# crashlog_win.cpp

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    00001 /* $Id$ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "../../stdafx.h"
    00013 #include "../../crashlog.h"
    00014 #include "win32.h"
    00015 #include "../../core/alloc_func.hpp"
    00016 #include "../../core/math_func.hpp"
    00017 #include "../../string_func.h"
    00018 #include "../../fileio_func.h"
    00019 #include "../../strings_func.h"
    00020 #include "../../gamelog.h"
    00021
    00022 #include <windows.h>
    00023 #include <signal.h>
    00024
    00028 class CrashLogWindows : public CrashLog {
    00030   EXCEPTION_POINTERS *ep;
    00031
    00032   /* virtual */ char *LogOSVersion(char *buffer, const char *last) const;
    00033   /* virtual */ char *LogError(char *buffer, const char *last, const char *message) const;
    00034   /* virtual */ char *LogStacktrace(char *buffer, const char *last) const;
    00035   /* virtual */ char *LogRegisters(char *buffer, const char *last) const;
    00036   /* virtual */ char *LogModules(char *buffer, const char *last) const;
    00037 public:
    00038 #if defined(_MSC_VER)
    00039   /* virtual */ int WriteCrashDump(char *filename, const char *filename_last) const;
    00040 #endif /* _MSC_VER */
    00041
    00043   char crashlog[65536];
    00045   char crashlog_filename[MAX_PATH];
    00047   char crashdump_filename[MAX_PATH];
    00049   char screenshot_filename[MAX_PATH];
    00050
    00055   CrashLogWindows(EXCEPTION_POINTERS *ep = NULL) :
    00056     ep(ep)
    00057   {
    00058     this->crashlog[0] = '\0';
    00059     this->crashlog_filename[0] = '\0';
    00060     this->crashdump_filename[0] = '\0';
    00061     this->screenshot_filename[0] = '\0';
    00062   }
    00063
    00067   static CrashLogWindows *current;
    00068 };
    00069
    00070 /* static */ CrashLogWindows *CrashLogWindows::current = NULL;
    00071
    00072 /* virtual */ char *CrashLogWindows::LogOSVersion(char *buffer, const char *last) const
    00073 {
    00074   _OSVERSIONINFOA os;
    00075   os.dwOSVersionInfoSize = sizeof(os);
    00076   GetVersionExA(&os);
    00077
    00078   return buffer + seprintf(buffer, last,
    00079       "Operating system:\n"
    00080       " Name:    Windows\n"
    00081       " Release: %d.%d.%d (%s)\n"
    00082       " MSVC:    %s\n\n",
    00083       (int)os.dwMajorVersion,
    00084       (int)os.dwMinorVersion,
    00085       (int)os.dwBuildNumber,
    00086       os.szCSDVersion,
    00087 #if defined(_MSC_VER)
    00088       "Yes"
    00089 #else
    00090       "No"
    00091 #endif
    00092   );
    00093
    00094 }
    00095
    00096 /* virtual */ char *CrashLogWindows::LogError(char *buffer, const char *last, const char *message) const
    00097 {
    00098   return buffer + seprintf(buffer, last,
    00099       "Crash reason:\n"
    00100       " Exception: %.8X\n"
    00101 #ifdef _M_AMD64
    00102       " Location:  %.16IX\n"
    00103 #else
    00104       " Location:  %.8X\n"
    00105 #endif
    00106       " Message:   %s\n\n",
    00107       (int)ep->ExceptionRecord->ExceptionCode,
    00108       (size_t)ep->ExceptionRecord->ExceptionAddress,
    00109       message == NULL ? "<none>" : message
    00110   );
    00111 }
    00112
    00113 struct DebugFileInfo {
    00114   uint32 size;
    00115   uint32 crc32;
    00116   SYSTEMTIME file_time;
    00117 };
    00118
    00119 static uint32 *_crc_table;
    00120
    00121 static void MakeCRCTable(uint32 *table)
    00122 {
    00123   uint32 crc, poly = 0xEDB88320L;
