// program startup
virtual bool OnInit();
- // 2nd-level exception handling: we get all the exceptions occuring in any
+ // 2nd-level exception handling: we get all the exceptions occurring in any
// event handler here
virtual bool OnExceptionInMainLoop();
// and now for something different: this function is called in case of a
// crash (e.g. dereferencing null pointer, division by 0, ...)
virtual void OnFatalException();
+
+#ifdef __WXDEBUG__
+ // in debug mode, you can override this function to do something different
+ // (e.g. log the assert to file) whenever an assertion fails
+ virtual void OnAssert(const wxChar *file,
+ int line,
+ const wxChar *cond,
+ const wxChar *msg);
+#endif // __WXDEBUG__
};
// Define a new frame type: this is going to be our main frame
void OnThrowUnhandled(wxCommandEvent& event);
void OnCrash(wxCommandEvent& event);
+#if wxUSE_ON_FATAL_EXCEPTION
void OnHandleCrash(wxCommandEvent& event);
+#endif
// 1st-level exception handling: we overload ProcessEvent() to be able to
// catch exceptions which occur in MyFrame methods here
virtual bool ProcessEvent(wxEvent& event);
+#ifdef __WXDEBUG__
+ // show how an assert failure message box looks like
+ void OnShowAssert(wxCommandEvent& event);
+#endif // __WXDEBUG__
+
private:
// any class wishing to process wxWidgets events must use this macro
DECLARE_EVENT_TABLE()
enum
{
// control ids and menu items
- Except_ThrowInt = 100,
+ Except_ThrowInt = wxID_HIGHEST,
Except_ThrowString,
Except_ThrowObject,
Except_ThrowUnhandled,
Except_Crash,
+#if wxUSE_ON_FATAL_EXCEPTION
Except_HandleCrash,
+#endif // wxUSE_ON_FATAL_EXCEPTION
+#ifdef __WXDEBUG__
+ Except_ShowAssert,
+#endif // __WXDEBUG__
Except_Dialog,
Except_Quit = wxID_EXIT,
EVT_MENU(Except_ThrowObject, MyFrame::OnThrowObject)
EVT_MENU(Except_ThrowUnhandled, MyFrame::OnThrowUnhandled)
EVT_MENU(Except_Crash, MyFrame::OnCrash)
+#if wxUSE_ON_FATAL_EXCEPTION
EVT_MENU(Except_HandleCrash, MyFrame::OnHandleCrash)
+#endif // wxUSE_ON_FATAL_EXCEPTION
+#ifdef __WXDEBUG__
+ EVT_MENU(Except_ShowAssert, MyFrame::OnShowAssert)
+#endif // __WXDEBUG__
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(MyDialog, wxDialog)
_T("wxExcept Sample"), wxOK | wxICON_ERROR);
}
+#ifdef __WXDEBUG__
+
+void MyApp::OnAssert(const wxChar *file,
+ int line,
+ const wxChar *cond,
+ const wxChar *msg)
+{
+ // we don't have anything special to do here
+ wxApp::OnAssert(file, line, cond, msg);
+}
+
+#endif // __WXDEBUG__
+
// ============================================================================
// MyFrame implementation
// ============================================================================
_T("Throw &unhandled exception\tCtrl-U"));
menuFile->Append(Except_Crash, _T("&Crash\tCtrl-C"));
menuFile->AppendSeparator();
+#if wxUSE_ON_FATAL_EXCEPTION
menuFile->AppendCheckItem(Except_HandleCrash, _T("&Handle crashes\tCtrl-H"));
menuFile->AppendSeparator();
+#endif // wxUSE_ON_FATAL_EXCEPTION
+#ifdef __WXDEBUG__
+ menuFile->Append(Except_ShowAssert, _T("Provoke &assert failure\tCtrl-A"));
+ menuFile->AppendSeparator();
+#endif // __WXDEBUG__
menuFile->Append(Except_Quit, _T("E&xit\tCtrl-Q"), _T("Quit this program"));
wxMenu *helpMenu = new wxMenu;
DoCrash();
}
+#if wxUSE_ON_FATAL_EXCEPTION
+
void MyFrame::OnHandleCrash(wxCommandEvent& event)
{
wxHandleFatalExceptions(event.IsChecked());
}
+#endif // wxUSE_ON_FATAL_EXCEPTION
+
+#ifdef __WXDEBUG__
+
+void MyFrame::OnShowAssert(wxCommandEvent& WXUNUSED(event))
+{
+ // provoke an assert from wxArrayString
+ wxArrayString arr;
+ arr[0];
+}
+
+#endif // __WXDEBUG__
+
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxString msg;