )
817 {
818 case WAIT_OBJECT_0:
819 // Process terminated: normally this indicates that we
820 // successfully killed it but when testing for the process
821 // existence, this means failure.
822 if ( sig == wxSIGNONE )
823 {
824 if ( krc )
825 *krc = wxKILL_NO_PROCESS;
826
827 ok = false;
828 }
829 break;
830
831 default:
832 wxFAIL_MSG( wxT("unexpected WaitForSingleObject() return") );
833 // fall through
834
835 case WAIT_FAILED:
836 wxLogLastError(wxT("WaitForSingleObject"));
837 // fall through
838
839 case WAIT_TIMEOUT:
840 // Process didn't terminate: normally this is a failure but not
841 // when we're just testing for its existence.
842 if ( sig != wxSIGNONE )
843 {
844 if ( krc )
845 *krc = wxKILL_ERROR;
846
847 ok = false;
848 }
849 break;
850 }
851 }
852
853
854 // the return code is the same as from Unix kill(): 0 if killed
855 // successfully or -1 on error
856 if ( !ok )
857 return -1;
858
859 if ( krc )
860 *krc = wxKILL_OK;
861
862 return 0;
863 }
864
865 typedef HANDLE (WINAPI *CreateToolhelp32Snapshot_t)(DWORD,DWORD);
866 typedef BOOL (WINAPI *Process32_t)(HANDLE,LPPROCESSENTRY32);
867
868 CreateToolhelp32Snapshot_t lpfCreateToolhelp32Snapshot;
869 Process32_t lpfProcess32First, lpfProcess32Next;
870
871 static void InitToolHelp32()
872 {
873 static bool s_initToolHelpDone = false;
874
875 if (s_initToolHelpDone)
876 return;
877
878 s_initToolHelpDone = true;
879
880 lpfCreateToolhelp32Snapshot = NULL;
881 lpfProcess32First = NULL;
882 lpfProcess32Next = NULL;
883
884 #if wxUSE_DYNLIB_CLASS
885
886 wxDynamicLibrary dllKernel(wxT("kernel32.dll"), wxDL_VERBATIM);
887
888 // Get procedure addresses.
889 // We are linking to these functions of Kernel32
890 // explicitly, because otherwise a module using
891 // this code would fail to load under Windows NT,
892 // which does not have the Toolhelp32
893 // functions in the Kernel 32.
894 lpfCreateToolhelp32Snapshot =
895 (CreateToolhelp32Snapshot_t)dllKernel.RawGetSymbol(wxT("CreateToolhelp32Snapshot"));
896
897 lpfProcess32First =
898 (Process32_t)dllKernel.RawGetSymbol(wxT("Process32First"));
899
900 lpfProcess32Next =
901 (Process32_t)dllKernel.RawGetSymbol(wxT("Process32Next"));
902
903 #endif // wxUSE_DYNLIB_CLASS
904 }
905
906 // By John Skiff
907 int wxKillAllChildren(long pid, wxSignal sig, wxKillError *krc)
908 {
909 InitToolHelp32();
910
911 if (krc)
912 *krc = wxKILL_OK;
913
914 // If not implemented for this platform (e.g. NT 4.0), silently ignore
915 if (!lpfCreateToolhelp32Snapshot || !lpfProcess32First || !lpfProcess32Next)
916 return 0;
917
918 // Take a snapshot of all processes in the system.
919 HANDLE hProcessSnap = lpfCreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
920 if (hProcessSnap == INVALID_HANDLE_VALUE) {
921 if (krc)
922 *krc = wxKILL_ERROR;
923 return -1;
924 }
925
926 //Fill in the size of the structure before using it.
927 PROCESSENTRY32 pe;
928 wxZeroMemory(pe);
929 pe.dwSize = sizeof(PROCESSENTRY32);
930
931 // Walk the snapshot of the processes, and for each process,
932 // kill it if its parent is pid.
933 if (!lpfProcess32First(hProcessSnap, &pe)) {
934 // Can't get first process.
