OSDN Git Service

9c550a54ce3f6b65fbe9c741840ea4d755f7d78a
[mutilities/MUtilities.git] / src / OSSupport_Win32.cpp
1 ///////////////////////////////////////////////////////////////////////////////
2 // MuldeR's Utilities for Qt
3 // Copyright (C) 2004-2016 LoRd_MuldeR <MuldeR2@GMX.de>
4 //
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Lesser General Public
7 // License as published by the Free Software Foundation; either
8 // version 2.1 of the License, or (at your option) any later version.
9 //
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 // Lesser General Public License for more details.
14 //
15 // You should have received a copy of the GNU Lesser General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
18 //
19 // http://www.gnu.org/licenses/lgpl-2.1.txt
20 //////////////////////////////////////////////////////////////////////////////////
21
22 //Win32 API
23 #define WIN32_LEAN_AND_MEAN 1
24 #include <Windows.h>
25 #include <Psapi.h>
26 #include <Sensapi.h>
27 #include <Shellapi.h>
28 #include <PowrProf.h>
29 #include <Mmsystem.h>
30 #pragma warning(push)
31 #pragma warning(disable:4091) //for MSVC2015
32 #include <ShlObj.h>
33 #pragma warning(pop)
34
35 //CRT
36 #include <io.h>
37
38 //Internal
39 #include <MUtils/Global.h>
40 #include <MUtils/OSSupport.h>
41 #include <MUtils/GUI.h>
42 #include "CriticalSection_Win32.h"
43 #include "Utils_Win32.h"
44
45 //Qt
46 #include <QMap>
47 #include <QReadWriteLock>
48 #include <QDir>
49 #include <QWidget>
50 #include <QProcess>
51
52 //Main thread ID
53 static const DWORD g_main_thread_id = GetCurrentThreadId();
54
55 ///////////////////////////////////////////////////////////////////////////////
56 // SYSTEM MESSAGE
57 ///////////////////////////////////////////////////////////////////////////////
58
59 static const UINT g_msgBoxFlags = MB_TOPMOST | MB_TASKMODAL | MB_SETFOREGROUND;
60
61 void MUtils::OS::system_message_nfo(const wchar_t *const title, const wchar_t *const text)
62 {
63         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONINFORMATION);
64 }
65
66 void MUtils::OS::system_message_wrn(const wchar_t *const title, const wchar_t *const text)
67 {
68         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONWARNING);
69 }
70
71 void MUtils::OS::system_message_err(const wchar_t *const title, const wchar_t *const text)
72 {
73         MessageBoxW(NULL, text, title, g_msgBoxFlags | MB_ICONERROR);
74 }
75
76 ///////////////////////////////////////////////////////////////////////////////
77 // FETCH CLI ARGUMENTS
78 ///////////////////////////////////////////////////////////////////////////////
79
80 static QReadWriteLock                          g_arguments_lock;
81 static QScopedPointer<MUtils::OS::ArgumentMap> g_arguments_list;
82
83 const QStringList MUtils::OS::crack_command_line(const QString &command_line)
84 {
85         int nArgs = 0;
86         LPWSTR *szArglist = CommandLineToArgvW(command_line.isNull() ? GetCommandLineW() : MUTILS_WCHR(command_line), &nArgs);
87
88         QStringList command_line_tokens;
89         if(NULL != szArglist)
90         {
91                 for(int i = 0; i < nArgs; i++)
92                 {
93                         const QString argStr = MUTILS_QSTR(szArglist[i]).trimmed();
94                         if(!argStr.isEmpty())
95                         {
96                                 command_line_tokens << argStr;
97                         }
98                 }
99                 LocalFree(szArglist);
100         }
101
102         return command_line_tokens;
103 }
104
105 const MUtils::OS::ArgumentMap &MUtils::OS::arguments(void)
106 {
107         QReadLocker readLock(&g_arguments_lock);
108
109         //Already initialized?
110         if(!g_arguments_list.isNull())
111         {
112                 return (*(g_arguments_list.data()));
113         }
114
115         readLock.unlock();
116         QWriteLocker writeLock(&g_arguments_lock);
117
118         //Still not initialized?
119         if(!g_arguments_list.isNull())
120         {
121                 return (*(g_arguments_list.data()));
122         }
123
124         g_arguments_list.reset(new ArgumentMap());
125         const QStringList argList = crack_command_line();
126
127         if(!argList.isEmpty())
128         {
129                 const QString argPrefix = QLatin1String("--");
130                 const QChar   separator = QLatin1Char('=');
131
132                 bool firstToken = true;
133                 for(QStringList::ConstIterator iter = argList.constBegin(); iter != argList.constEnd(); iter++)
134                 {
135                         if(firstToken)
136                         {
137                                 firstToken = false;
138                                 continue; /*skip executable file name*/
139                         }
140                         if(iter->startsWith(argPrefix))
141                         {
142                                 const QString argData = iter->mid(2).trimmed();
143                                 if(argData.length() > 0)
144                                 {
145                                         const int separatorIndex = argData.indexOf(separator);
146                                         if(separatorIndex > 0)
147                                         {
148                                                 const QString argKey = argData.left(separatorIndex).trimmed();
149                                                 const QString argVal = argData.mid(separatorIndex + 1).trimmed();
150                                                 g_arguments_list->insertMulti(argKey.toLower(), argVal);
151                                         }
152                                         else
153                                         {
154                                                 g_arguments_list->insertMulti(argData.toLower(), QString());
155                                         }
156                                 }
157                         }
158                 }
159         }
160         else if(argList.empty())
161         {
162                 qWarning("CommandLineToArgvW() has failed !!!");
163         }
164
165         return (*(g_arguments_list.data()));
166 }
167
168 ///////////////////////////////////////////////////////////////////////////////
169 // COPY FILE
170 ///////////////////////////////////////////////////////////////////////////////
171
172 typedef struct _progress_callback_data_t
173 {
174         MUtils::OS::progress_callback_t callback_function;
175         void *user_data;
176 }
177 progress_callback_data_t;
178
179 static DWORD __stdcall copy_file_progress(LARGE_INTEGER TotalFileSize, LARGE_INTEGER TotalBytesTransferred, LARGE_INTEGER StreamSize, LARGE_INTEGER StreamBytesTransferred, DWORD dwStreamNumber, DWORD dwCallbackReason, HANDLE hSourceFile, HANDLE hDestinationFile, LPVOID lpData)
180 {
181         if(const progress_callback_data_t *data = (progress_callback_data_t*) lpData)
182         {
183                 const double progress = qBound(0.0, double(TotalBytesTransferred.QuadPart) / double(TotalFileSize.QuadPart), 1.0);
184                 return data->callback_function(progress, data->user_data) ? PROGRESS_CONTINUE : PROGRESS_CANCEL;
185         }
186         return PROGRESS_CONTINUE;
187 }
188
189 MUTILS_API bool MUtils::OS::copy_file(const QString &sourcePath, const QString &outputPath, const bool &overwrite, const progress_callback_t callback, void *const userData)
190 {
191         progress_callback_data_t callback_data = { callback, userData };
192         BOOL cancel = FALSE;
193         const BOOL result = CopyFileExW(MUTILS_WCHR(QDir::toNativeSeparators(sourcePath)), MUTILS_WCHR(QDir::toNativeSeparators(outputPath)), ((callback_data.callback_function) ? copy_file_progress : NULL), ((callback_data.callback_function) ? &callback_data : NULL), &cancel, (overwrite ? 0 : COPY_FILE_FAIL_IF_EXISTS));
194
195         if(result == FALSE)
196         {
197                 const DWORD errorCode = GetLastError();
198                 if(errorCode != ERROR_REQUEST_ABORTED)
199                 {
200                         qWarning("CopyFile() failed with error code 0x%08X!", errorCode);
201                 }
202                 else