    00124   int i;
    00125   int j;
    00126
    00127   _crc_table = table;
    00128
    00129   for (i = 0; i != 256; i++) {
    00130     crc = i;
    00131     for (j = 8; j != 0; j--) {
    00132       crc = (crc & 1 ? (crc >> 1) ^ poly : crc >> 1);
    00133     }
    00134     table[i] = crc;
    00135   }
    00136 }
    00137
    00138 static uint32 CalcCRC(byte *data, uint size, uint32 crc)
    00139 {
    00140   for (; size > 0; size--) {
    00141     crc = ((crc >> 8) & 0x00FFFFFF) ^ _crc_table[(crc ^ *data++) & 0xFF];
    00142   }
    00143   return crc;
    00144 }
    00145
    00146 static void GetFileInfo(DebugFileInfo *dfi, const TCHAR *filename)
    00147 {
    00148   HANDLE file;
    00149   memset(dfi, 0, sizeof(*dfi));
    00150
    00151   file = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
    00152   if (file != INVALID_HANDLE_VALUE) {
    00153     byte buffer[1024];
    00154     DWORD numread;
    00155     uint32 filesize = 0;
    00156     FILETIME write_time;
    00157     uint32 crc = (uint32)-1;
    00158
    00159     for (;;) {
    00160       if (ReadFile(file, buffer, sizeof(buffer), &numread, NULL) == 0 || numread == 0)
    00161         break;
    00162       filesize += numread;
    00163       crc = CalcCRC(buffer, numread, crc);
    00164     }
    00165     dfi->size = filesize;
    00166     dfi->crc32 = crc ^ (uint32)-1;
    00167
    00168     if (GetFileTime(file, NULL, NULL, &write_time)) {
    00169       FileTimeToSystemTime(&write_time, &dfi->file_time);
    00170     }
    00171     CloseHandle(file);
    00172   }
    00173 }
    00174
    00175
    00176 static char *PrintModuleInfo(char *output, const char *last, HMODULE mod)
    00177 {
    00178   TCHAR buffer[MAX_PATH];
    00179   DebugFileInfo dfi;
    00180
    00181   GetModuleFileName(mod, buffer, MAX_PATH);
    00182   GetFileInfo(&dfi, buffer);
    00183   output += seprintf(output, last, " %-20s handle: %p size: %d crc: %.8X date: %d-%.2d-%.2d %.2d:%.2d:%.2d\n",
    00184     WIDE_TO_MB(buffer),
    00185     mod,
    00186     dfi.size,
    00187     dfi.crc32,
    00188     dfi.file_time.wYear,
    00189     dfi.file_time.wMonth,
    00190     dfi.file_time.wDay,
    00191     dfi.file_time.wHour,
    00192     dfi.file_time.wMinute,
    00193     dfi.file_time.wSecond
    00194   );
    00195   return output;
    00196 }
    00197
    00198 /* virtual */ char *CrashLogWindows::LogModules(char *output, const char *last) const
    00199 {
    00200   MakeCRCTable(AllocaM(uint32, 256));
    00201   BOOL (WINAPI *EnumProcessModules)(HANDLE, HMODULE*, DWORD, LPDWORD);
    00202
    00203   output += seprintf(output, last, "Module information:\n");
    00204
    00205   if (LoadLibraryList((Function*)&EnumProcessModules, "psapi.dll\0EnumProcessModules\0\0")) {
    00206     HMODULE modules[100];
    00207     DWORD needed;
    00208     BOOL res;
    00209
    00210     HANDLE proc = OpenProcess(PROCESS_ALL_ACCESS, FALSE, GetCurrentProcessId());
    00211     if (proc != NULL) {
    00212       res = EnumProcessModules(proc, modules, sizeof(modules), &needed);
    00213       CloseHandle(proc);
    00214       if (res) {
    00215         size_t count = min(needed / sizeof(HMODULE), lengthof(modules));
    00216
    00217         for (size_t i = 0; i != count; i++) output = PrintModuleInfo(output, last, modules[i]);
    00218         return output + seprintf(output, last, "\n");
    00219       }
    00220     }
    00221   }
    00222   output = PrintModuleInfo(output, last, NULL);