935 if (krc)
936 *krc = wxKILL_ERROR;
937 CloseHandle (hProcessSnap);
938 return -1;
939 }
940
941 do {
942 if (pe.th32ParentProcessID == (DWORD) pid) {
943 if (wxKill(pe.th32ProcessID, sig, krc))
944 return -1;
945 }
946 } while (lpfProcess32Next (hProcessSnap, &pe));
947
948
949 return 0;
950 }
951
952 // Execute a program in an Interactive Shell
953 bool wxShell(const wxString& command)
954 {
955 wxString cmd;
956
957 #ifdef __WXWINCE__
958 cmd = command;
959 #else
960 wxChar *shell = wxGetenv(wxT("COMSPEC"));
961 if ( !shell )
962 shell = (wxChar*) wxT("\\COMMAND.COM");
963
964 if ( !command )
965 {
966 // just the shell
967 cmd = shell;
968 }
969 else
970 {
971 // pass the command to execute to the command processor
972 cmd.Printf(wxT("%s /c %s"), shell, command.c_str());
973 }
974 #endif
975
976 return wxExecute(cmd, wxEXEC_SYNC) == 0;
977 }
978
979 // Shutdown or reboot the PC
980 bool wxShutdown(int WXUNUSED_IN_WINCE(flags))
981 {
982 #ifdef __WXWINCE__
983 // TODO-CE
984 return false;
985 #elif defined(__WIN32__)
986 bool bOK = true;
987
988 if ( wxGetOsVersion(NULL, NULL) == wxOS_WINDOWS_NT ) // if is NT or 2K
989 {
990 // Get a token for this process.
991 HANDLE hToken;
992 bOK = ::OpenProcessToken(GetCurrentProcess(),
993 TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY,
994 &hToken) != 0;
995 if ( bOK )
996 {
997 TOKEN_PRIVILEGES tkp;
998
999 // Get the LUID for the shutdown privilege.
1000 bOK = ::LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,
1001 &tkp.Privileges[0].Luid) != 0;
1002
1003 if ( bOK )
1004 {
1005 tkp.PrivilegeCount = 1; // one privilege to set
1006 tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
1007
1008 // Get the shutdown privilege for this process.
1009 ::AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,
1010 (PTOKEN_PRIVILEGES)NULL, 0);
1011
1012 // Cannot test the return value of AdjustTokenPrivileges.
1013 bOK = ::GetLastError() == ERROR_SUCCESS;
1014 }
1015
1016 ::CloseHandle(hToken);
1017 }
1018 }
1019
1020 if ( bOK )
1021 {
1022 UINT wFlags = 0;
1023 if ( flags & wxSHUTDOWN_FORCE )
1024 {
1025 wFlags = EWX_FORCE;
1026 flags &= ~wxSHUTDOWN_FORCE;
1027 }
1028
1029 switch ( flags )
1030 {
1031 case wxSHUTDOWN_POWEROFF:
1032 wFlags |= EWX_POWEROFF;
1033 break;
1034
1035 case wxSHUTDOWN_REBOOT:
1036 wFlags |= EWX_REBOOT;
1037 break;
1038
1039 case wxSHUTDOWN_LOGOFF:
1040 wFlags |= EWX_LOGOFF;
1041 break;
1042
1043 default:
1044 wxFAIL_MSG( wxT("unknown wxShutdown() flag") );
1045 return false;
1046 }
1047
1048 bOK = ::ExitWindowsEx(wFlags, 0) != 0;
1049 }
1050
1051 return bOK;
1052 #endif // WinCE/!WinCE
1053 }
1054
1055 // ----------------------------------------------------------------------------
1056 // misc
1057 // ----------------------------------------------------------------------------
1058
1059 // Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
1060 wxMemorySize wxGetFreeMemory()
1061 {
1062 #if defined(__WIN64__)
1063 MEMORYSTATUSEX memStatex;
1064 memStatex.dwLength = sizeof (memStatex);
1065 ::GlobalMemoryStatusEx (&memStatex);
1066 return (wxMemorySize)memStatex.ullAvailPhys;
1067 #else /* if defined(__WIN32__) */
