C++ (Cpp) CComQIPtr::GetErrorInfo Examples

Example #1

File: DbOledb.cpp Project: okigan/dblib

void COledbErrors::_Init(HRESULT Hr)
{
   m_lCount = 0;

   CComPtr<IErrorInfo> spErrorInfo;
   ::GetErrorInfo(0, &spErrorInfo);
   if( spErrorInfo == NULL ) {
      // No error object
      m_p[0]._Init(Hr, CComBSTR(L"System"), CComBSTR(L"Function failed."));
      m_lCount = 1;
      return;
   }

   CComQIPtr<IErrorRecords> spErrorRecs = spErrorInfo;
   if( spErrorRecs != NULL ) {
      // Provider supports IErrorRecords
      ULONG nCount = 0;
      spErrorRecs->GetRecordCount(&nCount);
      for( ULONG i = 0; i < nCount; i++ ) {
         HRESULT Hr;
         ERRORINFO ErrorInfo;
         Hr = spErrorRecs->GetBasicErrorInfo(i, &ErrorInfo);
         if( FAILED(Hr) ) break;
         CComPtr<IErrorInfo> spErrorInfoRec;
         Hr = spErrorRecs->GetErrorInfo(i, ::GetUserDefaultLCID(), &spErrorInfoRec);
         if( FAILED(Hr) ) break;

         CComBSTR bstrSource;
         spErrorInfoRec->GetSource(&bstrSource);
         CComBSTR bstrMsg;
         spErrorInfoRec->GetDescription(&bstrMsg);
      
         m_p[m_lCount]._Init(ErrorInfo.hrError, bstrSource, bstrMsg);
         m_lCount++;
         if( m_lCount >= MAX_ERRORS ) break;
      }
   }

   if( m_lCount == 0 ) {
      // Provider only supports IErrorInfo
      CComBSTR bstrSource;
      spErrorInfo->GetSource(&bstrSource);
      CComBSTR bstrMsg;
      spErrorInfo->GetDescription(&bstrMsg);
      m_p[m_lCount]._Init(Hr, bstrSource, bstrMsg);
      m_lCount++;
   }
}