    00223   return output + seprintf(output, last, "\n");
    00224 }
    00225
    00226 /* virtual */ char *CrashLogWindows::LogRegisters(char *buffer, const char *last) const
    00227 {
    00228   buffer += seprintf(buffer, last, "Registers:\n");
    00229 #ifdef _M_AMD64
    00230   buffer += seprintf(buffer, last,
    00231     " RAX: %.16llX RBX: %.16llX RCX: %.16llX RDX: %.16llX\n"
    00232     " RSI: %.16llX RDI: %.16llX RBP: %.16llX RSP: %.16llX\n"
    00233     " R8:  %.16llX R9:  %.16llX R10: %.16llX R11: %.16llX\n"
    00234     " R12: %.16llX R13: %.16llX R14: %.16llX R15: %.16llX\n"
    00235     " RIP: %.16llX EFLAGS: %.8X\n",
    00236     ep->ContextRecord->Rax,
    00237     ep->ContextRecord->Rbx,
    00238     ep->ContextRecord->Rcx,
    00239     ep->ContextRecord->Rdx,
    00240     ep->ContextRecord->Rsi,
    00241     ep->ContextRecord->Rdi,
    00242     ep->ContextRecord->Rbp,
    00243     ep->ContextRecord->Rsp,
    00244     ep->ContextRecord->R8,
    00245     ep->ContextRecord->R9,
    00246     ep->ContextRecord->R10,
    00247     ep->ContextRecord->R11,
    00248     ep->ContextRecord->R12,
    00249     ep->ContextRecord->R13,
    00250     ep->ContextRecord->R14,
    00251     ep->ContextRecord->R15,
    00252     ep->ContextRecord->Rip,
    00253     ep->ContextRecord->EFlags
    00254   );
    00255 #else
    00256   buffer += seprintf(buffer, last,
    00257     " EAX: %.8X EBX: %.8X ECX: %.8X EDX: %.8X\n"
    00258     " ESI: %.8X EDI: %.8X EBP: %.8X ESP: %.8X\n"
    00259     " EIP: %.8X EFLAGS: %.8X\n",
    00260     (int)ep->ContextRecord->Eax,
    00261     (int)ep->ContextRecord->Ebx,
    00262     (int)ep->ContextRecord->Ecx,
    00263     (int)ep->ContextRecord->Edx,
    00264     (int)ep->ContextRecord->Esi,
    00265     (int)ep->ContextRecord->Edi,
    00266     (int)ep->ContextRecord->Ebp,
    00267     (int)ep->ContextRecord->Esp,
    00268     (int)ep->ContextRecord->Eip,
    00269     (int)ep->ContextRecord->EFlags
    00270   );
    00271 #endif
    00272
    00273   buffer += seprintf(buffer, last, "\n Bytes at instruction pointer:\n");
    00274 #ifdef _M_AMD64
    00275   byte *b = (byte*)ep->ContextRecord->Rip;
    00276 #else
    00277   byte *b = (byte*)ep->ContextRecord->Eip;
    00278 #endif
    00279   for (int i = 0; i != 24; i++) {
    00280     if (IsBadReadPtr(b, 1)) {
    00281       buffer += seprintf(buffer, last, " ??"); // OCR: WAS: , 0);
    00282     } else {
    00283       buffer += seprintf(buffer, last, " %.2X", *b);
    00284     }
    00285     b++;
    00286   }
    00287   return buffer + seprintf(buffer, last, "\n\n");
    00288 }
    00289
    00290 /* virtual */ char *CrashLogWindows::LogStacktrace(char *buffer, const char *last) const
    00291 {
    00292   buffer += seprintf(buffer, last, "Stack trace:\n");
    00293 #ifdef _M_AMD64
    00294   uint32 *b = (uint32*)ep->ContextRecord->Rsp;
    00295 #else
    00296   uint32 *b = (uint32*)ep->ContextRecord->Esp;
    00297 #endif
    00298   for (int j = 0; j != 24; j++) {
    00299     for (int i = 0; i != 8; i++) {
    00300       if (IsBadReadPtr(b, sizeof(uint32))) {
    00301         buffer += seprintf(buffer, last, " ????????"); // OCR: WAS - , 0);
    00302       } else {
    00303         buffer += seprintf(buffer, last, " %.8X", *b);
    00304       }
    00305       b++;
    00306     }
    00307     buffer += seprintf(buffer, last, "\n");
    00308   }
    00309   return buffer + seprintf(buffer, last, "\n");
    00310 }
    00311
    00312 #if defined(_MSC_VER)