1068 MEMORYSTATUS memStatus;
1069 memStatus.dwLength = sizeof(MEMORYSTATUS);
1070 ::GlobalMemoryStatus(&memStatus);
1071 return (wxMemorySize)memStatus.dwAvailPhys;
1072 #endif
1073 }
1074
1075 unsigned long wxGetProcessId()
1076 {
1077 return ::GetCurrentProcessId();
1078 }
1079
1080 bool wxIsDebuggerRunning()
1081 {
1082 #if wxUSE_DYNLIB_CLASS
1083 // IsDebuggerPresent() is not available under Win95, so load it dynamically
1084 wxDynamicLibrary dll(wxT("kernel32.dll"), wxDL_VERBATIM);
1085
1086 typedef BOOL (WINAPI *IsDebuggerPresent_t)();
1087 if ( !dll.HasSymbol(wxT("IsDebuggerPresent")) )
1088 {
1089 // no way to know, assume no
1090 return false;
1091 }
1092
1093 return (*(IsDebuggerPresent_t)dll.GetSymbol(wxT("IsDebuggerPresent")))() != 0;
1094 #else
1095 return false;
1096 #endif
1097 }
1098
1099 // ----------------------------------------------------------------------------
1100 // working with MSW resources
1101 // ----------------------------------------------------------------------------
1102
1103 bool
1104 wxLoadUserResource(const void **outData,
1105 size_t *outLen,
1106 const wxString& resourceName,
1107 const wxChar* resourceType,
1108 WXHINSTANCE instance)
1109 {
1110 wxCHECK_MSG( outData && outLen, false, "output pointers can't be NULL" );
1111
1112 HRSRC hResource = ::FindResource(instance,
1113 resourceName.t_str(),
1114 resourceType);
1115 if ( !hResource )
1116 return false;
1117
1118 HGLOBAL hData = ::LoadResource(instance, hResource);
1119 if ( !hData )
1120 {
1121 wxLogSysError(_("Failed to load resource \"%s\"."), resourceName);
1122 return false;
1123 }
1124
1125 *outData = ::LockResource(hData);
1126 if ( !*outData )
1127 {
1128 wxLogSysError(_("Failed to lock resource \"%s\"."), resourceName);
1129 return false;
1130 }
1131
1132 *outLen = ::SizeofResource(instance, hResource);
1133
1134 // Notice that we do not need to call neither UnlockResource() (which is
1135 // obsolete in Win32) nor GlobalFree() (resources are freed on process
1136 // termination only)
1137
1138 return true;
1139 }
1140
1141 char *
1142 wxLoadUserResource(const wxString& resourceName,
1143 const wxChar* resourceType,
1144 int* pLen,
1145 WXHINSTANCE instance)
1146 {
1147 const void *data;
1148 size_t len;
1149 if ( !wxLoadUserResource(&data, &len, resourceName, resourceType, instance) )
1150 return NULL;
1151
1152 char *s = new char[len + 1];
1153 memcpy(s, data, len);
1154 s[len] = '\0'; // NUL-terminate in case the resource itself wasn't
1155
1156 if (pLen)
1157 *pLen = len;
1158
1159 return s;
1160 }
1161
1162 // ----------------------------------------------------------------------------
1163 // OS version
1164 // ----------------------------------------------------------------------------
1165
1166 // check if we're running under a server or workstation Windows system: it
1167 // returns true or false with obvious meaning as well as -1 if the system type
1168 // couldn't be determined
1169 //
1170 // this function is currently private but we may want to expose it later if
1171 // it's really useful
1172 namespace
1173 {
1174
1175 int wxIsWindowsServer()
1176 {
1177 #ifdef VER_NT_WORKSTATION
1178 OSVERSIONINFOEX info;
1179 wxZeroMemory(info);
1180
1181 info.dwOSVersionInfoSize = sizeof(info);
1182 if ( ::GetVersionEx(reinterpret_cast<OSVERSIONINFO *>(&info)) )
1183 {
1184 switch ( info.wProductType )
1185 {
1186 case VER_NT_WORKSTATION:
1187 return false;
1188
1189 case VER_NT_SERVER:
1190 case VER_NT_DOMAIN_CONTROLLER:
1191 return true;
1192 }
1193 }
1194 #endif // VER_NT_WORKSTATION
1195
1196 return -1;
1197 }
1198
1199 } // anonymous namespace
1200
1201 wxString wxGetOsDescription()
1202 {
1203 wxString str;
1204
1205 OSVERSIONINFO info;
1206 wxZeroMemory(info);
1207
1208 info.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1209 if ( ::GetVersionEx(&info) )
1210 {
1211 switch ( info.dwPlatformId )
1212 {
1213 #ifdef VER_PLATFORM_WIN32_CE
1214 case VER_PLATFORM_WIN32_CE:
1215 str.Printf(_("Windows CE (%d.%d)"),
1216 info.dwMajorVersion,
1217 info.dwMinorVersion);
1218 break;
1219 #endif
1220 case VER_PLATFORM_WIN32s:
1221 str = _("Win32s on Windows 3.1");
1222 break;
1223
1224 case VER_PLATFORM_WIN32_WINDOWS:
1225 switch (info.dwMinorVersion)
1226 {
1227 case 0:
1228 if ( info.szCSDVersion[1] == 'B' ||
1229 info.szCSDVersion[1] == 'C' )
1230 {
1231 str = _("Windows 95 OSR2");
1232 }
1233 else
1234 {
1235 str = _("Windows 95");
1236 }
1237 break;
1238 case 10:
1239 if ( info.szCSDVersion[1] == 'B' ||
1240 info.szCSDVersion[1] == 'C' )
1241 {
1242 str = _("Windows 98 SE");
1243 }
1244 else
1245 {
1246 str = _("Windows 98");
1247 }
1248 break;
1249 case 90:
1250 str = _("Windows ME");
1251 break;
1252 default:
1253 str.Printf(_("Windows 9x (%d.%d)"),
1254 info.dwMajorVersion,
1255 info.dwMinorVersion);
1256 break;
1257 }
1258 if ( !wxIsEmpty(info.szCSDVersion) )
1259 {
1260 str << wxT(" (") << info.szCSDVersion << wxT(')');
1261 }
1262 break;
1263
1264 case VER_PLATFORM_WIN32_NT:
1265 switch ( info.dwMajorVersion )
1266 {
1267 case 5:
1268 switch ( info.dwMinorVersion )
1269 {
1270 case 0:
1271 str = _("Windows 2000");
1272 break;
1273
1274 case 2:
1275 // we can't distinguish between XP 64 and 2003
1276 // as they both are 5.2, so examine the product
1277 // type to resolve this ambiguity
1278 if ( wxIsWindowsServer() == 1 )
1279 {
1280 str = _("Windows Server 2003");
1281 break;
1282 }
1283 //else: must be XP, fall through
1284
1285 case 1:
1286 str = _("Windows XP");
1287 break;
1288 }
1289 break;
1290
1291 case 6:
1292 switch ( info.dwMinorVersion )
1293 {
1294 case 0:
1295 str = wxIsWindowsServer() == 1
1296 ? _("Windows Server 2008")
1297 : _("Windows Vista");
1298 break;
1299
1300 case 1:
1301 str = wxIsWindowsServer() == 1
1302 ? _("Windows Server 2008 R2")
1303 : _("Windows 7");
1304 break;
1305 }
1306 break;
1307 }
1308
1309 if ( str.empty() )
1310 {
1311 str.Printf(_("Windows NT %lu.%lu"),
1312 info.dwMajorVersion,
1313 info.dwMinorVersion);
1314 }
1315
1316 str << wxT(" (")
1317 << wxString::Format(_("build %lu"), info.dwBuildNumber);
1318 if ( !wxIsEmpty(info.szCSDVersion) )
1319 {
1320 str << wxT(", ") << info.szCSDVersion;
1321 }
1322 str << wxT(')');
1323
1324 if ( wxIsPlatform64Bit() )
1325 str << _(", 64-bit edition");
1326 break;
1327 }
1328 }
1329 else
1330 {