203                 {
204                         qWarning("CopyFile() operation was abroted by user!");
205                 }
206         }
207
208         return (result != FALSE);
209 }
210
211 ///////////////////////////////////////////////////////////////////////////////
212 // GET FILE VERSION
213 ///////////////////////////////////////////////////////////////////////////////
214
215 static bool get_file_version_helper(const QString fileName, PVOID buffer, const size_t &size, quint16 *const major, quint16 *const minor, quint16 *const patch, quint16 *const build)
216 {
217         if(!GetFileVersionInfo(MUTILS_WCHR(fileName), 0, size, buffer))
218         {
219                 qWarning("GetFileVersionInfo() has failed, file version cannot be determined!");
220                 return false;
221         }
222
223         VS_FIXEDFILEINFO *verInfo;
224         UINT verInfoLen;
225         if(!VerQueryValue(buffer, L"\\", (LPVOID*)(&verInfo), &verInfoLen))
226         {
227                 qWarning("VerQueryValue() has failed, file version cannot be determined!");
228                 return false;
229         }
230
231         if(major) *major = quint16((verInfo->dwFileVersionMS >> 16) & 0x0000FFFF);
232         if(minor) *minor = quint16((verInfo->dwFileVersionMS)       & 0x0000FFFF);
233         if(patch) *patch = quint16((verInfo->dwFileVersionLS >> 16) & 0x0000FFFF);
234         if(build) *build = quint16((verInfo->dwFileVersionLS)       & 0x0000FFFF);
235
236         return true;
237 }
238
239 bool MUtils::OS::get_file_version(const QString fileName, quint16 *const major, quint16 *const minor, quint16 *const patch, quint16 *const build)
240 {
241         if(major) *major = 0U; if(minor) *minor = 0U;
242         if(patch) *patch = 0U; if(build) *build = 0U;
243
244         const DWORD size = GetFileVersionInfoSize(MUTILS_WCHR(fileName), NULL);
245         if(size < 1)
246         {
247                 qWarning("GetFileVersionInfoSize() has failed, file version cannot be determined!");
248                 return false;
249         }
250         
251         PVOID buffer = _malloca(size);
252         if(!buffer)
253         {
254                 qWarning("Memory allocation has failed!");
255                 return false;
256         }
257
258         const bool success = get_file_version_helper(fileName, buffer, size, major, minor, patch, build);
259
260         _freea(buffer);
261         return success;
262 }
263
264 ///////////////////////////////////////////////////////////////////////////////
265 // OS VERSION DETECTION
266 ///////////////////////////////////////////////////////////////////////////////
267
268 static bool g_os_version_initialized = false;
269 static MUtils::OS::Version::os_version_t g_os_version_info = MUtils::OS::Version::UNKNOWN_OPSYS;
270 static QReadWriteLock g_os_version_lock;
271
272 //Maps marketing names to the actual Windows NT versions
273 static const struct
274 {
275         MUtils::OS::Version::os_version_t version;
276         const char friendlyName[64];
277 }
278 g_os_version_lut[] =
279 {
280         { MUtils::OS::Version::WINDOWS_WIN2K, "Windows 2000"                                  },        //2000
281         { MUtils::OS::Version::WINDOWS_WINXP, "Windows XP or Windows XP Media Center Edition" },        //XP
282         { MUtils::OS::Version::WINDOWS_XPX64, "Windows Server 2003 or Windows XP x64"         },        //XP_x64
283         { MUtils::OS::Version::WINDOWS_VISTA, "Windows Vista or Windows Server 2008"          },        //Vista
284         { MUtils::OS::Version::WINDOWS_WIN70, "Windows 7 or Windows Server 2008 R2"           },        //7
285         { MUtils::OS::Version::WINDOWS_WIN80, "Windows 8 or Windows Server 2012"              },        //8
286         { MUtils::OS::Version::WINDOWS_WIN81, "Windows 8.1 or Windows Server 2012 R2"         },        //8.1
287         { MUtils::OS::Version::WINDOWS_WN100, "Windows 10 or Windows Server 2014 (Preview)"   },        //10
288         { MUtils::OS::Version::UNKNOWN_OPSYS, "N/A" }
289 };
290
291 //OS version data dtructures
292 namespace MUtils
293 {
294         namespace OS
295         {
296                 namespace Version
297                 {
298                         //Comparision operators for os_version_t
299                         bool os_version_t::operator== (const os_version_t &rhs) const { return (type == rhs.type) && (versionMajor == rhs.versionMajor) && ((versionMinor == rhs.versionMinor)); }
300                         bool os_version_t::operator!= (const os_version_t &rhs) const { return (type != rhs.type) || (versionMajor != rhs.versionMajor) || ((versionMinor != rhs.versionMinor)); }
301                         bool os_version_t::operator>  (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor > rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor >  rhs.versionMinor))); }
302                         bool os_version_t::operator>= (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor > rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor >= rhs.versionMinor))); }
303                         bool os_version_t::operator<  (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor < rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor <  rhs.versionMinor))); }
304                         bool os_version_t::operator<= (const os_version_t &rhs) const { return (type == rhs.type) && ((versionMajor < rhs.versionMajor) || ((versionMajor == rhs.versionMajor) && (versionMinor <= rhs.versionMinor))); }
305
306                         //Known Windows NT versions
307                         const os_version_t WINDOWS_WIN2K = { OS_WINDOWS,  5, 0 };       // 2000
308                         const os_version_t WINDOWS_WINXP = { OS_WINDOWS,  5, 1 };       // XP
309                         const os_version_t WINDOWS_XPX64 = { OS_WINDOWS,  5, 2 };       // XP_x64
310                         const os_version_t WINDOWS_VISTA = { OS_WINDOWS,  6, 0 };       // Vista
311                         const os_version_t WINDOWS_WIN70 = { OS_WINDOWS,  6, 1 };       // 7
312                         const os_version_t WINDOWS_WIN80 = { OS_WINDOWS,  6, 2 };       // 8
313                         const os_version_t WINDOWS_WIN81 = { OS_WINDOWS,  6, 3 };       // 8.1
314                         const os_version_t WINDOWS_WN100 = { OS_WINDOWS, 10, 0 };       // 10
315
316                         //Unknown OS
317                         const os_version_t UNKNOWN_OPSYS = { OS_UNKNOWN, 0, 0 };        // N/A
318                 }
319         }
320 }
321
322 static void initialize_os_version(OSVERSIONINFOEXW *const osInfo)
323 {
324         memset(osInfo, 0, sizeof(OSVERSIONINFOEXW));
325         osInfo->dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
326 }
327
328 static bool rtl_get_version(OSVERSIONINFOEXW *const osInfo)
329 {
330         typedef LONG(__stdcall *RtlGetVersion)(LPOSVERSIONINFOEXW);
331         if (const HMODULE ntdll = GetModuleHandleW(L"ntdll"))
332         {
333                 if (const RtlGetVersion pRtlGetVersion = (RtlGetVersion)GetProcAddress(ntdll, "RtlGetVersion"))
334                 {
335                         initialize_os_version(osInfo);
336                         if (pRtlGetVersion(osInfo) == 0)
337                         {
338                                 return true;
339                         }
340                 }
341         }
342
343         //Fallback
344         initialize_os_version(osInfo);
345         return (GetVersionExW((LPOSVERSIONINFOW)osInfo) != FALSE);
346 }
347
348 static bool rtl_verify_version(OSVERSIONINFOEXW *const osInfo, const ULONG typeMask, const ULONGLONG condMask)
349 {
350         typedef LONG(__stdcall *RtlVerifyVersionInfo)(LPOSVERSIONINFOEXW, ULONG, ULONGLONG);
351         if (const HMODULE ntdll = GetModuleHandleW(L"ntdll"))
352         {
353                 if (const RtlVerifyVersionInfo pRtlVerifyVersionInfo = (RtlVerifyVersionInfo)GetProcAddress(ntdll, "RtlVerifyVersionInfo"))
354                 {
355                         if (pRtlVerifyVersionInfo(osInfo, typeMask, condMask) == 0)
356                         {
357                                 return true;
358                         }
359                 }
360         }
361
362         //Fallback
