// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
-// Licence: wxWidgets licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
#include "wx/msw/private.h"
-// Don't implement WinMain if we're building an MFC/wxWidgets hybrid app.
-#if wxUSE_MFC && !defined(NOMAIN)
- #define NOMAIN 1
-#endif
+#if wxUSE_ON_FATAL_EXCEPTION
+ #include "wx/datetime.h"
+ #include "wx/msw/crashrpt.h"
+
+ #ifdef __VISUALC__
+ #include <eh.h>
+ #endif // __VISUALC__
+#endif // wxUSE_ON_FATAL_EXCEPTION
+
+#ifdef __WXWINCE__
+ // there is no ExitProcess() under CE but exiting the main thread has the
+ // same effect
+ #ifndef ExitProcess
+ #define ExitProcess ExitThread
+ #endif
+#endif // __WXWINCE__
#ifdef __BORLANDC__
// BC++ has to be special: its run-time expects the DLL entry point to be
// named DllEntryPoint instead of the (more) standard DllMain
#define DllMain DllEntryPoint
-#endif
+#endif // __BORLANDC__
#if defined(__WXMICROWIN__)
#define HINSTANCE HANDLE
#endif
-#if wxUSE_GUI
+// defined in common/init.cpp
+extern int wxEntryReal(int& argc, wxChar **argv);
// ============================================================================
// implementation: various entry points
// ============================================================================
+#if wxUSE_BASE
+
+#if defined(__VISUALC__) && !defined(__WXWINCE__)
+ // VC++ (at least from 4.0 up to version 7.1) is incredibly broken in that
+ // a "catch ( ... )" will *always* catch SEH exceptions in it even though
+ // it should have never been the case... to prevent such catches from
+ // stealing the exceptions from our wxGlobalSEHandler which is only called
+ // if the exception is not handled elsewhere, we have to also call it from
+ // a special SEH translator function which is called by VC CRT when a Win32
+ // exception occurs
+
+ // this warns that /EHa (async exceptions) should be used when using
+ // _set_se_translator but, in fact, this doesn't seem to change anything
+ // with VC++ up to 7.1 -- to be confirmed with VC++ 8
+ #if _MSC_VER <= 1310
+ #pragma warning(disable:4535)
+ #endif
+
+ // note that the SE translator must be called wxSETranslator!
+ #define DisableAutomaticSETranslator() _set_se_translator(wxSETranslator)
+#else // !__VISUALC__
+ #define DisableAutomaticSETranslator()
+#endif // __VISUALC__/!__VISUALC__
+
+// ----------------------------------------------------------------------------
+// wrapper wxEntry catching all Win32 exceptions occuring in a wx program
+// ----------------------------------------------------------------------------
+
+// wrap real wxEntry in a try-except block to be able to call
+// OnFatalException() if necessary
+#if wxUSE_ON_FATAL_EXCEPTION
+
+// global pointer to exception information, only valid inside OnFatalException,
+// used by wxStackWalker and wxCrashReport
+extern EXCEPTION_POINTERS *wxGlobalSEInformation = NULL;
+
+// flag telling us whether the application wants to handle exceptions at all
+static bool gs_handleExceptions = false;
+
+static void wxFatalExit()
+{
+ // use the same exit code as abort()
+ ::ExitProcess(3);
+}
+
+unsigned long wxGlobalSEHandler(EXCEPTION_POINTERS *pExcPtrs)
+{
+ if ( gs_handleExceptions && wxTheApp )
+ {
+ // store the pointer to exception info
+ wxGlobalSEInformation = pExcPtrs;
+
+ // give the user a chance to do something special about this
+ __try
+ {
+ wxTheApp->OnFatalException();
+ }
+ __except ( EXCEPTION_EXECUTE_HANDLER )
+ {
+ // nothing to do here, just ignore the exception inside the
+ // exception handler
+ ;
+ }