1331 wxFAIL_MSG( wxT("GetVersionEx() failed") ); // should never happen
1332 }
1333
1334 return str;
1335 }
1336
1337 bool wxIsPlatform64Bit()
1338 {
1339 #if defined(_WIN64)
1340 return true; // 64-bit programs run only on Win64
1341 #elif wxUSE_DYNLIB_CLASS // Win32
1342 // 32-bit programs run on both 32-bit and 64-bit Windows so check
1343 typedef BOOL (WINAPI *IsWow64Process_t)(HANDLE, BOOL *);
1344
1345 wxDynamicLibrary dllKernel32(wxT("kernel32.dll"));
1346 IsWow64Process_t pfnIsWow64Process =
1347 (IsWow64Process_t)dllKernel32.RawGetSymbol(wxT("IsWow64Process"));
1348
1349 BOOL wow64 = FALSE;
1350 if ( pfnIsWow64Process )
1351 {
1352 pfnIsWow64Process(::GetCurrentProcess(), &wow64);
1353 }
1354 //else: running under a system without Win64 support
1355
1356 return wow64 != FALSE;
1357 #else
1358 return false;
1359 #endif // Win64/Win32
1360 }
1361
1362 wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin)
1363 {
1364 static struct
1365 {
1366 // this may be false, true or -1 if we tried to initialize but failed
1367 int initialized;
1368
1369 wxOperatingSystemId os;
1370
1371 int verMaj,
1372 verMin;
1373 } s_version;
1374
1375 // query the OS info only once as it's not supposed to change
1376 if ( !s_version.initialized )
1377 {
1378 OSVERSIONINFO info;
1379 wxZeroMemory(info);
1380 info.dwOSVersionInfoSize = sizeof(info);
1381 if ( ::GetVersionEx(&info) )
1382 {
1383 s_version.initialized = true;
1384
1385 #if defined(__WXWINCE__)
1386 s_version.os = wxOS_WINDOWS_CE;
1387 #elif defined(__WXMICROWIN__)
1388 s_version.os = wxOS_WINDOWS_MICRO;
1389 #else // "normal" desktop Windows system, use run-time detection
1390 switch ( info.dwPlatformId )
1391 {
1392 case VER_PLATFORM_WIN32_NT:
1393 s_version.os = wxOS_WINDOWS_NT;
1394 break;
1395
1396 case VER_PLATFORM_WIN32_WINDOWS:
1397 s_version.os = wxOS_WINDOWS_9X;
1398 break;
1399 }
1400 #endif // Windows versions
1401
1402 s_version.verMaj = info.dwMajorVersion;
1403 s_version.verMin = info.dwMinorVersion;
1404 }
1405 else // GetVersionEx() failed
1406 {
1407 s_version.initialized = -1;
1408 }
1409 }
1410
1411 if ( s_version.initialized == 1 )
1412 {
1413 if ( verMaj )
1414 *verMaj = s_version.verMaj;
1415 if ( verMin )
1416 *verMin = s_version.verMin;
1417 }
1418
1419 // this works even if we were not initialized successfully as the initial
1420 // values of this field is 0 which is wxOS_UNKNOWN and exactly what we need
1421 return s_version.os;
1422 }
1423
1424 wxWinVersion wxGetWinVersion()
1425 {
1426 int verMaj,
1427 verMin;
1428 switch ( wxGetOsVersion(&verMaj, &verMin) )
1429 {
1430 case wxOS_WINDOWS_9X:
1431 if ( verMaj == 4 )
1432 {
1433 switch ( verMin )
1434 {
1435 case 0:
1436 return wxWinVersion_95;
1437
1438 case 10:
1439 return wxWinVersion_98;
1440
1441 case 90:
1442 return wxWinVersion_ME;
1443 }
1444 }
1445 break;
1446
1447 case wxOS_WINDOWS_NT:
1448 switch ( verMaj )
1449 {
1450 case 3:
1451 return wxWinVersion_NT3;
1452
1453 case 4:
1454 return wxWinVersion_NT4;
1455
1456 case 5:
1457 switch ( verMin )
1458 {
1459 case 0:
1460 return wxWinVersion_2000;
1461
1462 case 1:
1463 return wxWinVersion_XP;
1464
1465 case 2:
1466 return wxWinVersion_2003;
1467 }
1468 break;