363         return (VerifyVersionInfoW(osInfo, typeMask, condMask) != FALSE);
364 }
365
366 static bool verify_os_version(const DWORD major, const DWORD minor)
367 {
368         OSVERSIONINFOEXW osvi;
369         DWORDLONG dwlConditionMask = 0;
370
371         //Initialize the OSVERSIONINFOEX structure
372         memset(&osvi, 0, sizeof(OSVERSIONINFOEXW));
373         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
374         osvi.dwMajorVersion = major;
375         osvi.dwMinorVersion = minor;
376         osvi.dwPlatformId = VER_PLATFORM_WIN32_NT;
377
378         //Initialize the condition mask
379         VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
380         VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
381         VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID,   VER_EQUAL);
382
383         // Perform the test
384         const BOOL ret = rtl_verify_version(&osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_PLATFORMID, dwlConditionMask);
385
386         //Error checking
387         if(!ret)
388         {
389                 if(GetLastError() != ERROR_OLD_WIN_VERSION)
390                 {
391                         qWarning("VerifyVersionInfo() system call has failed!");
392                 }
393         }
394
395         return (ret != FALSE);
396 }
397
398 static bool get_real_os_version(unsigned int *major, unsigned int *minor, bool *pbOverride)
399 {
400         *major = *minor = 0;
401         *pbOverride = false;
402         
403         //Initialize local variables
404         OSVERSIONINFOEXW osvi;
405         memset(&osvi, 0, sizeof(OSVERSIONINFOEXW));
406         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
407
408         //Try GetVersionEx() first
409         if(rtl_get_version(&osvi) == FALSE)
410         {
411                 qWarning("GetVersionEx() has failed, cannot detect Windows version!");
412                 return false;
413         }
414
415         //Make sure we are running on NT
416         if(osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
417         {
418                 *major = osvi.dwMajorVersion;
419                 *minor = osvi.dwMinorVersion;
420         }
421         else
422         {
423                 qWarning("Not running on Windows NT, unsupported operating system!");
424                 return false;
425         }
426
427         //Determine the real *major* version first
428         forever
429         {
430                 const DWORD nextMajor = (*major) + 1;
431                 if(verify_os_version(nextMajor, 0))
432                 {
433                         *pbOverride = true;
434                         *major = nextMajor;
435                         *minor = 0;
436                         continue;
437                 }
438                 break;
439         }
440
441         //Now also determine the real *minor* version
442         forever
443         {
444                 const DWORD nextMinor = (*minor) + 1;
445                 if(verify_os_version((*major), nextMinor))
446                 {
447                         *pbOverride = true;
448                         *minor = nextMinor;
449                         continue;
450                 }
451                 break;
452         }
453
454         return true;
455 }
456
457 const MUtils::OS::Version::os_version_t &MUtils::OS::os_version(void)
458 {
459         QReadLocker readLock(&g_os_version_lock);
460
461         //Already initialized?
462         if(g_os_version_initialized)
463         {
464                 return g_os_version_info;
465         }
466         
467         readLock.unlock();
468         QWriteLocker writeLock(&g_os_version_lock);
469
470         //Initialized now?
471         if(g_os_version_initialized)
472         {
473                 return g_os_version_info;
474         }
475
476         //Detect OS version
477         unsigned int major, minor; bool overrideFlg;
478         if(get_real_os_version(&major, &minor, &overrideFlg))
479         {
480                 g_os_version_info.type = Version::OS_WINDOWS;
481                 g_os_version_info.versionMajor = major;
482                 g_os_version_info.versionMinor = minor;
483                 g_os_version_info.overrideFlag = overrideFlg;
484         }
485         else
486         {
487                 qWarning("Failed to determin the operating system version!");
488         }
489
490         //Completed
491         g_os_version_initialized = true;
492         return g_os_version_info;
493 }
494
495 const char *MUtils::OS::os_friendly_name(const MUtils::OS::Version::os_version_t &os_version)
496 {
497         for(size_t i = 0; g_os_version_lut[i].version != MUtils::OS::Version::UNKNOWN_OPSYS; i++)
498         {
499                 if(os_version == g_os_version_lut[i].version)
500                 {
501                         return g_os_version_lut[i].friendlyName;
502                 }
503         }
504
505         return NULL;
506 }
507
508 ///////////////////////////////////////////////////////////////////////////////
509 // WINE DETECTION
510 ///////////////////////////////////////////////////////////////////////////////
511
512 static bool g_wine_deteced = false;
513 static bool g_wine_initialized = false;
514 static QReadWriteLock g_wine_lock;
515
516 static const bool detect_wine(void)
517 {
518         void *const ptr = MUtils::Win32Utils::resolve<void*>(QLatin1String("ntdll"), QLatin1String("wine_get_version"));
519         return (ptr != NULL);
520 }
521
522 const bool &MUtils::OS::running_on_wine(void)
523 {
524         QReadLocker readLock(&g_wine_lock);
525
526         //Already initialized?
527         if(g_wine_initialized)
528         {
529                 return g_wine_deteced;
530         }
531
532         readLock.unlock();
533         QWriteLocker writeLock(&g_wine_lock);
534
535         //Initialized now?
536         if(g_wine_initialized)
537         {
538                 return g_wine_deteced;
539         }
540
541         //Try to detect Wine
542         g_wine_deteced = detect_wine();
543         g_wine_initialized = true;
544
545         return g_wine_deteced;
546 }
547
548 ///////////////////////////////////////////////////////////////////////////////
549 // KNWON FOLDERS
550 ///////////////////////////////////////////////////////////////////////////////
551
552 typedef QMap<size_t, QString> KFMap;
553 typedef HRESULT (WINAPI *SHGetKnownFolderPath_t)(const GUID &rfid, DWORD dwFlags, HANDLE hToken, PWSTR *ppszPath);
554 typedef HRESULT (WINAPI *SHGetFolderPath_t)     (HWND hwndOwner, int nFolder, HANDLE hToken, DWORD dwFlags, LPWSTR pszPath);
555
556 static QScopedPointer<KFMap>  g_known_folders_map;
557 static QReadWriteLock         g_known_folders_lock;
558
559 const QString &MUtils::OS::known_folder(known_folder_t folder_id)
560 {
561         typedef enum { KF_FLAG_CREATE = 0x00008000 } kf_flags_t;
562         
563         struct
564         {
565                 const int csidl;
566                 const GUID guid;
567         }
568         static s_folders[] =
569         {
570                 { 0x001c, {0xF1B32785,0x6FBA,0x4FCF,{0x9D,0x55,0x7B,0x8E,0x7F,0x15,0x70,0x91}} },  //CSIDL_LOCAL_APPDATA
571                 { 0x0026, {0x905e63b6,0xc1bf,0x494e,{0xb2,0x9c,0x65,0xb7,0x32,0xd3,0xd2,0x1a}} },  //CSIDL_PROGRAM_FILES
572                 { 0x0024, {0xF38BF404,0x1D43,0x42F2,{0x93,0x05,0x67,0xDE,0x0B,0x28,0xFC,0x23}} },  //CSIDL_WINDOWS_FOLDER
573                 { 0x0025, {0x1AC14E77,0x02E7,0x4E5D,{0xB7,0x44,0x2E,0xB1,0xAE,0x51,0x98,0xB7}} },  //CSIDL_SYSTEM_FOLDER
574         };
575
576         size_t folderId = size_t(-1);
577
578         switch(folder_id)
579         {
580                 case FOLDER_LOCALAPPDATA: folderId = 0; break;
581                 case FOLDER_PROGRAMFILES: folderId = 1; break;
582                 case FOLDER_SYSTROOT_DIR: folderId = 2; break;
583                 case FOLDER_SYSTEMFOLDER: folderId = 3; break;
584         }
585
586         if(folderId == size_t(-1))
587         {
588                 qWarning("Invalid 'known' folder was requested!");
589                 return *reinterpret_cast<QString*>(NULL);
590         }
591
592         QReadLocker readLock(&g_known_folders_lock);
593
594         //Already in cache?
