| // Pass a connection pointer Accessed from the Connection.
PrintProviderError(pConnection);
PrintComError(e);
}
CoUninitialize();
}
void PrintProviderError(_ConnectionPtr pConnection)
{
ErrorPtr pErr = NULL;
if( (pConnection->Errors->Count) > 0)
{
long nCount = pConnection->Errors->Count;
// Collection ranges from 0 to nCount -1.
for(long i = 0;i < nCount;i )
{
pErr = pConnection->Errors->GetItem(i);
CString strError;
strError.Format(Error number: x\ts, pErr->Number, pErr->Description);
AfxMessageBox(strError);
}
}
}
void PrintComError(_com_error &e)
{
_bstr_t bstrSource(e.Source());
_bstr_t bstrDescription(e.Description());
// Print COM errors.
CString strError;
strError.Format(Error number: Description = s\tCode meaning = s,(LPCSTR) bstrDescription, e.ErrorMessage());
AfxMessageBox(strError);
}
调用方法：
CString strFileName;
TCHAR FileName[MAX_PATH];
TCHAR bigBuff[2048] = _T(); // maximum common dialog buffer size
TCHAR szFilter[] = _T(Text Files (*.mdb)|*.mdb|All Files (*.*)|*.*
);