1469
1470 case 6:
1471 return wxWinVersion_NT6;
1472 }
1473 break;
1474
1475 default:
1476 // Do nothing just to silence GCC warning
1477 break;
1478 }
1479
1480 return wxWinVersion_Unknown;
1481 }
1482
1483 // ----------------------------------------------------------------------------
1484 // sleep functions
1485 // ----------------------------------------------------------------------------
1486
1487 void wxMilliSleep(unsigned long milliseconds)
1488 {
1489 ::Sleep(milliseconds);
1490 }
1491
1492 void wxMicroSleep(unsigned long microseconds)
1493 {
1494 wxMilliSleep(microseconds/1000);
1495 }
1496
1497 void wxSleep(int nSecs)
1498 {
1499 wxMilliSleep(1000*nSecs);
1500 }
1501
1502 // ----------------------------------------------------------------------------
1503 // font encoding <-> Win32 codepage conversion functions
1504 // ----------------------------------------------------------------------------
1505
1506 extern WXDLLIMPEXP_BASE long wxEncodingToCharset(wxFontEncoding encoding)
1507 {
1508 switch ( encoding )
1509 {
1510 // although this function is supposed to return an exact match, do do
1511 // some mappings here for the most common case of "standard" encoding
1512 case wxFONTENCODING_SYSTEM:
1513 return DEFAULT_CHARSET;
1514
1515 case wxFONTENCODING_ISO8859_1:
1516 case wxFONTENCODING_ISO8859_15:
1517 case wxFONTENCODING_CP1252:
1518 return ANSI_CHARSET;
1519
1520 #if !defined(__WXMICROWIN__)
1521 // The following four fonts are multi-byte charsets
1522 case wxFONTENCODING_CP932:
1523 return SHIFTJIS_CHARSET;
1524
1525 case wxFONTENCODING_CP936:
1526 return GB2312_CHARSET;
1527
1528 #ifndef __WXWINCE__
1529 case wxFONTENCODING_CP949:
1530 return HANGUL_CHARSET;
1531 #endif
1532
1533 case wxFONTENCODING_CP950:
1534 return CHINESEBIG5_CHARSET;
1535
1536 // The rest are single byte encodings
1537 case wxFONTENCODING_CP1250:
1538 return EASTEUROPE_CHARSET;
1539
1540 case wxFONTENCODING_CP1251:
1541 return RUSSIAN_CHARSET;
1542
1543 case wxFONTENCODING_CP1253:
1544 return GREEK_CHARSET;
1545
1546 case wxFONTENCODING_CP1254:
1547 return TURKISH_CHARSET;
1548
1549 case wxFONTENCODING_CP1255:
1550 return HEBREW_CHARSET;
1551
1552 case wxFONTENCODING_CP1256:
1553 return ARABIC_CHARSET;
1554
1555 case wxFONTENCODING_CP1257:
1556 return BALTIC_CHARSET;
1557
1558 case wxFONTENCODING_CP874:
1559 return THAI_CHARSET;
1560 #endif // !__WXMICROWIN__
1561
1562 case wxFONTENCODING_CP437:
1563 return OEM_CHARSET;
1564
1565 default:
1566 // no way to translate this encoding into a Windows charset
1567 return -1;
1568 }
1569 }
1570
1571 // we have 2 versions of wxCharsetToCodepage(): the old one which directly
1572 // looks up the vlaues in the registry and the new one which is more
1573 // politically correct and has more chances to work on other Windows versions
1574 // as well but the old version is still needed for !wxUSE_FONTMAP case
1575 #if wxUSE_FONTMAP
1576
1577 #include "wx/fontmap.h"
1578
1579 extern WXDLLIMPEXP_BASE long wxEncodingToCodepage(wxFontEncoding encoding)
1580 {
1581 // There don't seem to be symbolic names for
1582 // these under Windows so I just copied the
1583 // values from MSDN.
