Win32 COM exception handling

cpp_win32_com_exceptions.cpp

#include <iostream>

int main() {

  try {
    
    // ...
    
  } catch(_com_error &e) {
    _bstr_t source(e.Source());
    _bstr_t description(e.Description());
    std::wcout << L "Error: " << e.Error() << std::endl;
    std::wcout << L "ErrorMessage: " << e.ErrorMessage() << std::endl;
    std::wcout << L "Source: " << (!source ? L"" : static_cast <const wchar_t*>(source)) << std::endl;
    std::wcout << L "Description: " <<(!description ? L"" : static_cast <const wchar_t*>(description)) << std::endl;
  }

  return 0;
}