595         if(!g_known_folders_map.isNull())
596         {
597                 if(g_known_folders_map->contains(folderId))
598                 {
599                         return g_known_folders_map->operator[](folderId);
600                 }
601         }
602
603         //Obtain write lock to initialize
604         readLock.unlock();
605         QWriteLocker writeLock(&g_known_folders_lock);
606
607         //Still not in cache?
608         if(!g_known_folders_map.isNull())
609         {
610                 if(g_known_folders_map->contains(folderId))
611                 {
612                         return g_known_folders_map->operator[](folderId);
613                 }
614         }
615
616         //Initialize on first call
617         if(g_known_folders_map.isNull())
618         {
619                 g_known_folders_map.reset(new QMap<size_t, QString>());
620         }
621
622         QString folderPath;
623
624         //Now try to get the folder path!
625         if(const SHGetKnownFolderPath_t known_folders_fpGetKnownFolderPath = MUtils::Win32Utils::resolve<SHGetKnownFolderPath_t>(QLatin1String("shell32"), QLatin1String("SHGetKnownFolderPath")))
626         {
627                 WCHAR *path = NULL;
628                 if(known_folders_fpGetKnownFolderPath(s_folders[folderId].guid, KF_FLAG_CREATE, NULL, &path) == S_OK)
629                 {
630                         //MessageBoxW(0, path, L"SHGetKnownFolderPath", MB_TOPMOST);
631                         QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path)));
632                         if(folderTemp.exists())
633                         {
634                                 folderPath = folderTemp.canonicalPath();
635                         }
636                         CoTaskMemFree(path);
637                 }
638         }
639         else if(const SHGetFolderPath_t known_folders_fpGetFolderPath = MUtils::Win32Utils::resolve<SHGetFolderPath_t>(QLatin1String("shell32"), QLatin1String("SHGetFolderPathW")))
640         {
641                 QScopedArrayPointer<WCHAR> path(new WCHAR[4096]);
642                 if(known_folders_fpGetFolderPath(NULL, s_folders[folderId].csidl | CSIDL_FLAG_CREATE, NULL, NULL, path.data()) == S_OK)
643                 {
644                         //MessageBoxW(0, path, L"SHGetFolderPathW", MB_TOPMOST);
645                         QDir folderTemp = QDir(QDir::fromNativeSeparators(MUTILS_QSTR(path.data())));
646                         if(folderTemp.exists())
647                         {
648                                 folderPath = folderTemp.canonicalPath();
649                         }
650                 }
651         }
652
653         //Update cache
654         g_known_folders_map->insert(folderId, folderPath);
655         return g_known_folders_map->operator[](folderId);
656 }
657
658 ///////////////////////////////////////////////////////////////////////////////
659 // CURRENT DATA & TIME
660 ///////////////////////////////////////////////////////////////////////////////
661
662 QDate MUtils::OS::current_date(void)
663 {
664         const DWORD MAX_PROC = 1024;
665         QScopedArrayPointer<DWORD> processes(new DWORD[MAX_PROC]);
666         DWORD bytesReturned = 0;
667         
668         if(!EnumProcesses(processes.data(), sizeof(DWORD) * MAX_PROC, &bytesReturned))
669         {
670                 return QDate::currentDate();
671         }
672
673         const DWORD procCount = bytesReturned / sizeof(DWORD);
674         ULARGE_INTEGER lastStartTime;
675         memset(&lastStartTime, 0, sizeof(ULARGE_INTEGER));
676
677         for(DWORD i = 0; i < procCount; i++)
678         {
679                 if(HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, processes[i]))
680                 {
681                         FILETIME processTime[4];
682                         if(GetProcessTimes(hProc, &processTime[0], &processTime[1], &processTime[2], &processTime[3]))
683                         {
684                                 ULARGE_INTEGER timeCreation;
685                                 timeCreation.LowPart  = processTime[0].dwLowDateTime;
686                                 timeCreation.HighPart = processTime[0].dwHighDateTime;
687                                 if(timeCreation.QuadPart > lastStartTime.QuadPart)
688                                 {
689                                         lastStartTime.QuadPart = timeCreation.QuadPart;
690                                 }
691                         }
692                         CloseHandle(hProc);
693                 }
694         }
695         
696         FILETIME lastStartTime_fileTime;
697         lastStartTime_fileTime.dwHighDateTime = lastStartTime.HighPart;
698         lastStartTime_fileTime.dwLowDateTime  = lastStartTime.LowPart;
699
700         FILETIME lastStartTime_localTime;
701         if(!FileTimeToLocalFileTime(&lastStartTime_fileTime, &lastStartTime_localTime))
702         {
703                 memcpy(&lastStartTime_localTime, &lastStartTime_fileTime, sizeof(FILETIME));
704         }
705         
706         SYSTEMTIME lastStartTime_system;
707         if(!FileTimeToSystemTime(&lastStartTime_localTime, &lastStartTime_system))
708         {
709                 memset(&lastStartTime_system, 0, sizeof(SYSTEMTIME));
710                 lastStartTime_system.wYear = 1970; lastStartTime_system.wMonth = lastStartTime_system.wDay = 1;
711         }
712
713         const QDate currentDate = QDate::currentDate();
714         const QDate processDate = QDate(lastStartTime_system.wYear, lastStartTime_system.wMonth, lastStartTime_system.wDay);
715         return (currentDate >= processDate) ? currentDate : processDate;
716 }
717
718 quint64 MUtils::OS::current_file_time(void)
719 {
720         FILETIME fileTime;
721         GetSystemTimeAsFileTime(&fileTime);
722
723         ULARGE_INTEGER temp;
724         temp.HighPart = fileTime.dwHighDateTime;
725         temp.LowPart = fileTime.dwLowDateTime;
726
727         return temp.QuadPart;
728 }
729
730 ///////////////////////////////////////////////////////////////////////////////
731 // FILE PATH FROM FD
732 ///////////////////////////////////////////////////////////////////////////////
733
734 typedef DWORD(_stdcall *GetPathNameByHandleFun)(HANDLE hFile, LPWSTR lpszFilePath, DWORD cchFilePath, DWORD dwFlags);
735
736 static QString get_file_path_drive_list(void)
737 {
738         QString list;
739         const DWORD len = GetLogicalDriveStringsW(0, NULL);
740         if (len > 0)
741         {
742                 if (wchar_t *const buffer = (wchar_t*) _malloca(sizeof(wchar_t) * len))
743                 {
744                         const DWORD ret = GetLogicalDriveStringsW(len, buffer);
745                         if ((ret > 0) && (ret < len))
746                         {
747                                 const wchar_t *ptr = buffer;
748                                 while (const size_t current_len = wcslen(ptr))
749                                 {
750                                         list.append(QChar(*reinterpret_cast<const ushort*>(ptr)));
751                                         ptr += (current_len + 1);
752                                 }
753                         }
754                         _freea(buffer);
755                 }
756         }
757         return list;
758 }
759
760 static void get_file_path_translate(QString &path)
761 {
762         static const DWORD BUFSIZE = 2048;
763         wchar_t buffer[BUFSIZE], drive[3];
764
765         const QString driveList = get_file_path_drive_list();
766         wcscpy_s(drive, 3, L"?:");
767         for (const wchar_t *current = MUTILS_WCHR(driveList); *current; current++)
768         {
769                 drive[0] = (*current);
770                 if (QueryDosDeviceW(drive, buffer, MAX_PATH))
771                 {
772                         const QString prefix = MUTILS_QSTR(buffer);
773                         if (path.startsWith(prefix, Qt::CaseInsensitive))
774                         {
775                                 path.remove(0, prefix.length()).prepend(QLatin1Char(':')).prepend(QChar(*reinterpret_cast<const ushort*>(current)));
776                                 break;
777                         }
778                 }
779         }
780 }
781
782 static QString get_file_path_fallback(const HANDLE &hFile)
783 {
784         QString filePath;
785
786         const HANDLE hFileMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 1, NULL);
787         if (hFileMap)
788         {
789                 void *const pMem = MapViewOfFile(hFileMap, FILE_MAP_READ, 0, 0, 1);
790                 if (pMem)
791                 {
792                         static const size_t BUFFSIZE = 2048;
793                         wchar_t buffer[BUFFSIZE];
794                         if (GetMappedFileNameW(GetCurrentProcess(), pMem, buffer, BUFFSIZE) > 0)
795                         {
796                                 filePath = MUTILS_QSTR(buffer);
797                         }
798                         UnmapViewOfFile(pMem);
799                 }
800                 CloseHandle(hFileMap);
801         }
802
803         if (!filePath.isEmpty())
804         {
805                 get_file_path_translate(filePath);
806         }
807
808         return filePath;
809 }
810
811 QString MUtils::OS::get_file_path(const int &fd)
812 {
813         if (fd >= 0)
814         {
815                 const GetPathNameByHandleFun getPathNameByHandleFun = MUtils::Win32Utils::resolve<GetPathNameByHandleFun>(QLatin1String("kernel32"), QLatin1String("GetFinalPathNameByHandleW"));
816                 if (!getPathNameByHandleFun)
817                 {
818                         return get_file_path_fallback((HANDLE)_get_osfhandle(fd));
819                 }
820
821                 const HANDLE handle = (HANDLE) _get_osfhandle(fd);
822                 const DWORD len = getPathNameByHandleFun(handle, NULL, 0, FILE_NAME_OPENED);
823                 if (len > 0)
824                 {
825                         if (wchar_t *const buffer = (wchar_t*)_malloca(sizeof(wchar_t) * len))
826                         {
827                                 const DWORD ret = getPathNameByHandleFun(handle, buffer, len, FILE_NAME_OPENED);
828                                 if ((ret > 0) && (ret < len))
829                                 {
830                                         const QString path(MUTILS_QSTR(buffer));
831                                         return path.startsWith(QLatin1String("\\\\?\\")) ? path.mid(4) : path;
832                                 }
833                                 _freea(buffer);
834                         }
835                 }
836         }
837
838         return QString();
839 }
840
841 ///////////////////////////////////////////////////////////////////////////////
842 // PROCESS ELEVATION
843 ///////////////////////////////////////////////////////////////////////////////
844
845 static bool user_is_admin_helper(void)
846 {
847         HANDLE hToken = NULL;
848         if(!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
849         {
850                 return false;
851         }
852
853         DWORD dwSize = 0;
854         if(!GetTokenInformation(hToken, TokenGroups, NULL, 0, &dwSize))
855         {
856                 if(GetLastError() != ERROR_INSUFFICIENT_BUFFER)
857                 {
858                         CloseHandle(hToken);
859                         return false;
860                 }
861         }
862
863         PTOKEN_GROUPS lpGroups = (PTOKEN_GROUPS) malloc(dwSize);
864         if(!lpGroups)
865         {
866                 CloseHandle(hToken);
867                 return false;
868         }
869
870         if(!GetTokenInformation(hToken, TokenGroups, lpGroups, dwSize, &dwSize))
871         {
872                 free(lpGroups);
873                 CloseHandle(hToken);
874                 return false;
875         }
876
877         PSID lpSid = NULL; SID_IDENTIFIER_AUTHORITY Authority = {SECURITY_NT_AUTHORITY};
878         if(!AllocateAndInitializeSid(&Authority, 2, SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, &lpSid))
879         {
880                 free(lpGroups);
881                 CloseHandle(hToken);
882                 return false;
883         }
884
885         bool bResult = false;
886         for(DWORD i = 0; i < lpGroups->GroupCount; i++)
887         {
888                 if(EqualSid(lpSid, lpGroups->Groups[i].Sid))
889                 {
890                         bResult = true;
891                         break;
892                 }
893         }
894
895         FreeSid(lpSid);
896         free(lpGroups);
897         CloseHandle(hToken);
898         return bResult;
899 }
900
901 bool MUtils::OS::is_elevated(bool *bIsUacEnabled)
902 {
903         if(bIsUacEnabled)
904         {
905                 *bIsUacEnabled = false;
906         }
907
908         bool bIsProcessElevated = false;
909         HANDLE hToken = NULL;
910         
911         if(OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
912         {
913                 TOKEN_ELEVATION_TYPE tokenElevationType;
914                 DWORD returnLength;
915                 if(GetTokenInformation(hToken, TokenElevationType, &tokenElevationType, sizeof(TOKEN_ELEVATION_TYPE), &returnLength))
916                 {
917                         if(returnLength == sizeof(TOKEN_ELEVATION_TYPE))
918                         {
919                                 switch(tokenElevationType)
920                                 {
921                                 case TokenElevationTypeDefault:
922                                         qDebug("Process token elevation type: Default -> UAC is disabled.\n");
923                                         break;
924                                 case TokenElevationTypeFull:
925                                         qWarning("Process token elevation type: Full -> potential security risk!\n");
926                                         bIsProcessElevated = true;
927                                         if(bIsUacEnabled) *bIsUacEnabled = true;
928                                         break;
929                                 case TokenElevationTypeLimited:
930                                         qDebug("Process token elevation type: Limited -> not elevated.\n");
931                                         if(bIsUacEnabled) *bIsUacEnabled = true;
932                                         break;
933                                 default:
934                                         qWarning("Unknown tokenElevationType value: %d", tokenElevationType);
935                                         break;
936                                 }
937                         }
938                         else
939                         {
940                                 qWarning("GetTokenInformation() return an unexpected size!");
941                         }
942                 }
943                 CloseHandle(hToken);
944         }
945         else
946         {
947                 qWarning("Failed to open process token!");
948         }
949
950         return bIsProcessElevated;
951 }
952
953 bool MUtils::OS::user_is_admin(void)
954 {
955         bool isAdmin = false;
956
957         //Check for process elevation and UAC support first!
958         if(MUtils::OS::is_elevated(&isAdmin))
959         {
960                 qWarning("Process is elevated -> user is admin!");
961                 return true;
962         }
963         
964         //If not elevated and UAC is not available -> user must be in admin group!