1584
1585 unsigned int ret;
1586
1587 switch (encoding)
1588 {
1589 case wxFONTENCODING_ISO8859_1: ret = 28591; break;
1590 case wxFONTENCODING_ISO8859_2: ret = 28592; break;
1591 case wxFONTENCODING_ISO8859_3: ret = 28593; break;
1592 case wxFONTENCODING_ISO8859_4: ret = 28594; break;
1593 case wxFONTENCODING_ISO8859_5: ret = 28595; break;
1594 case wxFONTENCODING_ISO8859_6: ret = 28596; break;
1595 case wxFONTENCODING_ISO8859_7: ret = 28597; break;
1596 case wxFONTENCODING_ISO8859_8: ret = 28598; break;
1597 case wxFONTENCODING_ISO8859_9: ret = 28599; break;
1598 case wxFONTENCODING_ISO8859_10: ret = 28600; break;
1599 case wxFONTENCODING_ISO8859_11: ret = 874; break;
1600 // case wxFONTENCODING_ISO8859_12, // doesn't exist currently, but put it
1601 case wxFONTENCODING_ISO8859_13: ret = 28603; break;
1602 // case wxFONTENCODING_ISO8859_14: ret = 28604; break; // no correspondence on Windows
1603 case wxFONTENCODING_ISO8859_15: ret = 28605; break;
1604
1605 case wxFONTENCODING_KOI8: ret = 20866; break;
1606 case wxFONTENCODING_KOI8_U: ret = 21866; break;
1607
1608 case wxFONTENCODING_CP437: ret = 437; break;
1609 case wxFONTENCODING_CP850: ret = 850; break;
1610 case wxFONTENCODING_CP852: ret = 852; break;
1611 case wxFONTENCODING_CP855: ret = 855; break;
1612 case wxFONTENCODING_CP866: ret = 866; break;
1613 case wxFONTENCODING_CP874: ret = 874; break;
1614 case wxFONTENCODING_CP932: ret = 932; break;
1615 case wxFONTENCODING_CP936: ret = 936; break;
1616 case wxFONTENCODING_CP949: ret = 949; break;
1617 case wxFONTENCODING_CP950: ret = 950; break;
1618 case wxFONTENCODING_CP1250: ret = 1250; break;
1619 case wxFONTENCODING_CP1251: ret = 1251; break;
1620 case wxFONTENCODING_CP1252: ret = 1252; break;
1621 case wxFONTENCODING_CP1253: ret = 1253; break;
1622 case wxFONTENCODING_CP1254: ret = 1254; break;
1623 case wxFONTENCODING_CP1255: ret = 1255; break;
1624 case wxFONTENCODING_CP1256: ret = 1256; break;
1625 case wxFONTENCODING_CP1257: ret = 1257; break;
1626
1627 case wxFONTENCODING_EUC_JP: ret = 20932; break;
1628
1629 case wxFONTENCODING_MACROMAN: ret = 10000; break;
1630 case wxFONTENCODING_MACJAPANESE: ret = 10001; break;
1631 case wxFONTENCODING_MACCHINESETRAD: ret = 10002; break;
1632 case wxFONTENCODING_MACKOREAN: ret = 10003; break;
1633 case wxFONTENCODING_MACARABIC: ret = 10004; break;
1634 case wxFONTENCODING_MACHEBREW: ret = 10005; break;
1635 case wxFONTENCODING_MACGREEK: ret = 10006; break;
1636 case wxFONTENCODING_MACCYRILLIC: ret = 10007; break;
1637 case wxFONTENCODING_MACTHAI: ret = 10021; break;
1638 case wxFONTENCODING_MACCHINESESIMP: ret = 10008; break;
1639 case wxFONTENCODING_MACCENTRALEUR: ret = 10029; break;
1640 case wxFONTENCODING_MACCROATIAN: ret = 10082; break;
1641 case wxFONTENCODING_MACICELANDIC: ret = 10079; break;
1642 case wxFONTENCODING_MACROMANIAN: ret = 10009; break;
1643
1644 case wxFONTENCODING_ISO2022_JP: ret = 50222; break;
1645