    00313 #include <dbghelp.h>
    00314
    00315 /* virtual */ int CrashLogWindows::WriteCrashDump(char *filename, const char *filename_last) const
    00316 {
    00317   int ret = 0;
    00318   HMODULE dbghelp = LoadLibrary(_T("dbghelp.dll"));
    00319   if (dbghelp != NULL) {
    00320     typedef BOOL (WINAPI *MiniDumpWriteDump_t)(HANDLE, DWORD, HANDLE,
    00321         MINIDUMP_TYPE,
    00322         CONST PMINIDUMP_EXCEPTION_INFORMATION,
    00323         CONST PMINIDUMP_USER_STREAM_INFORMATION,
    00324         CONST PMINIDUMP_CALLBACK_INFORMATION);
    00325     MiniDumpWriteDump_t funcMiniDumpWriteDump = (MiniDumpWriteDump_t)GetProcAddress(dbghelp, "MiniDumpWriteDump");
    00326     if (funcMiniDumpWriteDump != NULL) {
    00327       seprintf(filename, filename_last, "%scrash.dmp", _personal_dir);
    00328       HANDLE file  = CreateFile(OTTD2FS(filename), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, 0);
    00329       HANDLE proc  = GetCurrentProcess();
    00330       DWORD procid = GetCurrentProcessId();
    00331       MINIDUMP_EXCEPTION_INFORMATION mdei;
    00332       MINIDUMP_USER_STREAM userstream;
    00333       MINIDUMP_USER_STREAM_INFORMATION musi;
    00334
    00335       userstream.Type        = LastReservedStream + 1;
    00336       userstream.Buffer      = (void*)this->crashlog;
    00337       userstream.BufferSize  = (ULONG)strlen(this->crashlog) + 1;
    00338
    00339       musi.UserStreamCount   = 1;
    00340       musi.UserStreamArray   = &userstream;
    00341
    00342       mdei.ThreadId = GetCurrentThreadId();
    00343       mdei.ExceptionPointers  = ep;
    00344       mdei.ClientPointers     = false;
    00345
    00346       funcMiniDumpWriteDump(proc, procid, file, MiniDumpWithDataSegs, &mdei, &musi, NULL);
    00347       ret = 1;
    00348     } else {
    00349       ret = -1;
    00350     }
    00351     FreeLibrary(dbghelp);
    00352   }
    00353   return ret;
    00354 }
    00355 #endif /* _MSC_VER */
    00356
    00357 extern bool CloseConsoleLogIfActive();
    00358 static void ShowCrashlogWindow();
    00359
    00364 void *_safe_esp = NULL;
    00365
    00366 static LONG WINAPI ExceptionHandler(EXCEPTION_POINTERS *ep)
    00367 {
    00368   if (CrashLogWindows::current != NULL) {
    00369     CrashLog::AfterCrashLogCleanup();
    00370     ExitProcess(2);
    00371   }
    00372
    00373   if (GamelogTestEmergency()) {
    00374     static const TCHAR _emergency_crash[] =
    00375       _T("A serious fault condition occured in the game. The game will shut down.\n")
    00376       _T("As you loaded an emergency savegame no crash information will be generated.\n");
    00377     MessageBox(NULL, _emergency_crash, _T("Fatal Application Failure"), MB_ICONERROR);
    00378     ExitProcess(3);
    00379   }
    00380
    00381   CrashLogWindows *log = new CrashLogWindows(ep);
    00382   CrashLogWindows::current = log;
    00383   log->FillCrashLog(log->crashlog, lastof(log->crashlog));
    00384   log->WriteCrashLog(log->crashlog, log->crashlog_filename, lastof(log->crashlog_filename));
    00385   log->WriteCrashDump(log->crashdump_filename, lastof(log->crashdump_filename));
    00386   log->WriteScreenshot(log->screenshot_filename, lastof(log->screenshot_filename));
    00387
    00388   /* Close any possible log files */
    00389   CloseConsoleLogIfActive();
    00390
    00391   if (_safe_esp) {
    00392 #ifdef _M_AMD64
    00393     ep->ContextRecord->Rip = (DWORD64)ShowCrashlogWindow;
    00394     ep->ContextRecord->Rsp = (DWORD64)_safe_esp;