965         if(!isAdmin)
966         {
967                 qDebug("UAC is disabled/unavailable -> checking for Administrators group");
968                 isAdmin = user_is_admin_helper();
969         }
970
971         return isAdmin;
972 }
973
974 ///////////////////////////////////////////////////////////////////////////////
975 // NETWORK STATE
976 ///////////////////////////////////////////////////////////////////////////////
977
978 int MUtils::OS::network_status(void)
979 {
980         DWORD dwFlags;
981         const BOOL ret = IsNetworkAlive(&dwFlags);
982         if(GetLastError() == 0)
983         {
984                 return (ret != FALSE) ? NETWORK_TYPE_YES : NETWORK_TYPE_NON;
985         }
986         return NETWORK_TYPE_ERR;
987 }
988
989 ///////////////////////////////////////////////////////////////////////////////
990 // MESSAGE HANDLER
991 ///////////////////////////////////////////////////////////////////////////////
992
993 bool MUtils::OS::handle_os_message(const void *const message, long *result)
994 {
995         const MSG *const msg = reinterpret_cast<const MSG*>(message);
996
997         switch(msg->message)
998         {
999         case WM_QUERYENDSESSION:
1000                 qWarning("WM_QUERYENDSESSION message received!");
1001                 *result = MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_QUERYENDSESSION, false) ? TRUE : FALSE;
1002                 return true;
1003         case WM_ENDSESSION:
1004                 qWarning("WM_ENDSESSION message received!");
1005                 if(msg->wParam == TRUE)
1006                 {
1007                         MUtils::GUI::broadcast(MUtils::GUI::USER_EVENT_ENDSESSION, false);
1008                         MUtils::GUI::force_quit();
1009                         exit(1);
1010                 }
1011                 *result = 0;
1012                 return true;
1013         default:
1014                 /*ignore this message and let Qt handle it*/
1015                 return false;
1016         }
1017 }
1018
1019 ///////////////////////////////////////////////////////////////////////////////
1020 // SLEEP
1021 ///////////////////////////////////////////////////////////////////////////////
1022
1023 void MUtils::OS::sleep_ms(const size_t &duration)
1024 {
1025         Sleep((DWORD) duration);
1026 }
1027
1028 ///////////////////////////////////////////////////////////////////////////////
1029 // EXECUTABLE CHECK
1030 ///////////////////////////////////////////////////////////////////////////////
1031
1032 static int g_library_as_image_resource_supported = -1;
1033 static QReadWriteLock g_library_as_image_resource_supported_lock;
1034
1035 static bool library_as_image_resource_supported()
1036 {
1037         QReadLocker readLocker(&g_library_as_image_resource_supported_lock);
1038         if (g_library_as_image_resource_supported >= 0)
1039         {
1040                 return (g_library_as_image_resource_supported > 0);
1041         }
1042
1043         readLocker.unlock();
1044         QWriteLocker writeLocker(&g_library_as_image_resource_supported_lock);
1045
1046         if (g_library_as_image_resource_supported < 0)
1047         {
1048                 g_library_as_image_resource_supported = 0;
1049                 OSVERSIONINFOEXW osvi;
1050                 if (rtl_get_version(&osvi))
1051                 {
1052                         if ((osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) && (osvi.dwMajorVersion >= 6U))
1053                         {
1054                                 g_library_as_image_resource_supported = 1;
1055                         }
1056                 }
1057         }
1058
1059         return (g_library_as_image_resource_supported > 0);
1060 }
1061
1062 bool MUtils::OS::is_executable_file(const QString &path)
1063 {
1064         DWORD binaryType;
1065         if(GetBinaryType(MUTILS_WCHR(QDir::toNativeSeparators(path)), &binaryType))
1066         {
1067                 return ((binaryType == SCS_32BIT_BINARY) || (binaryType == SCS_64BIT_BINARY));
1068         }
1069
1070         const DWORD errorCode = GetLastError();
1071         qWarning("GetBinaryType() failed with error: 0x%08X", errorCode);
1072         return false;
1073 }
1074
1075 bool MUtils::OS::is_library_file(const QString &path)
1076 {
1077         const DWORD flags = library_as_image_resource_supported() ? (LOAD_LIBRARY_AS_DATAFILE | LOAD_LIBRARY_AS_IMAGE_RESOURCE) : (LOAD_LIBRARY_AS_DATAFILE | DONT_RESOLVE_DLL_REFERENCES);
1078         if (const HMODULE hMod = LoadLibraryEx(MUTILS_WCHR(QDir::toNativeSeparators(path)), NULL, flags))
1079         {
1080                 FreeLibrary(hMod);
1081                 return true;
1082         }
1083
1084         const DWORD errorCode = GetLastError();
1085         qWarning("LoadLibraryEx() failed with error: 0x%08X", errorCode);
1086         return false;
1087 }
1088
1089 ///////////////////////////////////////////////////////////////////////////////
1090 // HIBERNATION / SHUTDOWN
1091 ///////////////////////////////////////////////////////////////////////////////
1092
1093 bool MUtils::OS::is_hibernation_supported(void)
1094 {
1095         bool hibernationSupported = false;
1096
1097         SYSTEM_POWER_CAPABILITIES pwrCaps;
1098         SecureZeroMemory(&pwrCaps, sizeof(SYSTEM_POWER_CAPABILITIES));
1099         
1100         if(GetPwrCapabilities(&pwrCaps))
1101         {
1102                 hibernationSupported = pwrCaps.SystemS4 && pwrCaps.HiberFilePresent;
1103         }
1104
1105         return hibernationSupported;
1106 }
1107
1108 bool MUtils::OS::shutdown_computer(const QString &message, const unsigned long timeout, const bool forceShutdown, const bool hibernate)
1109 {
1110         HANDLE hToken = NULL;
1111
1112         if(OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
1113         {
1114                 TOKEN_PRIVILEGES privileges;
1115                 memset(&privileges, 0, sizeof(TOKEN_PRIVILEGES));
1116                 privileges.PrivilegeCount = 1;
1117                 privileges.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
1118                 
1119                 if(LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &privileges.Privileges[0].Luid))
1120                 {
1121                         if(AdjustTokenPrivileges(hToken, FALSE, &privileges, NULL, NULL, NULL))
1122                         {
1123                                 if(hibernate)
1124                                 {
1125                                         if(SetSuspendState(TRUE, TRUE, TRUE))
1126                                         {
1127                                                 return true;
1128                                         }
1129                                 }
1130                                 const DWORD reason = SHTDN_REASON_MAJOR_APPLICATION | SHTDN_REASON_FLAG_PLANNED;
1131                                 return InitiateSystemShutdownEx(NULL, const_cast<wchar_t*>(MUTILS_WCHR(message)), timeout, forceShutdown ? TRUE : FALSE, FALSE, reason);
1132                         }
1133                 }
1134         }
1135         
1136         return false;
1137 }
1138
1139 ///////////////////////////////////////////////////////////////////////////////
1140 // FREE DISKSPACE
1141 ///////////////////////////////////////////////////////////////////////////////
1142
1143 bool MUtils::OS::free_diskspace(const QString &path, quint64 &freeSpace)
1144 {
1145         ULARGE_INTEGER freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes;
1146         if(GetDiskFreeSpaceExW(reinterpret_cast<const wchar_t*>(QDir::toNativeSeparators(path).utf16()), &freeBytesAvailable, &totalNumberOfBytes, &totalNumberOfFreeBytes))
1147         {
1148                 freeSpace = freeBytesAvailable.QuadPart;
1149                 return true;;
1150         }
1151
1152         freeSpace = -1;
1153         return false;
1154 }
1155
1156 ///////////////////////////////////////////////////////////////////////////////
1157 // SHELL OPEN
1158 ///////////////////////////////////////////////////////////////////////////////