+
+ wxGlobalSEInformation = NULL;
+
+ // this will execute our handler and terminate the process
+ return EXCEPTION_EXECUTE_HANDLER;
+ }
+
+ return EXCEPTION_CONTINUE_SEARCH;
+}
+
+#ifdef __VISUALC__
+
+static void wxSETranslator(unsigned int WXUNUSED(code), EXCEPTION_POINTERS *ep)
+{
+ switch ( wxGlobalSEHandler(ep) )
+ {
+ default:
+ wxFAIL_MSG( _T("unexpected wxGlobalSEHandler() return value") );
+ // fall through
+
+ case EXCEPTION_EXECUTE_HANDLER:
+ // if wxApp::OnFatalException() had been called we should exit the
+ // application -- but we shouldn't kill our host when we're a DLL
+#ifndef WXMAKINGDLL
+ wxFatalExit();
+#endif // not a DLL
+ break;
+
+ case EXCEPTION_CONTINUE_SEARCH:
+ // we're called for each "catch ( ... )" and if we (re)throw from
+ // here, the catch handler body is not executed, so the effect is
+ // as if had inhibited translation of SE to C++ ones because the
+ // handler will never see any structured exceptions
+ throw;
+ }
+}
+
+#endif // __VISUALC__
+
+bool wxHandleFatalExceptions(bool doit)
+{
+ // assume this can only be called from the main thread
+ gs_handleExceptions = doit;
+
+#if wxUSE_CRASHREPORT
+ if ( doit )
+ {
+ // try to find a place where we can put out report file later
+ wxChar fullname[MAX_PATH];
+ if ( !::GetTempPath(WXSIZEOF(fullname), fullname) )
+ {
+ wxLogLastError(_T("GetTempPath"));
+
+ // when all else fails...
+ wxStrcpy(fullname, _T("c:\\"));
+ }
+
+ // use PID and date to make the report file name more unique
+ wxString name = wxString::Format
+ (
+ _T("%s_%s_%lu.dmp"),
+ wxTheApp ? wxTheApp->GetAppName().c_str()
+ : _T("wxwindows"),
+ wxDateTime::Now().Format(_T("%Y%m%dT%H%M%S")).c_str(),
+ ::GetCurrentProcessId()
+ );
+
+ wxStrncat(fullname, name, WXSIZEOF(fullname) - wxStrlen(fullname) - 1);
+
+ wxCrashReport::SetFileName(fullname);
+ }
+#endif // wxUSE_CRASHREPORT
+
+ return true;
+}
+
+int wxEntry(int& argc, wxChar **argv)
+{
+ DisableAutomaticSETranslator();
+
+ __try
+ {
+ return wxEntryReal(argc, argv);
+ }
+ __except ( wxGlobalSEHandler(GetExceptionInformation()) )
+ {
+ wxFatalExit();
+
+ // this code is unreachable but put it here to suppress warnings
+ return -1;
+ }
+}
+
+#else // !wxUSE_ON_FATAL_EXCEPTION
+
+#if defined(__VISUALC__) && !defined(__WXWINCE__)
+
+static void
+wxSETranslator(unsigned int WXUNUSED(code), EXCEPTION_POINTERS * WXUNUSED(ep))
+{
+ // see wxSETranslator() version for wxUSE_ON_FATAL_EXCEPTION above
+ throw;
+}
+
+#endif // __VISUALC__
+
+int wxEntry(int& argc, wxChar **argv)
+{
+ DisableAutomaticSETranslator();
+
+ return wxEntryReal(argc, argv);
+}
+
+#endif // wxUSE_ON_FATAL_EXCEPTION/!wxUSE_ON_FATAL_EXCEPTION
+
+#endif // wxUSE_BASE
+
+#if wxUSE_GUI
+
// ----------------------------------------------------------------------------
// Windows-specific wxEntry
// ----------------------------------------------------------------------------
// break the command line in words
wxArrayString args;
+
const wxChar *cmdLine = ::GetCommandLine();
if ( cmdLine )
{
args = wxCmdLineParser::ConvertStringToArgs(cmdLine);
}
+#ifdef __WXWINCE__
+ // WinCE doesn't insert the program itself, so do it ourselves.
+ args.Insert(wxGetFullModuleName(), 0);
+#endif
+
int argc = args.GetCount();
// +1 here for the terminating NULL
break;
}
#else
- (void)hModule;
- (void)fdwReason;
+ (void)hModule;
+ (void)fdwReason;
#endif // !WXMAKINGDLL
return TRUE;
HINSTANCE wxhInstance = 0;
-HINSTANCE wxGetInstance()
+extern "C" HINSTANCE wxGetInstance()
{
return wxhInstance;
}
projects / wxWidgets.git / blobdiff