    00395 #else
    00396     ep->ContextRecord->Eip = (DWORD)ShowCrashlogWindow;
    00397     ep->ContextRecord->Esp = (DWORD)_safe_esp;
    00398 #endif
    00399     return EXCEPTION_CONTINUE_EXECUTION;
    00400   }
    00401
    00402   CrashLog::AfterCrashLogCleanup();
    00403   return EXCEPTION_EXECUTE_HANDLER;
    00404 }
    00405
    00406 #ifdef _M_AMD64
    00407 extern "C" void *_get_safe_esp();
    00408 #endif
    00409
    00410 static void CDECL CustomAbort(int signal)
    00411 {
    00412   RaiseException(0xE1212012, 0, 0, NULL);
    00413 }
    00414
    00415 /* static */ void CrashLog::InitialiseCrashLog()
    00416 {
    00417 #if defined(_MSC_VER)
    00418 #ifdef _M_AMD64
    00419   _safe_esp = _get_safe_esp();
    00420 #else
    00421   _asm {
    00422     mov _safe_esp, esp
    00423   }
    00424 #endif
    00425 #else
    00426   asm("movl %esp, __safe_esp");
    00427 #endif
    00428
    00429   /* SIGABRT is not an unhandled exception, so we need to intercept it. */
    00430   signal(SIGABRT, CustomAbort);
    00431 #if defined(_MSC_VER)
    00432   /* Don't show abort message as we will get the crashlog window anyway. */
    00433   _set_abort_behavior(0, _WRITE_ABORT_MSG);
    00434 #endif
    00435   SetUnhandledExceptionFilter(ExceptionHandler);
    00436 }
    00437
    00438 /* The crash log GUI */
    00439
    00440 static bool _expanded;
    00441
    00442 static const TCHAR _crash_desc[] =
    00443   _T("A serious fault condition occured in the game. The game will shut down.\n")
    00444   _T("Please send the crash information and the crash.dmp file (if any) to the developers.\n")
    00445   _T("This will greatly help debugging. The correct place to do this is http://bugs.openttd.org. ")
    00446   _T("The information contained in the report is displayed below.\n")
    00447   _T("Press \"Emergency save\" to attempt saving the game. Generated file(s):\n")
    00448   _T("%s");
    00449
    00450 static const TCHAR _save_succeeded[] =
    00451   _T("Emergency save succeeded.\nIts location is '%s'.\n")
    00452   _T("Be aware that critical parts of the internal game state may have become ")
    00453   _T("corrupted. The saved game is not guaranteed to work.");
    00454
    00455 static const TCHAR * const _expand_texts[] = {_T("S&how report >>"), _T("&Hide report <<") };
    00456
    00457 static void SetWndSize(HWND wnd, int mode)
    00458 {
    00459   RECT r, r2;
    00460
    00461   GetWindowRect(wnd, &r);
    00462   SetDlgItemText(wnd, 15, _expand_texts[mode == 1]);
    00463
    00464   if (mode >= 0) {
    00465     GetWindowRect(GetDlgItem(wnd, 11), &r2);
    00466     int offs = r2.bottom - r2.top + 10;
    00467     if (!mode) offs = -offs;
    00468     SetWindowPos(wnd, HWND_TOPMOST, 0, 0,
    00469       r.right - r.left, r.bottom - r.top + offs, SWP_NOMOVE | SWP_NOZORDER);
    00470   } else {
    00471     SetWindowPos(wnd, HWND_TOPMOST,
    00472       (GetSystemMetrics(SM_CXSCREEN) - (r.right - r.left)) / 2,
    00473       (GetSystemMetrics(SM_CYSCREEN) - (r.bottom - r.top)) / 2,
    00474       0, 0, SWP_NOSIZE);
    00475   }
    00476 }
    00477
    00478 static INT_PTR CALLBACK CrashDialogFunc(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam)
    00479 {
    00480   switch (msg) {
    00481     case WM_INITDIALOG: {
    00482 #if defined(UNICODE)
    00483       /* We need to put the crash-log in a seperate buffer because the default
    00484        * buffer in MB_TO_WIDE is not large enough (512 chars) */