1159
1160 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const QString &parameters, const QString &directory, const bool explore)
1161 {
1162         return ((int) ShellExecuteW((parent ? parent->winId() : NULL), (explore ? L"explore" : L"open"), MUTILS_WCHR(url), ((!parameters.isEmpty()) ? MUTILS_WCHR(parameters) : NULL), ((!directory.isEmpty()) ? MUTILS_WCHR(directory) : NULL), SW_SHOW)) > 32;
1163 }
1164
1165 bool MUtils::OS::shell_open(const QWidget *parent, const QString &url, const bool explore)
1166 {
1167         return shell_open(parent, url, QString(), QString(), explore);
1168 }
1169
1170 ///////////////////////////////////////////////////////////////////////////////
1171 // OPEN MEDIA FILE
1172 ///////////////////////////////////////////////////////////////////////////////
1173
1174 bool MUtils::OS::open_media_file(const QString &mediaFilePath)
1175 {
1176         const static wchar_t *registryPrefix[2] = { L"SOFTWARE\\", L"SOFTWARE\\Wow6432Node\\" };
1177         const static wchar_t *registryKeys[3] = 
1178         {
1179                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{97D341C8-B0D1-4E4A-A49A-C30B52F168E9}",
1180                 L"Microsoft\\Windows\\CurrentVersion\\Uninstall\\{DB9E4EAB-2717-499F-8D56-4CC8A644AB60}",
1181                 L"foobar2000"
1182         };
1183         const static wchar_t *appNames[4] = { L"smplayer_portable.exe", L"smplayer.exe", L"MPUI.exe", L"foobar2000.exe" };
1184         const static wchar_t *valueNames[2] = { L"InstallLocation", L"InstallDir" };
1185
1186         for(size_t i = 0; i < 3; i++)
1187         {
1188                 for(size_t j = 0; j < 2; j++)
1189                 {
1190                         QString mplayerPath;
1191                         HKEY registryKeyHandle = NULL;
1192
1193                         const QString currentKey = MUTILS_QSTR(registryPrefix[j]).append(MUTILS_QSTR(registryKeys[i]));
1194                         if(RegOpenKeyExW(HKEY_LOCAL_MACHINE, MUTILS_WCHR(currentKey), 0, KEY_READ, &registryKeyHandle) == ERROR_SUCCESS)
1195                         {
1196                                 for(size_t k = 0; k < 2; k++)
1197                                 {
1198                                         wchar_t Buffer[4096];
1199                                         DWORD BuffSize = sizeof(wchar_t*) * 4096;
1200                                         DWORD DataType = REG_NONE;
1201                                         if(RegQueryValueExW(registryKeyHandle, valueNames[k], 0, &DataType, reinterpret_cast<BYTE*>(Buffer), &BuffSize) == ERROR_SUCCESS)
1202                                         {
1203                                                 if((DataType == REG_SZ) || (DataType == REG_EXPAND_SZ) || (DataType == REG_LINK))
1204                                                 {
1205                                                         mplayerPath = MUTILS_QSTR(Buffer);
1206                                                         break;
1207                                                 }
1208                                         }
1209                                 }
1210                                 RegCloseKey(registryKeyHandle);
1211                         }
1212
1213                         if(!mplayerPath.isEmpty())
1214                         {
1215                                 QDir mplayerDir(mplayerPath);
1216                                 if(mplayerDir.exists())
1217                                 {
1218                                         for(size_t k = 0; k < 4; k++)
1219                                         {
1220                                                 if(mplayerDir.exists(MUTILS_QSTR(appNames[k])))
1221                                                 {
1222                                                         qDebug("Player found at:\n%s\n", MUTILS_UTF8(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k]))));
1223                                                         QProcess::startDetached(mplayerDir.absoluteFilePath(MUTILS_QSTR(appNames[k])), QStringList() << QDir::toNativeSeparators(mediaFilePath));
1224                                                         return true;
1225                                                 }
1226                                         }
1227                                 }
1228                         }
1229                 }
1230         }
1231         return false;
1232 }
1233
1234 ///////////////////////////////////////////////////////////////////////////////
1235 // DEBUGGER CHECK
1236 ///////////////////////////////////////////////////////////////////////////////
1237
1238 static bool change_process_priority_helper(const HANDLE hProcess, const int priority)
1239 {
1240         bool ok = false;
1241
1242         switch(qBound(-2, priority, 2))
1243         {
1244         case 2:
1245                 ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1246                 break;
1247         case 1:
1248                 if(!(ok = (SetPriorityClass(hProcess, ABOVE_NORMAL_PRIORITY_CLASS) == TRUE)))
1249                 {
1250                         ok = (SetPriorityClass(hProcess, HIGH_PRIORITY_CLASS) == TRUE);
1251                 }
1252                 break;
1253         case 0:
1254                 ok = (SetPriorityClass(hProcess, NORMAL_PRIORITY_CLASS) == TRUE);
1255                 break;
1256         case -1:
1257                 if(!(ok = (SetPriorityClass(hProcess, BELOW_NORMAL_PRIORITY_CLASS) == TRUE)))
1258                 {
1259                         ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1260                 }
1261                 break;
1262         case -2:
1263                 ok = (SetPriorityClass(hProcess, IDLE_PRIORITY_CLASS) == TRUE);
1264                 break;
1265         }
1266
1267         return ok;
1268 }
1269
1270 bool MUtils::OS::change_process_priority(const int priority)
1271 {
1272         return change_process_priority_helper(GetCurrentProcess(), priority);
1273 }
1274
1275 bool MUtils::OS::change_process_priority(const QProcess *proc, const int priority)
1276 {
1277         if(Q_PID qPid = proc->pid())
1278         {
1279                 return change_process_priority_helper(qPid->hProcess, priority);
1280         }
1281         else
1282         {
1283                 return false;
1284         }
1285 }
1286
1287 ///////////////////////////////////////////////////////////////////////////////
1288 // PROCESS ID
1289 ///////////////////////////////////////////////////////////////////////////////
1290
1291 quint32 MUtils::OS::process_id(const QProcess *const proc)
1292 {
1293         PROCESS_INFORMATION *procInf = proc->pid();
1294         return (procInf) ? procInf->dwProcessId : NULL;
1295 }
1296
1297 ///////////////////////////////////////////////////////////////////////////////
1298 // PROCESS SUSPEND/RESUME
1299 ///////////////////////////////////////////////////////////////////////////////
1300
1301 bool MUtils::OS::suspend_process(const QProcess *proc, const bool suspend)
1302 {
1303         if(Q_PID pid = proc->pid())
1304         {
1305                 if(suspend)
1306                 {
1307                         return (SuspendThread(pid->hThread) != ((DWORD) -1));
1308                 }
1309                 else
1310                 {
1311                         return (ResumeThread(pid->hThread)  != ((DWORD) -1));
1312                 }
1313         }
1314         else
1315         {
1316                 return false;
1317         }
1318 }
1319
1320 ///////////////////////////////////////////////////////////////////////////////
1321 // SYSTEM TIMER
1322 ///////////////////////////////////////////////////////////////////////////////
1323
1324 bool MUtils::OS::setup_timer_resolution(const quint32 &interval)
1325 {
1326         return timeBeginPeriod(interval) == TIMERR_NOERROR;
1327 }
1328
1329 bool MUtils::OS::reset_timer_resolution(const quint32 &interval)
1330 {
1331         return timeEndPeriod(interval) == TIMERR_NOERROR;
1332 }
1333
1334 ///////////////////////////////////////////////////////////////////////////////