1646 case wxFONTENCODING_UTF7: ret = 65000; break;
1647 case wxFONTENCODING_UTF8: ret = 65001; break;
1648
1649 default: return -1;
1650 }
1651
1652 if (::IsValidCodePage(ret) == 0)
1653 return -1;
1654
1655 CPINFO info;
1656 if (::GetCPInfo(ret, &info) == 0)
1657 return -1;
1658
1659 return (long) ret;
1660 }
1661
1662 extern long wxCharsetToCodepage(const char *name)
1663 {
1664 // first get the font encoding for this charset
1665 if ( !name )
1666 return -1;
1667
1668 wxFontEncoding enc = wxFontMapperBase::Get()->CharsetToEncoding(name, false);
1669 if ( enc == wxFONTENCODING_SYSTEM )
1670 return -1;
1671
1672 // the use the helper function
1673 return wxEncodingToCodepage(enc);
1674 }
1675
1676 #else // !wxUSE_FONTMAP
1677
1678 #include "wx/msw/registry.h"
1679
1680 // this should work if Internet Exploiter is installed
1681 extern long wxCharsetToCodepage(const char *name)
1682 {
1683 if (!name)
1684 return GetACP();
1685
1686 long CP = -1;
1687
1688 #if wxUSE_REGKEY
1689 wxString path(wxT("MIME\\Database\\Charset\\"));
1690 wxString cn(name);
1691
1692 // follow the alias loop
1693 for ( ;; )
1694 {
1695 wxRegKey key(wxRegKey::HKCR, path + cn);
1696
1697 if (!key.Exists())
1698 break;
1699
1700 // two cases: either there's an AliasForCharset string,
1701 // or there are Codepage and InternetEncoding dwords.
1702 // The InternetEncoding gives us the actual encoding,
1703 // the Codepage just says which Windows character set to
1704 // use when displaying the data.
1705 if (key.HasValue(wxT("InternetEncoding")) &&
1706 key.QueryValue(wxT("InternetEncoding"), &CP))
1707 break;
1708
1709 // no encoding, see if it's an alias
1710 if (!key.HasValue(wxT("AliasForCharset")) ||
1711 !key.QueryValue(wxT("AliasForCharset"), cn))
1712 break;
1713 }
1714 #endif // wxUSE_REGKEY
1715
1716 return CP;
1717 }
1718
1719 #endif // wxUSE_FONTMAP/!wxUSE_FONTMAP
1720
1721 extern "C" WXDLLIMPEXP_BASE HWND
1722 wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc)
1723 {
1724 wxCHECK_MSG( classname && pclassname && wndproc, NULL,
1725 wxT("NULL parameter in wxCreateHiddenWindow") );
1726
1727 // register the class fi we need to first
1728 if ( *pclassname == NULL )
1729 {
1730 WNDCLASS wndclass;
1731 wxZeroMemory(wndclass);
1732
1733 wndclass.lpfnWndProc = wndproc;
1734 wndclass.hInstance = wxGetInstance();
1735 wndclass.lpszClassName = classname;
1736
1737 if ( !::RegisterClass(&wndclass) )
1738 {
1739 wxLogLastError(wxT("RegisterClass() in wxCreateHiddenWindow"));
1740
1741 return NULL;
1742 }
1743
1744 *pclassname = classname;
1745 }
1746
1747 // next create the window
1748 HWND hwnd = ::CreateWindow
1749 (
1750 *pclassname,
1751 NULL,
1752 0, 0, 0, 0,
1753 0,
1754 (HWND) NULL,
1755 (HMENU)NULL,
1756 wxGetInstance(),
1757 (LPVOID) NULL
1758 );
1759
1760 if ( !hwnd )
1761 {
1762 wxLogLastError(wxT("CreateWindow() in wxCreateHiddenWindow"));
1763 }
1764
1765 return hwnd;
1766 }
wxWidgets (Impactor)