    00485       wchar_t crash_msgW[lengthof(CrashLogWindows::current->crashlog)];
    00486 #endif
    00487       /* Convert unix -> dos newlines because the edit box only supports that properly :( */
    00488       const char *unix_nl = CrashLogWindows::current->crashlog;
    00489       char dos_nl[lengthof(CrashLogWindows::current->crashlog)];
    00490       char *p = dos_nl;
    00491       WChar c;
    00492       while ((c = Utf8Consume(&unix_nl)) && p < lastof(dos_nl) - 4) { // 4 is max number of bytes per character
    00493         if (c == '\n') p += Utf8Encode(p, '\r');
    00494         p += Utf8Encode(p, c);
    00495       }
    00496       *p = '\0';
    00497
    00498       /* Add path to crash.log and crash.dmp (if any) to the crash window text */
    00499       size_t len = _tcslen(_crash_desc) + 2;
    00500       len += _tcslen(OTTD2FS(CrashLogWindows::current->crashlog_filename)) + 2;
    00501       len += _tcslen(OTTD2FS(CrashLogWindows::current->crashdump_filename)) + 2;
    00502       len += _tcslen(OTTD2FS(CrashLogWindows::current->screenshot_filename)) + 1;
    00503
    00504       TCHAR *text = AllocaM(TCHAR, len);
    00505       _sntprintf(text, len, _crash_desc, OTTD2FS(CrashLogWindows::current->crashlog_filename));
    00506       if (OTTD2FS(CrashLogWindows::current->crashdump_filename)[0] != _T('\0')) {
    00507         _tcscat(text, _T("\n"));
    00508         _tcscat(text, OTTD2FS(CrashLogWindows::current->crashdump_filename));
    00509       }
    00510       if (OTTD2FS(CrashLogWindows::current->screenshot_filename)[0] != _T('\0')) {
    00511         _tcscat(text, _T("\n"));
    00512         _tcscat(text, OTTD2FS(CrashLogWindows::current->screenshot_filename));
    00513       }
    00514
    00515       SetDlgItemText(wnd, 10, text);
    00516       SetDlgItemText(wnd, 11, MB_TO_WIDE_BUFFER(dos_nl, crash_msgW, lengthof(crash_msgW)));
    00517       SendDlgItemMessage(wnd, 11, WM_SETFONT, (WPARAM)GetStockObject(ANSI_FIXED_FONT), FALSE);
    00518       SetWndSize(wnd, -1);
    00519     } return TRUE;
    00520     case WM_COMMAND:
    00521       switch (wParam) {
    00522         case 12: // Close
    00523           CrashLog::AfterCrashLogCleanup();
    00524           ExitProcess(2);
    00525         case 13: // Emergency save
    00526           char filename[MAX_PATH];
    00527           if (CrashLogWindows::current->WriteSavegame(filename, lastof(filename))) {
    00528             size_t len = _tcslen(_save_succeeded) + _tcslen(OTTD2FS(filename)) + 1;
    00529             TCHAR *text = AllocaM(TCHAR, len);
    00530             _sntprintf(text, len, _save_succeeded, OTTD2FS(filename));
    00531             MessageBox(wnd, text, _T("Save successful"), MB_ICONINFORMATION);
    00532           } else {
    00533             MessageBox(wnd, _T("Save failed"), _T("Save failed"), MB_ICONINFORMATION);
    00534           }
    00535           break;
    00536         case 15: // Expand window to show crash-message
    00537           _expanded ^= 1;
    00538           SetWndSize(wnd, _expanded);
    00539           break;
    00540       }
    00541       return TRUE;
    00542     case WM_CLOSE:
    00543       CrashLog::AfterCrashLogCleanup();
    00544       ExitProcess(2);
    00545   }
    00546
    00547   return FALSE;
    00548 }
    00549
    00550 static void ShowCrashlogWindow()
    00551 {
    00552   ShowCursor(TRUE);
    00553   ShowWindow(GetActiveWindow(), FALSE);
    00554   DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(100), NULL, CrashDialogFunc);
    00555 }