1335 // SET FILE TIME
1336 ///////////////////////////////////////////////////////////////////////////////
1337
1338 static QScopedPointer<QDateTime> s_epoch;
1339 static QReadWriteLock            s_epochLock;
1340
1341 static const QDateTime *get_epoch(void)
1342 {
1343         QReadLocker rdLock(&s_epochLock);
1344
1345         if (s_epoch.isNull())
1346         {
1347                 rdLock.unlock();
1348                 QWriteLocker wrLock(&s_epochLock);
1349                 if (s_epoch.isNull())
1350                 {
1351                         s_epoch.reset(new QDateTime(QDate(1601, 1, 1), QTime(0, 0, 0, 0), Qt::UTC));
1352                 }
1353                 wrLock.unlock();
1354                 rdLock.relock();
1355         }
1356
1357         return s_epoch.data();
1358 }
1359
1360 static FILETIME *qt_time_to_file_time(FILETIME *const fileTime, const QDateTime &dateTime)
1361 {
1362         memset(fileTime, 0, sizeof(FILETIME));
1363
1364         if (const QDateTime *const epoch = get_epoch())
1365         {
1366                 const qint64 msecs = epoch->msecsTo(dateTime);
1367                 if (msecs > 0)
1368                 {
1369                         const quint64 ticks = 10000U * quint64(msecs);
1370                         fileTime->dwHighDateTime = ((ticks >> 32) & 0xFFFFFFFF);
1371                         fileTime->dwLowDateTime = (ticks & 0xFFFFFFFF);
1372                         return fileTime;
1373                 }
1374         }
1375
1376         return NULL;
1377 }
1378
1379 static bool set_file_time(const HANDLE hFile, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1380 {
1381         FILETIME ftCreated, ftLastMod, ftLastAcc;
1382
1383         FILETIME *const pCreated = created.isValid() ? qt_time_to_file_time(&ftCreated, created) : NULL;
1384         FILETIME *const pLastMod = lastMod.isValid() ? qt_time_to_file_time(&ftLastMod, lastMod) : NULL;
1385         FILETIME *const pLastAcc = lastAcc.isValid() ? qt_time_to_file_time(&ftLastAcc, lastAcc) : NULL;
1386
1387         if (pCreated || pLastMod || pLastAcc)
1388         {
1389                 return (SetFileTime(hFile, pCreated, pLastAcc, pLastMod) != FALSE);
1390         }
1391
1392         return false;
1393 }
1394
1395 bool MUtils::OS::set_file_time(const QFile &file, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1396 {
1397         const int fd = file.handle();
1398         if (fd >= 0)
1399         {
1400                 return set_file_time((HANDLE)_get_osfhandle(fd), created, lastMod, lastAcc);
1401         }
1402         return false;
1403 }
1404
1405 bool MUtils::OS::set_file_time(const QString &path, const QDateTime &created, const QDateTime &lastMod, const QDateTime &lastAcc)
1406 {
1407         const HANDLE hFile = CreateFileW(MUTILS_WCHR(path), FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
1408         bool okay = false;
1409         if ((hFile != NULL) && (hFile != INVALID_HANDLE_VALUE))
1410         {
1411                 okay = set_file_time(hFile, created, lastMod, lastAcc);
1412                 CloseHandle(hFile);
1413         }
1414         return okay;
1415 }
1416
1417 ///////////////////////////////////////////////////////////////////////////////
1418 // CHECK KEY STATE
1419 ///////////////////////////////////////////////////////////////////////////////
1420
1421 bool MUtils::OS::check_key_state_esc(void)
1422 {
1423         return (GetAsyncKeyState(VK_ESCAPE) & 0x0001) != 0;
1424 }
1425
1426 ///////////////////////////////////////////////////////////////////////////////
1427 // SHELL CHANGE NOTIFICATION
1428 ///////////////////////////////////////////////////////////////////////////////
1429
1430 void MUtils::OS::shell_change_notification(void)
1431 {
1432         SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, NULL, NULL);
1433 }
1434
1435 ///////////////////////////////////////////////////////////////////////////////
1436 // WOW64 REDIRECTION
1437 ///////////////////////////////////////////////////////////////////////////////
1438
1439 typedef BOOL (_stdcall *Wow64DisableWow64FsRedirectionFun)(void *OldValue);
1440 typedef BOOL (_stdcall *Wow64RevertWow64FsRedirectionFun )(void *OldValue);
1441
1442 bool MUtils::OS::wow64fsredir_disable(void *oldValue)
1443 {
1444         const Wow64DisableWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64DisableWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64DisableWow64FsRedirection"));
1445         if(wow64redir_disable)
1446         {
1447                 if (wow64redir_disable(oldValue))
1448                 {
1449                         return true;
1450                 }
1451         }
1452         return false;
1453 }
1454
1455 bool MUtils::OS::wow64fsredir_revert(void *oldValue)
1456 {
1457         const Wow64RevertWow64FsRedirectionFun wow64redir_disable = MUtils::Win32Utils::resolve<Wow64RevertWow64FsRedirectionFun>(QLatin1String("kernel32"), QLatin1String("Wow64RevertWow64FsRedirection"));
1458         if (wow64redir_disable)
1459         {
1460                 if (wow64redir_disable(oldValue))
1461                 {
1462                         return true;
1463                 }
1464         }
1465         return false;
1466 }
1467
1468 ///////////////////////////////////////////////////////////////////////////////
1469 // DEBUGGER CHECK
1470 ///////////////////////////////////////////////////////////////////////////////
1471
1472 #if (!(MUTILS_DEBUG))
1473 static __forceinline bool is_debugger_present(void)
1474 {
1475         __try
1476         {
1477                 CloseHandle((HANDLE)((DWORD_PTR)-3));
1478         }
1479         __except(1)
1480         {
1481                 return true;
1482         }
1483
1484         BOOL bHaveDebugger = FALSE;
1485         if(CheckRemoteDebuggerPresent(GetCurrentProcess(), &bHaveDebugger))
1486         {
1487                 if(bHaveDebugger) return true;
1488         }
1489
1490         return IsDebuggerPresent();
1491 }
1492 static __forceinline bool check_debugger_helper(void)
1493 {
1494         if(is_debugger_present())
1495         {
1496                 MUtils::OS::fatal_exit(L"Not a debug build. Please unload debugger and try again!");
1497                 return true;
1498         }
1499         return false;
1500 }
1501 #else
1502 #define check_debugger_helper() (false)
1503 #endif
1504
1505 void MUtils::OS::check_debugger(void)
1506 {
1507         check_debugger_helper();
1508 }
1509
1510 static volatile bool g_debug_check = check_debugger_helper();
1511
1512 ///////////////////////////////////////////////////////////////////////////////
1513 // FATAL EXIT
1514 ///////////////////////////////////////////////////////////////////////////////
1515
1516 static MUtils::Internal::CriticalSection g_fatal_exit_lock;
1517 static volatile bool g_fatal_exit_flag = true;
1518
1519 static DWORD WINAPI fatal_exit_helper(LPVOID lpParameter)
1520 {
1521         MUtils::OS::system_message_err(L"GURU MEDITATION", (LPWSTR) lpParameter);
1522         return 0;
1523 }
1524
1525 void MUtils::OS::fatal_exit(const wchar_t* const errorMessage)
1526 {
1527         g_fatal_exit_lock.enter();
1528         
1529         if(!g_fatal_exit_flag)
1530         {
1531                 return; /*prevent recursive invocation*/
1532         }
1533
1534         g_fatal_exit_flag = false;
1535
1536         if(g_main_thread_id != GetCurrentThreadId())
1537         {
1538                 if(HANDLE hThreadMain = OpenThread(THREAD_SUSPEND_RESUME, FALSE, g_main_thread_id))
1539                 {
1540                         SuspendThread(hThreadMain); /*stop main thread*/
1541                 }
1542         }
1543
1544         if(HANDLE hThread = CreateThread(NULL, 0, fatal_exit_helper, (LPVOID) errorMessage, 0, NULL))
1545         {
1546                 WaitForSingleObject(hThread, INFINITE);
1547         }
1548
1549         for(;;)
1550         {
1551                 TerminateProcess(GetCurrentProcess(), 666);
1552         }
1553 }
1554
1555 ///////////////////////////////////////////////////////////////////////////////