Description of CSeException
CSeException class is based on CException class provided by MFC. I overwrite some of useful methods, but it is working same way like any other exception class based on CException class - you can find description in documentation provided by Visual C++.
Source Files :
// // SeException.h By Martin Ziacek #ifndef __SEEXCEPTION_H__ #define __SEEXCEPTION_H__ class CSeException : public CException { DECLARE_DYNAMIC(CSeException) public: CSeException(UINT nSeCode, _EXCEPTION_POINTERS* pExcPointers); CSeException(CSeException & CseExc); _EXCEPTION_POINTERS* GetSePointers(void); PVOID GetExceptionAddress(void); UINT GetSeCode(void); void Delete(void); int ReportError(UINT nType = MB_OK, UINT nIDHelp = 0); BOOL GetErrorMessage(CString & CsErrDescr, PUINT pnHelpContext = NULL); BOOL GetErrorMessage(LPTSTR lpszError, UINT nMaxError, PUINT pnHelpContext = NULL); private: UINT m_nSeCode; _EXCEPTION_POINTERS* m_pExcPointers; }; void SeTranslator(UINT nSeCode, _EXCEPTION_POINTERS* pExcPointers); #endif //__SEEXCEPTION_H__
// // SeException.cpp By Martin Ziacek #include "stdafx.h" #include "SeException.h" #ifdef _DEBUG #define new DEBUG_NEW #endif #undef THIS_FILE static char THIS_FILE[] = __FILE__; #define CASE(nSeCode,CsString) case EXCEPTION_##nSeCode: / CsString.Format(_T("Exception %s (0x%.8x) at address 0x%.8x."),_T(#nSeCode),EXCEPTION_##nSeCode,m_pExcPointers->ExceptionRecord->ExceptionAddress); / break; void SeTranslator(UINT nSeCode, _EXCEPTION_POINTERS* pExcPointers) { throw new CSeException(nSeCode,pExcPointers); } IMPLEMENT_DYNAMIC(CSeException,CException) CSeException::CSeException(UINT nSeCode, _EXCEPTION_POINTERS* pExcPointers) { m_nSeCode = nSeCode; m_pExcPointers = pExcPointers; } CSeException::CSeException(CSeException & CseExc) { m_nSeCode = CseExc.m_nSeCode; m_pExcPointers = CseExc.m_pExcPointers; } UINT CSeException::GetSeCode() { return m_nSeCode; } _EXCEPTION_POINTERS* CSeException::GetSePointers() { return m_pExcPointers; } PVOID CSeException::GetExceptionAddress() { return m_pExcPointers->ExceptionRecord->ExceptionAddress; } void CSeException::Delete(void) { #ifdef _DEBUG m_bReadyForDelete = TRUE; #endif delete this; } int CSeException::ReportError(UINT nType/* = MB_OK*/, UINT nIDHelp/* = 0*/) { int rc; CString strMessage; GetErrorMessage(strMessage); rc = AfxMessageBox(strMessage,nType,nIDHelp); return rc; } BOOL CSeException::GetErrorMessage(CString & CsErrDescr, PUINT pnHelpContext/* = NULL*/) { BOOL rc = TRUE; if (pnHelpContext != NULL) *pnHelpContext = 0; switch (m_nSeCode) { CASE(ACCESS_VIOLATION,CsErrDescr); CASE(DATATYPE_MISALIGNMENT,CsErrDescr); CASE(BREAKPOINT,CsErrDescr); CASE(SINGLE_STEP,CsErrDescr); CASE(ARRAY_BOUNDS_EXCEEDED,CsErrDescr); CASE(FLT_DENORMAL_OPERAND,CsErrDescr); CASE(FLT_DIVIDE_BY_ZERO,CsErrDescr); CASE(FLT_INEXACT_RESULT,CsErrDescr); CASE(FLT_INVALID_OPERATION,CsErrDescr); CASE(FLT_OVERFLOW,CsErrDescr); CASE(FLT_STACK_CHECK,CsErrDescr); CASE(FLT_UNDERFLOW,CsErrDescr); CASE(INT_DIVIDE_BY_ZERO,CsErrDescr); CASE(INT_OVERFLOW,CsErrDescr); CASE(PRIV_INSTRUCTION,CsErrDescr); CASE(IN_PAGE_ERROR,CsErrDescr); CASE(ILLEGAL_INSTRUCTION,CsErrDescr); CASE(NONCONTINUABLE_EXCEPTION,CsErrDescr); CASE(STACK_OVERFLOW,CsErrDescr); CASE(INVALID_DISPOSITION,CsErrDescr); CASE(GUARD_PAGE,CsErrDescr); CASE(INVALID_HANDLE,CsErrDescr); default: CsErrDescr = _T("Unknown exception."); rc = FALSE; break; } return rc; } BOOL CSeException::GetErrorMessage(LPTSTR lpszError, UINT nMaxError, PUINT pnHelpContext/* = NULL*/) { ASSERT(lpszError != NULL && AfxIsValidString(lpszError, nMaxError)); if (pnHelpContext != NULL) *pnHelpContext = 0; CString strMessage; GetErrorMessage(strMessage); if ((UINT)strMessage.GetLength() >= nMaxError) { lpszError[0] = 0; return FALSE; } else { lstrcpyn(lpszError, strMessage, nMaxError); return TRUE; } }
Demo Project:
void CSehDemoDlg::OnBtnCreateException() { char *p = NULL; try { p[0] = 0; } catch(CSeException *e) { TCHAR trcMsg[1024]; e->GetErrorMessage(trcMsg,1024); TRACE(trcMsg); TRACE(_T("/n")); e->ReportError(MB_OK | MB_ICONSTOP); e->Delete(); } }
The Result:
